Therm-a-Rest® FAQs

Service & Repair

How do I repair my Therm-a-Rest mattress and/or obtain warranty service?

Click here to download the Universal Therm-a-Rest Mattress Repair Instructions, including how to locate leaks and make repairs in the field or at home on any mattress model.

If you have further questions about repair or warranty, or would like to send your mattress to us for repair. In the U.S., please contact our Customer Service department at 1-800-531-9531. For worldwide service and repair contact information, please click here.

Should you find yourself without access to Therm-a-Rest Repair Kits, repairs can also be made using items commonly found at most outdoor gear shops. (Remember that for maximum effectiveness, ALL of the below repairs should begin with a clean and dry mattress. An alcohol swab is an ideal cleaner that dries fast.)

  • Small leaks not requiring a patch: A urethane-based glue should be used. Some popular brands are SeamGrip® and AquaSeal. Apply a small dab, large enough to completely seal the hole, and allow 24 hours for drying. If your mattress fabric is relatively smooth like the NeoAir or Trail mattresses, peel-and-stick bicycle tube patch kits are an option offering instant repair.
  • Larger holes and tears: All mattresses can be repaired with a self-adhesive fabric patch—like those used to repair jackets and tents. These are commonly found in outdoor gear shops. Cut the patch in a circle to generously cover the hole. Apply a small amount of urethane-based glue to the back of the patch and the area to be covered on the mattress. Apply patch and press firmly. Wipe away excess glue from edges and allow 24 hours to dry.

If you’re not comfortable making the repair yourself and have some time before your next trip, call our service department at 1-800-531-9531 for instructions on sending your mattress back for repair.

Repair Your Therm-a-Rest Mattress
Repair Your Therm-a-Rest Mattress

Can I replace the valve on my Therm-a-Rest mattress?

Yes. A Therm-a-Rest Valve Replacement Kit will replace all metal and plastic mattress valves. Instructions for the kit can be found here.

Repair Your Therm-a-Rest Mattress
Repair Your Therm-a-Rest Mattress

What do I do if water gets inside my mattress?

Roll the mattress up to force the water out of the open valve. If there is a lot of water, you may have to do this several times. Hang the mattress upside down with the valve open in a warm, dry place. It will take about three days for the mattress to dry out.

Care & Use

What is the best way to clean my mattress?

Regular cleaning will extend the life of your mattress, especially if you sleep in direct contact with its surface.

Do not put your mattress in the washing machine. Cleaning with a hose or in a bathtub is best. Do not forget to close the valve while washing. For general cleaning, a quick scrubbing with Formula 409®, BioClean All-Purpose Cleaner, or other general household cleaner is best.

Therm-a-Rest mattress care
Therm-a-Rest mattress care

What's the best way to remove tree sap/tar?

For tree sap, spot clean with a cotton rag soaked in rubbing alcohol. This will take some work and sap will likely leave a stain. However, a dusting with talc or baby powder when you are done should eliminate any residual stickiness.

My mattress doesn’t seem to self-inflate. Is it defective?

Likely not. Although all of our foam-core mattresses self-inflate, (the NeoAir mattress does not have a foam core, therefore mouth-inflation is required) the extent to which they do is directly related to the properties of their foam. For example, our Camp & Comfort mattresses inflate incredibly fast because they use a much denser foam with a greater ‘memory’ of its uncompressed state. The ultralight, die-cut foams in our Fast & Light® mattresses on the other hand are chosen for their extremely light weight, trading off some self-inflation efficiency for ultralight performance and may require a few breaths to inflate fully.

If your mattress is new, or has been stored rolled or compressed for a significant amount of time, it could take up to 24 hours for the foam inside your mattress to fully regain its loft and maximum self-inflating efficiency. To help with this, we recommend inflating your mattress fully by mouth to help stretch the foam core back to its original loft.

What's the best way to inflate my NeoAir mattress?

Unroll your NeoAir mattress and open the valve. Blow air into the first section of the mattress and close the valve. Push the air from the inflated section into the bottom, non-inflated section of the mattress with the valve still closed. Open the valve and continue inflation. A regular length mattress takes an average of 20 strong breaths to inflate fully. Once inflated, you can personalize firmness by lying on the mattress with the valve near your head. Simply reach up and open the valve slightly to create your ideal level of support.

Using your NeoAir mattress
Using your NeoAir mattress

Will moisture build-up and ruin my mattress if I blow into it?

No. We have spent decades refining our coatings and fabrics to withstand such things and this assurance of lasting quality separates Therm-a-Rest mattresses from every other competitor. However, minimizing moisture is always a good idea. Always allow self-inflating mattresses to inflate on their own as much as possible, then just top them off with a few breaths at the end for added firmness. We also recommend storing your mattress unrolled and with the valve open. This keeps the foam core at maximum loft and allows any moisture build-up to evaporate slowly.

Will my breath freeze when blown into my mattress at low temperatures?

As your warm breath condensates in the cold, it is possible in extremely low temperatures to get a small accumulation of ice crystals inside your mattress. However, these pose no puncture hazard to any of our mattresses and the moisture itself is not a problem at all. (See “Will moisture build-up and ruin my mattress if I blow into it? “)

My NeoAir mattress loses air throughout the night. Do I have a leak?

Unless your mattress is going completely flat, it is unlikely that you have a leak. What you are noticing is the natural effect of cooling. The air you are inflating your mattress with is at body-temperature and, like all air, it contracts when cooled. A few more breaths once the mattress has cooled to ambient temperatures should suffice.

What’s the best way to store my mattress?

NeoAir: Your NeoAir mattress can be deflated and rolled tight for storage. We recommend leaving the valve open and storing your mattress in a stuff sack to protect it from dirt and sharp objects.

All Self-Inflating Mattresses: Store all self-inflating mattresses dry, unrolled and with valves open. Beware of extreme heat in places like attics and parked cars that can damage your mattress permanently. Under a bed or behind a couch that’s against a wall are good, space-saving options.

RidgeRest® or Z Lite Closed Cell Pads: Store your RidgeRest pad flat or loosely rolled. Z Lite pads can simply be stored in their pre-formed accordion folds. Though fine for active use in the field, neither should be stored long-term with straps to hold it rolled or attached to a pack or under heavy objects. This can permanently deform a closed-cell mattress.

Therm-a-Rest mattress care
Therm-a-Rest mattress care

What side of the mattress do I sleep on?

Sleep on the side with the logo. It is made of our nonslip fabric to ensure that even with a slippery sleeping bag, your mattress stays under you all night long. The bottom is generally a more rugged fabric that adds protection from punctures and abrasion. Some of our mattresses also come with small urethane dots on the bottom to prevent them from sliding around during the night.

Mattress Tech

What is R-Value?

R-Value is a measurement of a given material’s resistance to heat flow. The higher the R-Value, the greater the insulation provided.

How is heat lost while sleeping?

There are four methods heat is lost while sleeping:

  • Conduction — This is heat loss through two adjacent substances due to a temperature gradient such as direct contact of your warm body with the cold ground, and the primary type of heat loss that a mattress reduces. Without a mattress or pad, you will continue to lose heat until the ground beneath you (e.g. the planet) warms—a battle you cannot win. The higher the R-value of your mattress, the slower this process becomes and the warmer you will sleep.

  • Convection — This is active heat loss when warmed molecules move from one place to another and take the heat with them. In a sleep situation, this is generally encountered when a breeze blows across you or into your sleeping bag, moving away the warmed air around you. Your sleeping bag and tent reduce this method of heat loss.

  • Radiation — The transfer of heat energy between two objects via electromagnetic waves. This heat transfer does not require a medium - think about how the sun warms your face from way out in space on a freezing day. Redirecting those waves minimizes this type of heat loss. The reflective barrier in our NeoAir mattress does just this and contributes to its exceptional warmth.

  • Evaporative — Evaporation occurs when a liquid changes to a vapor. This “phase change" requires energy (heat) and your body is the source of it. There are two ways this cooling takes place.

Insensible or active perspiration is the direct loss of vapor through the skin, such as while breathing. This effect is enhanced greatly when in an extremely dry environment due to the driving effect of a humidity gradient. For instance, the extremely dry air of deserts and high altitudes can vaporize sweat before it has a chance to accumulate on your skin. When inhaled, it pulls more moisture from your body as well, raising the need to be hyper-vigilant when it comes to staying hydrated.

Sensible or active perspiration has a powerful and straightforward cooling effect, via the formation of sweat on your skin. On a hot summer day this is great, but sweating profusely because you are overdressed and overheated in winter can wet-out your insulative layers, requiring vast quantities of heat from your body to dry them with disastrous results.

How does self-inflation work?

In general, a self-inflating mattress is comprised of an open-cell foam core and an airtight fabric shell with valve. When you open the valve on a compressed self-inflating mattress, the open-cell foam core expands, inflating the mattress passively as it pulls air to the inside. Once inflated, you can adjust the firmness with additional breaths, or by letting air out.

Pro Tips

What's the best way to pack my mattress?

ProLite, ProLite Plus and NeoAir Mattresses: Most of our ProLite and NeoAir mattress are compact enough to fit in even the smallest packs. For those counting every ounce and carrying a frameless pack, your mattress can be partially inflated, folded and used as a comfortable frame sheet along your back. (This might also work with our Z Lite closed-cell pads, depending on your pack size.) Self-inflating Fast & Light® mattresses can also be folded in half and then rolled, allowing them to fit inside a pack. If you have to pack you mattress on the outside, keep it in a stuff sack, and pack it under your pack lid to keep it protected. Though most pack manufacturers put “pad straps" on the outside of their packs, they are usually at the bottom and expose your pad to undue abuse every time you put your pack down.

Closed Cell Pads and Trek & Travel Self-Inflating Mattresses: In all but the biggest packs, size dictates that you carry these on the outside of your pack. How they fit best will depend on how your pack is setup. Keep all self-inflating mattresses in a stuff sack to protect them. You need not worry about puncturing close-cell pads and they can often be handy to roll things in for protection/storage like mountaineering snow pickets, ice axes and tripods. Be mindful that a pad stored vertically on your pack affords you greater clearance in forests, is less likely to get damaged by a passing branch, and is less likely to bump you off-balance while scrambling or traversing talus.

Using your NeoAir mattress
Using your NeoAir mattress

Winter Sleeping Smarts

  • The Ultralight Winter Sleep Solution: For the ultimate, ultralight solution to cold weather sleeping, travel with a small ProLite, ProLite Plus, or NeoAir mattress (depending on temperatures), coupled with a full-length RidgeRest® mattress as a bottom layer. In addition to the essential comfort you need in the hips and torso that this top layer provides, you also get the ultra-efficient boost of warmth from closed cell foam, along with the protection you need for open bivies on bare ground or on ledges. You can also cut the RidgeRest mattress to a custom size, further reducing your load. As a bonus, you can use closed cell foam as a splint in emergencies.

    To pack, roll the ProLite mattress inside the RidgeRest mattress for protection when strapped to the outside of your backpack.

  • Stay hydrated and fed: No one likes getting up in a snowstorm to pee but your body needs energy and to stoke its furnace. At high altitudes, proper hydration also helps blood flow, keeping warm, oxygenated blood freely flowing to your extremities.

  • Dress well: Do you know the old adage about sleep naked to sleep warm? Don’t believe it. Sleeping in at least a base layer will help with moisture management, keeping you and your bag drier and, in cold weather; it’s just more comfortable and easier to get out of your bag for that late night bathroom break.

  • Stay Dry: Wet clothes and/or sleeping bags are a recipe for disaster in cold weather. Ventilate your shelter and stay off the tent floor where condensation accumulates. In the morning, hang things out to dry as the bright sun can dry quite well - even in sub-freezing temperatures. If you’ll be out for more than a night, take every opportunity to dry everything - especially your insulation.

Prop 65 FAQs

What is California Proposition 65?

Proposition 65 is the Safe Drinking Water and Toxic Enforcement Act passed by voters in the State of California in 1986. The act was created to inform people about possible exposure to chemicals known by the State of California to cause cancer, birth defects and/or other reproductive harm.

What are the requirements of Proposition 65?

Proposition 65 requires that the Governor of California maintain and publish a list of harmful chemicals. The list is updated annually and includes chemicals that can be found in solvents, drugs, dyes, food additives, by-products of certain processes, pesticides, and tobacco products.

A chemical is listed if it has been classified as a reproductive toxicant or carcinogen by an "authoritative" organization on the subject. The U.S. Environmental Protection Agency, U.S. Food and Drug Administration, National Institute for Occupational Safety and Health, the National Toxicology Program, and the International Agency for Research on Cancer are considered authoritative for carcinogens. For reproductive toxicants, the authorities are the U.S. Environmental Protection Agency, U.S. Food and Drug Administration, National Institute for Occupational Safety and Health, and International Agency for Research on Cancer. Chemicals will also be listed if they are required to be labeled or identified as a carcinogen or as a reproductive toxicant by an agency of the state or federal government.

Why has Therm-a-Rest placed a Proposition 65 label on its products?

Any company with ten or more employees operating or selling products within the State of California must comply with the requirements of Proposition 65. To comply, businesses are: (1) prohibited from knowingly discharging listed chemicals into sources of drinking water; and (2) required to provide a "clear and reasonable" warning before knowingly and intentionally exposing anyone to a listed chemical.

A Proposition 65 warning means that the business has evaluated the exposure and has concluded that it exceeds the "no significant risk level,” or that the business is providing a warning based on the presence of a “listed” chemical without actually evaluating the exposure.

Therm-a-Rest is providing a warning based on our knowledge about the presence of one or more listed chemicals without attempting to evaluate the level of exposure. While using a Therm-a-Rest product, the exposure to a “listed” chemical may be well within the “no significant risk” range, but out of caution, we have placed the Proposition 65 warning labels on our products.

Are consumers using a Therm-a-Rest product with a Proposition 65 warning at risk?

The California government states: “The fact that a product bears a Proposition 65 warning does not mean by itself that the product is unsafe.” The government also explained, “You could think of Proposition 65 more as a ‘right to know’ law than a pure product safety law.”

A Proposition 65 warning means that the product contains one or more listed chemicals. By law, a warning is required unless the business proves that the exposure to the chemical poses "no significant risk." The "no significant risk" level for carcinogens is defined as the level which is calculated to result in not more than one excess case of cancer in 100,000 individuals exposed over a 70-year lifetime. Therefore, if you are exposed to the chemical in question at this level every day for 70 years, theoretically, it will increase your chances of getting cancer by no more than 1 case in 100,000 individuals so exposed.

The "no significant risk" level for reproductive toxicants is defined as the level of exposure which, even if multiplied by 1,000, will not produce birth defects or other reproductive harm. Therefore, the level of exposure is below the "no observable effect level," divided by 1,000. (The "no observable effect level" is the highest dose level which has not been associated with observable reproductive harm in humans or test animals.)

For further information about California’s Proposition 65, please visit


How do Therm-a-Rest® sleeping bags offer a better way to sleep in the outdoors?

Therm-a-Rest® sleeping bags offer a lighter, more comfortable way to sleep. Using an integrated system approach that pairs mattress and pad together, our system solution also allows our bags to be among the lightest on the market, making them an ideal choice for anyone in search of warmer, more restful nights and lighter, more productive days in the backcountry. Read more about our Design Philosophy.

Do I have to use a Therm-a-Rest® pad with my Therm-a-Rest® sleeping bag?

No. Our SynergyLink system that connects your bag and mattress together works with any pad up to 25” wide. We recommend Therm-a-Rest® NeoAir mattresses, especially the XTherm, All Season and XLite, because they are incredibly light and warm. They also provide reflective warmth you can feel through the bottom of our 3-season bags. Self-inflating mats and closed-cell mats also work well for customers who don’t have a Therm-a-Rest® NeoAir mattress.

Like many sleeping bags, Therm-a-Rest® sleeping bags are tested and rated when paired with a mattress with an R-value of approximately 4.7, where R-Value is a measurement of the warmth of the mattress. This R-value is clearly marked on all Therm-a-Rest® mattress packaging and on our website. As long as you use a mattress with this R-value or higher, most people will be warm at the advertised temperature rating for any of our bags.

Everyone sleeps differently in the outdoors, and you must ultimately find the combination that works best for you. If you are a warm sleeper, or are using a bag that has a temperature rating significantly higher than the temperature you are sleeping in, you may be comfortable with a lower R-value mattress. Alternatively, if you sleep cold, or have a bag that has a temperature rating significantly lower than temperature sleeping in, you may prefer to use a higher R-value pad.

What kind of testing went in to the development of Therm-a-Rest® sleeping bags?

For over 40 years Therm-a-Rest has pursued a single mission: to provide the best night of sleep in the outdoors. Along the way, we’ve spent countless hours field testing, conducting independent trials and studying consumer feedback. And we are one of the only manufacturers in North America with an in-house cold chamber. For close to 20 years, we have tested sleeping bags and mattresses together in our cold chamber and examined almost every aspect of sleep insulation to better gauge real world performance.

We have always approached product testing with the view that the mattress and sleeping bag need to function together as one system to provide optimal comfort and performance. Through our decades of research, we have learned exactly what makes a great night under the stars.


What makes a Therm-a-Rest women’s sleeping bag a women’s bag?

Our extensive research into the differences between the way men and women sleep confirms that most women are indeed colder sleepers than men. Our approach to designing women’s-specific sleeping bags with added warmth has three main components:

First, we addressed fit because a bag with too much or too little space is not efficient and will result in lost heat. Having just the right amount of dead air space around you allows you to heat your bag up efficiently and makes maintaining that warmth easier. Our women’s bags are 6 in. (15 cm) shorter in length than our unisex bags, and we cut them with added room in the hip area, while designing a more tailored fit in the shoulders.

Second, our reflective ThermaCapture™ Radiant Heat Technology [link to tech page] is applied to the inner lining of all women’s sleeping bags, reflecting radiant heat that is otherwise lost through traditional insulation. With it, you warm-up faster and it saves you weight and bulk because we can use it, instead of down or synthetic insulation, to contribute about 5F (3C) degrees-worth of the sleeping bag’s temperature rating.

And finally, we added a great little down pocket for your feet inside the foot box of each bag that we call the Toe-asis™ [link to tech page]. How many times have you gotten in your bag with socks on, hoping to warm-up your feet faster? Now you have the choice to simply slide your feet up into this little haven of warmth and comfort. You can even roll side-to-side, and the whole foot box rolls with you to keep your feet toasty warm.

Why are Therm-a-Rest® sleeping bags so great for slide sleepers?

Research shows that almost 70% of people sleep on their side, 13% sleep on their back, and only 7% sleep on their stomach. Unlike most mummy bags that are designed for people who sleep on their back, Therm-a-Rest® sleeping bags are designed to accommodate a wide range of sleep positions.

Therm-a-Rest sleeping bags are designed with extra room in the torso to allow your shoulders, elbows and hips to move freely. At the head and foot the fit is closer, keeping you warm and decreasing overall weight. In addition, the placement of our SynergyLink connectors is optimized to keep the mattress secure while you roll, yet allow the head and foot of the bag to rotate 90-degrees in either direction, following you for maximum comfort and warmth. Our Efficient Comfort design is ideal for side sleepers or anyone who wants more freedom of movement without adding extra weight to their pack.

How do I insert my pad into the SynergyLink Connectors attached to my sleeping bag?

Our patent-pending, easy-to-use connectors ensure that you stay on your pad, so you can stay warm all night. To insert your mattress, start with a fully inflated pad. Insert the head of the pad into the fabric connector near the head of the sleeping bag, then bend the pad and insert the foot of the pad into the other connector.

How do I attach a Therm-a-Rest quilt to a mattress?

The Mattress Loop Kit, now included with each new blanket, and sold separately in the Fast & Light Mattress Snap Kit, includes (8) loop tabs with adhesive backing that let you attach your Therm-a-Rest blanket directly to any mattress, creating a lightweight sleep system.

Can a Therm-a-Rest® NeoAir mattress really make my Therm-a-Rest® sleeping bag feel warmer?

Unlike other mattresses, Therm-a-Rest® NeoAir mattresses reflect a moderate amount of radiant heat. When used next to the skin, the effect is noticeable. Although this radiant heat always contributes to overall warmth, most sleeping bags have too much insulation in the back for the effect to be noticed. Therm-a-Rest® sleeping bags are designed with less insulation in the back than most other sleeping bags, allowing radiant heat to be felt throughout the night.

What is Eraloft synthetic insulation?

Therm-a-Rest® sleeping bags use a unique synthetic insulation that incorporates the best characteristics of both short and long staple insulation. Our EraLoft synthetic insulation uses three distinct fibers to create a structure that is lightweight, compressible, warm and durable. The hollow fibers are highly resistant to water and provide warmth even when wet. The insulation is built into Therm-a-Rest® sleeping bags using shingle construction, a configuration that minimizes heat loss and provides the most efficient performance.

What are EN Ratings for sleeping bags?

Developed in Europe, the EN 13537 sleeping bags ratings are the results of strict, standardized tests designed to provide you with a more meaningful and objective measure of a sleeping bag's warmth. Without standardization, a sleeping bag's advertised warmth rating is unreliable at best, arbitrarily picked by the manufacturer. That's why most manufacturers today submit their sleeping bags to an EN-certified lab for testing.

Each EN sleeping bag test produces four temperature ratings-Upper Limit, Comfort, Lower Limit and an Extreme rating, with the following definitions:

From Wiki:

  • Upper Limit - the temperature at which a standard man* can sleep without excessive perspiration. It is established with the hood and zippers open and with the arms outside of the bag.
  • Comfort - the temperature at which a standard woman* can expect to sleep comfortably in a relaxed position.
  • Lower Limit - the temperature at which a standard man can sleep for eight hours in a curled position without waking.
  • Extreme - the minimum temperature at which a standard woman can remain for six hours without risk of death from hypothermia (though frostbite is still possible).

*For the purpose of these measurements, a "standard man" is assumed to be 25 years old, with a height of 1.73 m and a weight of 73 kg; a "standard woman" is assumed to be 25 years old, with a height of 1.60 m and a weight of 60 kg.

The three ratings commonly advertised are Comfort, (Lower) Limit and Extreme. For Men's bags, most companies advertise the Limit rating, and for women's bags, the Comfort rating, though even this can vary.

To provide you a more meaningful selection process, Therm-a-Rest sleeping bags are now grouped into seasons and, within that grouping, we provide you with the exact EN test results for each bag so you can compare it directly against other EN-rated bags.


Is your down ethically sourced?

Therm-a-Rest actively supports industry-wide efforts to ensure all down-filled products are made with the least harm possible. We are opposed to inhumane practices and actively work with peers across all industries to improve the treatment of geese. Our product development team plays an active role in the Outdoor Industry Association (OIA) and its Textile Exchange Materials Traceability Working Group (TEMTWG). Our team also serves on the TEMTWG Down Task Force, working to address key issues in the down and feather industry and manufacturing supply chain.

To learn more about OIA Working Groups visit:

Care & Use

What should I do if my sleeping bag loses down?

It is unusual, but occasionally a down plume can pass through the fabric of any sleeping bag. The best solution is to cut the down plume as close to the fabric as possible with a pair of scissors. This removes the sharp end of the plume that managed to penetrate the fabric. Then, push the remainder of the plume back into the bag. Rub the fabric between your fingers to seal the hole. Most sleeping bags hold more than two million down plumes. The loss of a handful will make no difference in your sleeping bag’s performance.

How do I store my sleeping bag when not in use?

Sleeping bags must be stored dry and loose (not compressed) in order to extend the life of the bag. All Therm-a-Rest® sleeping bags come with a Compartmental Storage Sack. For long term storage, the sleeping bag should be stored with the sack fully extended. For short-term storage or when shipping, you can use the smaller draw cord loop in the center of the sack to create a tighter container that saves space.

How do I clean my Therm-a-Rest® sleeping bag?

Follow the care instructions below to help maintain the high quality and extend the life of your down or synthetic Therm-a-Rest® sleeping bag.

Hydrophobic Down Care Instructions:

All hydrophobic down treatments wash out over time, and washing is hard on all down. Extend the life of your bag by spot cleaning with a damp sponge, and only machine washing when necessary.


Hand wash or machine wash in a large capacity, front loading washing machine, using 3 oz. of Nikwax(r) Down Wash(tm). Select cold water and a gentle/delicate cycle with two rinses. We recommend an additional spin cycle as well to extract as much water as possible before drying.

DO NOT dry clean. DO NOT bleach. DO NOT iron.


Hang dry your bag whenever possible. This can be a long process (24-48 hours or more), but this is by far the best way to get the longest life from your down. Use a well-ventilated, low-humidity environment. Hand-tease or shake out your bag gently to break-up down clumps, and flip it often to help speed the process.

If you need to dry your bag faster, tumble dry in a large dryer on low heat. As your bag gets drier, it will begin to loft and can actually fill the dryer chamber, preventing it from tumbling. This can cause hot spots and even melt the bag's shell, so check it often for overheating and visually inspect frequently to make sure it's tumbling. When you check it, feel for clumps of wet down and either shake the bag gently or hand-tease the clumps apart to redistribute down. Throwing in 3-5 tennis balls can help agitate the bag, breaking up those wet down clusters to speed dry times.

Nikwax® Hydrophobic Down Treatment and Re-Treatment

Use Nikwax® Down Proof to restore your down's hydrophobic properties. Specially formulated to renew the Nikwax Hydrophobic Down treatment, it can also be used to provide improved water-resistance to any down bag. Follow directions on the bottle.


The less time your sleeping bag is compressed, the longer it will serve you by maintaining the loft necessary to keep you warm. Store your sleeping bag loose, in a cool, dry place. If you must store it in a bag, use the extended storage sack it came in, or something even larger. Never use a waterproof bag for long-term storage.

Eraloft Insulation Care Instructions:


Hand wash or machine wash in large-capacity, front loading washing machine. Use a mild, non-detergent soap. Select cold water and a gentle cycle with two rinses.

DO NOT dry clean. DO NOT bleach. DO NOT iron.


Hang dry your bag whenever possible. This can be a long process (24-48 hours), but this is by far the best way to get the longest life from your bag. Use a well-ventilated, low-humidity environment. Unzip fully and flip it often to help speed the process.

If you need to dry your bag faster, tumble dry in a large dryer on low heat. As your bag gets drier, it will begin to loft and can actually fill the dryer chamber, preventing it from tumbling. This can cause hot spots and even melt the bag's shell, so check it often for overheating and visually inspect frequently to make sure it's tumbling.


The less time your sleeping bag is compressed, the longer it will serve you by maintaining the loft necessary to keep you warm. Store your sleeping bag loose, in a cool, dry place. If you must store it in a bag, use the extended storage sack it came in, or something even larger. Never use a waterproof bag for long-term storage.

Service & Repair

What if I want to return a Therm-a-Rest® sleeping bag?

Our Better Sleep Guarantee ensures that if you are not completely satisfied with your Therm-a-Rest® sleeping bag, we will give you a full refund – no questions asked. Return your clean, undamaged bag or blanket to the place of purchase within 90 days, with your original receipt, and receive a full refund. If your retailer is not participating, please contact Therm-a-Rest directly. Learn more about our Better Sleep Guarantee.

What is the Therm-a-Rest® Warranty policy for sleeping bags?

Therm-a-Rest® offers a Limited Lifetime Warranty for most products including all sleeping bags. Your sleeping bag is guaranteed without time limit against defects in materials and workmanship. We also offer repair services for damages not covered under warranty. Learn more about Therm-a-Rest® Warranty & Repair.


Which cot will best suit my needs, a LuxuryLite® UltraLite Cot™ or a LuxuryLite® Mesh Cot?

While both LuxuryLite cots are lightweight and pack up small enough to easily fit in a backpack, pannier or portage bag, our UltraLite Cot is the lightest, most packable cot available. However, if breathability is a priority, our Mesh Cot offers the most breathable comfort.

How breathable are LuxuryLite cots?

Our Mesh Cot is very breathable, with the tiny holes in the fabric allowing for air circulation. Our UltraLite Cot fabric is not breathable, but the lack of breathability only affects contact points with the body; the cot’s open, off-the-ground design allows air to circulate below the cot to help cool hot spots.

How warm are the cots? How can I make my cot warmer?

While LuxuryLite cots offer no insulation, you can easily increase the warmth of the cot by pairing it with a Therm-a-Rest ® mattress or blanket, or our new Therm-a-Rest® LuxuryLite® Cot Warmer. Featuring ThermaCapture® Radiant Heat Technology, the Cot Warmer attaches to your cot to capture your body’s heat and increase cot warmth by 10-15 degrees F.

Use Tips

What is single bow vs. twist bow construction? What are the recommended steps for assembly?

A single bow (one pole) can be used for a lighter weight setup, while a twist bow (double pole construction) is used for extra support. To build a single bow, insert a male pole into a female pole. Place a nylon foot on each end using the hole closest to the hook side, with the pole positioned on top of the platform. To build a twist bow, place a male pole and a female pole into one foot. Repeat the same process with another foot, so the two pieces are identical. Connect the male and female poles to create a bow. When assembled correctly, the feet will face opposite directions.

How can I make sure poles are fully seated in the nylon feet?

Poles need to be fully seated in the back of the hole of the foot. To check if a pole is fully seated, you can tap it with a hand or against the ground gently.

Are there any tips for making cot assembly easier?

To make installation easier, lay out half-assembled poles (one pole seated into one foot for single bow setup; a male pole and female pole seated into one foot for twist bow setup). Line up so all feet face in the same direction, which will help you more easily find the parts you are looking for.

What is the proper technique for installing single or twist bows?

Stand at the end of the fabric with both your feet on the shock-corded poles. Attach a single bow to one of the shock-corded poles using the hook on the nylon foot. Holding the opposite foot and the center of the pole, pull the bow away from the fabric until it is possible to hook the other foot. To attach a twist bow, make sure poles are assembled correctly by first lining up poles in the same direction so one set appears upside down. Connect one end of the bow to a shock-corded pole using the hook on the nylon foot. Twist (rotate) the other foot 180 degrees until the hook is facing the fabric. Apply tension to the bow with your free hand and hook the other foot.

Should I use standard or lightweight setup on my UltraLite Cot or Mesh Cot?

For UltraLite Cots, the Lightweight Setup includes 4 single bows that support up to 175 lbs. Standard Setup includes 4 single bows and 2 twist (double) bows in center locations for extra support of weight up to 325 lbs. If you feel contact with a pole bow when lying in a cot that is set up with single poles, it is recommended that you use a twist bow for extra support. For Mesh Cots, Lightweight Setup (4 twist bows) supports up to 175 lbs, while Standard Setup (6 twist bows) supports up to 350 lbs.

How customizable are LuxuryLite cots? What if I need extra support in a particular place?

You will notice there are more pole holes than there are poles. LuxuryLite Cots are designed for three different pole settings, providing the most adjustability of any cot. Multiple pole holes allow you to choose between no bow, a single bow or a double bow at different locations to customize your cot. For the lightest possible configuration for your needs, start with the four single poles, and then add poles where you feel you need the added support.

Do I need to take the cot apart completely when packing up/moving camp to a new location?

Cots can be stored partially assembled, saving you time during multi-day trips. For ease of reassembly, leave poles in foot when storing (may require larger stuff sack).

How should I get into and out of the cot? Can I sit on the side of the cot?

Sit down to get into the cot, avoiding any jumping or sliding, which can cause feet to splay. Once you are in the cot, the cot will sustain a great amount of direct pressure (increasing tension with applied weight), and you can roll freely from side to side. However, try to avoid any rocking motion from front to back, which can cause feet to splay and hooks to break off. When getting out of your cot, sit on the fabric or mesh (not the side poles) and push off on the side poles above the feet rather than between the feet to avoid generating lateral force and splaying feet sideways.

Care & Use

How do I clean my LuxuryLite cot?

Spot clean fabric as necessary with a mild detergent. Do not machine wash. Hang to dry.

If I use the cot in my tent, what can I do to protect my tent from any abrasion?

LuxuryLite® cots have twice as many, and more gently rounded feet compared to most cots on the market, which helps distribute your body weight and minimize cot feet wear and tent floor abrasion. Placing fabric or padding under the cot feet can also help further protect your tent from potential abrasion (especially on hard, rocky ground). Wear on tent floors will vary depending on the fabric weight. If your tent develops any wear spots due to gossamer fabrics and coatings, reinforce wear spots with pressure sensitive repair patches available in Therm-a-Rest® Repair Kits or similar products.

Service & Repair

Do LuxuryLite cots come with a warranty?

Information about our Limited Lifetime Warranty and repair service can be found on our website:

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