Shelter ยท Gear Review
Sleeping pads. Half of a warm night is underneath you.
For most households, the first pad to buy is a closed-cell foam one, and the Therm-a-Rest Z Lite SOL is our top pick: it cannot go flat, it makes every blanket and bag you own warmer on a cold floor, and it costs little. The NEMO Switchback is the same idea, a little softer. For a thick bed in a car or through a long outage, the Exped MegaMat is the warmest pad here. For cold camping you carry, the NEMO Tensor All-Season, and on a budget, the Klymit Insulated Static V.
Top pick
Therm-a-Rest Z Lite SOL
Type
Closed-cell foam
Warmth
R 2.0, maker's figure
At a glance: Therm-a-Rest Z Lite SOL
Strengths
- Closed-cell foam holds no air, so there is nothing to leak or deflate overnight.
- Therm-a-Rest says laying it under another pad adds R 2.0 of warmth and protects that pad from punctures.
- It is the least expensive pad on this page at list price, about $35 to $60 when we checked.
- It weighs 14 ounces in the Regular size and doubles as a seat or a pad for a child.
Limitations
- On its own, its R 2.0 matches REI's pairing for nights around freezing, not colder.
- It is firm and thin, and side sleepers often find it hard on hips and shoulders.
- Owners and testers report it flattening with heavy nightly use.
- It folds into a bulky block about 20 by 5 by 5.5 inches.
By Dan Whelan, founder of New World Survival
Researched from CPSC and U.S. Fire Administration guidance, maker documentation, independent testing, and owner reports. See our sources
The one thing to know
Buy the R-value. Comfort is a separate question.
A sleeping bag cannot insulate the side you lie on, because your weight crushes it flat. The pad does that job, and its R-value is the number that says how well: the higher it is, the more it slows heat flowing from your body into the floor or ground. A thick, cushy pad is not automatically a warm one. An uninsulated air pad can feel like a mattress and still sleep cold. Our sleeping pad handbook explains the ASTM F3340 test behind the number and REI's table pairing R-values with nighttime lows.
R-values add. REI says so plainly and suggests a closed-cell foam pad under an air or self-inflating pad, (REI) and Therm-a-Rest says laying the Z Lite SOL under another pad adds R 2.0 and protects the upper pad from punctures. (Therm-a-Rest) That is why a foam pad is the first purchase for most households: it works alone on a cold floor at home, it goes under an air pad later for winter camping, and it is the backup if the air pad ever leaks. One caution on the numbers: of the makers here, only Klymit labels its figure as an ASTM R-value on its product page; the others list an R-value without naming the test.
A bag's temperature rating assumes an insulated pad under it. REI puts that pad at R 4 in its sleeping pad guide, (REI) and at about R 5.5 in its sleeping bag guide. (REI) On a Z Lite SOL alone, expect any bag to sleep colder than its label; for a room near freezing or a winter campsite, lay it under an insulated pad.
A pad keeps the cold floor from taking your heat. It does not make heat, and no pad makes an unsafe heat source safe. The CPSC says never to use fuel-burning portable heaters or lanterns while sleeping in enclosed areas such as tents, campers, and vehicles, (CPSC) and the U.S. Fire Administration says to keep bedding at least 3 feet from any heater and to turn heaters off when you go to bed. (U.S. Fire Administration) Pads and bags are bedding.
The field
Five pads, from a foam mat to a thick bed.
These are the pads we could buy new on November 9, 2026, chosen for a household's jobs: a cold floor when the heat goes out, a car in winter, and camping. R-values, thickness, and weights come from the makers and REI; price ranges from listings the same day. We did not bench-test them, and none of the testers we read used them as an indoor floor pad during an outage.
Therm-a-Rest Z Lite SOL
- Best for: a cold floor at home, a first pad
- Type: closed-cell foam, folds
- R-value: 2.0
- Thickness: 0.75 inch, 14 ounces Regular
- Sizes: Small 51 in, Regular 72 in
- Typical price: about $35 to $60
NEMO Switchback
- Best for: the same jobs, slightly softer
- Type: closed-cell foam, folds
- R-value: 2.0
- Thickness: 0.9 inch, 14.5 ounces Regular
- Sizes: Short 51 in, Regular 72 in
- Typical price: about $50 to $60
Exped MegaMat
- Best for: a car bed, a long outage, car camping
- Type: self-inflating foam and air
- R-value: 8.1
- Thickness: 4 inches, about 4.5 pounds Medium Wide
- Sizes: Medium Wide to Long Extra Wide
- Typical price: about $260 to $280
NEMO Tensor All-Season
- Best for: cold camping you carry
- Type: insulated air pad
- R-value: 5.4
- Thickness: 3.5 inches, about 1 pound Regular
- Sizes: Regular Mummy to Long Wide
- Typical price: about $200 to $260
Klymit Insulated Static V
- Best for: a warm air pad on a budget
- Type: insulated air pad
- R-value: 4.2, labeled ASTM by Klymit
- Thickness: 2.5 inches, 22 ounces Regular
- Sizes: Regular, Extra Large
- Typical price: about $80 to $100
Reading the table
REI pairs nights around freezing with R 2 to 3.9, nights around 20°F with R 4 to 5.4, and nights near 0°F with R 5.5 or more. A foam pad under an air pad adds its R-value, so a Z Lite SOL under a Tensor makes about R 7.4.
Sources: Z Lite SOL specs from Therm-a-Rest; Switchback specs from REI; MegaMat specs from Exped USA; Tensor specs from REI; Klymit specs and its ASTM label from Klymit, which now sells it as the Insulated Static V Peak; R-value pairings from REI's sleep system table and additivity from REI. Prices from Amazon, makers, and retailers, read November 9, 2026. Prices move often.
Our picks
Foam first for every household, then air for the trips that need it.
We weighted reliability and warmth for the money most, because a household pad is often bought for a night when nothing else can go wrong. Every expert we read ranks pads for backpacking; we read their findings through a household's eyes, and where that changed our pick, we say so.
Top pick
Therm-a-Rest Z Lite SOL
An accordion-folding closed-cell foam pad, R 2.0, 0.75 inch thick, with a reflective surface on one side, in a 72-inch Regular and a 51-inch Small. (Therm-a-Rest) Backpacking testers mostly prefer the softer NEMO Switchback, and OutdoorGearLab likes the Z Lite better as a supplement than as your only pad. (OutdoorGearLab) For a household, those are the right terms: on a floor under your own bedding it does the one job that matters, and later it goes under an air pad for camping. It has no valve and nothing to leak, which matters most on the night you need it. Switchback Travel calls it durable, light, and inexpensive, and notes it is popular with ultralight and budget backpackers and with winter campers as a second pad. (Switchback Travel) On November 9, 2026, it was out of stock at Therm-a-Rest's own store but in stock on Amazon.
Check price on AmazonFoam co-pick
NEMO Switchback
The same R 2.0 in a slightly thicker, 0.9-inch dual-density foam. OutdoorGearLab named it the best value in non-inflatable pads and called it practically indestructible, though it found side sleeping nearly impossible and saw a little collapse in the ridges after about a month. (OutdoorGearLab) SectionHiker found it a good deal more comfortable than the Z Lite, (SectionHiker) and CleverHiker, its top foam pick, would not use it alone below about 40°F. (CleverHiker) Buy whichever of the two is in stock at the better price; either does the household job.
Check price on AmazonThick and warm, for a car or a long outage
Exped MegaMat
A 4-inch self-inflating pad rated R 8.1, the warmest on this page, with a top-up pump, a temporary repair kit, and a stuff sack included. (Exped USA) OutdoorGearLab has counted it among its favorite camping mattresses for years, and its testers suggest setting it up at home before the first trip to break in the foam; they found it took 40 to 50 minutes to self-inflate almost fully. (OutdoorGearLab) For a household it is a real bed on a cold floor through a week-long outage, or in the back of a car. It is heavy and bulky, and its warranty is 5 years, not lifetime. OutdoorGearLab's top camping mattress, the Therm-a-Rest MondoKing 3D, was sold out at the maker when we checked.
Check price on AmazonFor cold camping you carry
NEMO Tensor All-Season
An insulated air pad, R 5.4 and 3.5 inches thick, about a pound in the Regular size, with a pump sack and patches included. (REI) It is OutdoorGearLab's best overall pad (OutdoorGearLab) and CleverHiker's favorite; CleverHiker tested it to about 23°F with no leaks over more than 29 nights, found it a little quieter than Therm-a-Rest's NeoAir XLite NXT, and suggests adding a foam pad for very cold camping. (CleverHiker) OutdoorGearLab notes its thicker bottom fabric, since earlier Tensors had a reputation for punctures. (OutdoorGearLab) At home, it is more pad than a floor needs.
Check price on AmazonBudget insulated air pad
Klymit Insulated Static V
An insulated air pad that Klymit rates at R 4.2 and labels as an ASTM figure, 2.5 inches thick and 23 inches wide, now sold as the Insulated Static V Peak. (Klymit) GearJunkie named it the best budget backpacking pad, noting it inflates in about a dozen breaths and that side sleepers may want foam under it. (GearJunkie) Klymit also makes an Insulated Static V Lite and an uninsulated Static V; the uninsulated one is too cold for a floor or winter, so check the name before you buy.
Check price on AmazonHow we link here
Commission never picks
The buy links go to Amazon, and New World Survival earns a small commission if you buy through them, at no cost to you. Our top pick is also the least expensive pad on the page at list price, which earns us the least. Commission never decides a recommendation.
What owners actually say
Foam never lets anyone down. It just flattens and feels firm.
These patterns come from the Z Lite SOL's Amazon reviews (more than 4,000 ratings), REI reviews of the Switchback and Tensor, Trailspace and BackpackingLight owners, long-distance hikers' gear reviews, an overland forum thread on the MegaMat, and Reddit owner summaries, read November 9, 2026.
What owners rely on
Foam pad owners keep coming back to the same point: it cannot leak, it is cheap, and it lasts. Owners use the Z Lite SOL as a seat, a pad for a child or a dog, and the base layer under an air pad, and some describe pads beaten up but still in service. Amazon reviewers call it light, easy to carry, and reliable for the price.
The trouble spots
The most common complaint is that foam packs down with heavy use. A Pacific Crest Trail hiker found his flattened to about half its thickness after four months of near-nightly use, (Halfway Anywhere) and several BackpackingLight posters report the same with nightly use. (BackpackingLight) Next is firmness: side sleepers find it hard on hips and shoulders. Owners also mention bulk and moisture collecting in the dimples on cold nights.
The surprises
A pad used a few nights a year at home should see far less wear than those hikers report. One long-time BackpackingLight poster notes that flat, plain foam can last decades, while dimpled pads like the Z Lite flatten with nights of use. Several owners say a foam pad under an air pad is the warmest and most reliable combination they have tried, and nobody we read measured how much warmth a flattened pad actually loses.
Air pads draw different complaints. Tensor owners split on noise, a few report slow leaks, and one older-model owner got a replacement from NEMO for a gash. On an overland forum, several MegaMat owners described seam, leak, or internal-layer failures, mostly on the two-person version or under full-time nightly use, (Expedition Portal) while another owner reported about 90 nights in a year with no holes or valve trouble. (Adventure Taco) Owners of Klymit's Insulated Static V pads, mostly the Lite version, most often mention leaking valves, and some doubt the R-value; others report pads lasting many years and free valve replacements.
How they fail, and what they cost over time
Foam wears thin. Air pads leak.
Foam packing out
A foam pad does not fail all at once; it gets thinner where you lie. When yours is noticeably flatter at the hips and shoulders than at the ends, it has lost some loft. It still works as a base under another pad. Store it flat or folded, with nothing heavy on top.
Leaks and valves
An air pad's failure is a leak, from a puncture, a seam, or a valve. Carry the patch kit, and a foam pad under the air pad protects it and keeps you off the floor if it goes flat. Exped tells owners to store self-inflating mats unrolled with the valves open in a cool, dry place, and to clean them by hand, never in a washer or dryer. (Exped)
What the warranty covers
Therm-a-Rest's limited lifetime warranty covers defects but excludes normal wear and punctures. (Therm-a-Rest) NEMO's lifetime warranty excludes normal wear and will repair other damage for a fee. (NEMO) Klymit offers a limited lifetime guarantee excluding normal wear. (Klymit) Exped's is a 5-year limited warranty. (Exped) A foam pad flattening is normal wear, so plan to replace it rather than claim it.
Repairs
A small hole in an air pad patches at home, and every air pad here ships with a patch or repair kit. Exped publishes patch-kit instructions and a repair video. (Exped) A leaking valve or a seam failure on a new pad is a warranty question, so keep the receipt. A foam pad needs no repair kit at all.
The running costs
For a foam pad, none until you replace it, which at home may be many years. For an air pad, a spare patch kit now and then, and possibly a pump sack if one was not included. The bigger cost is choosing wrong: an expensive air pad bought for the house will spend most of its life rolled in a closet, where a foam pad would have done the job for a fraction of the price. Pair whatever you buy with a bag from our sleeping bag comparison.
What we didn't pick, and who should skip
Pads on their way out, and households that do not need one.
Therm-a-Rest NeoAir XLite NXT
A long-time expert favorite, R 4.5. On November 9, 2026, it was sold out in every size at Therm-a-Rest's store, (Therm-a-Rest) and one retailer said it had been discontinued. (CampSaver) Therm-a-Rest has announced a new NeoAir TrailMix, also R 4.5, for January 2027, without calling it a replacement. (Outdoor Industry Association) We will look at it when it ships.
Therm-a-Rest MondoKing 3D
OutdoorGearLab's top camping mattress, R 7. (OutdoorGearLab) When we checked, it was sold out at Therm-a-Rest with a waitlist. (Therm-a-Rest) The MegaMat is warmer on a cold floor and was in stock.
REI Co-op Campwell
A 2.5-inch self-inflating pad, R 7, which REI says was tested to ASTM F3340, for about half the MegaMat's price. (REI) CleverHiker slept on it at 15°F but steers side sleepers to thicker pads, and its test pad developed a pinhole at a seam. (CleverHiker) A good value if you shop at REI; it is sold only there.
Uninsulated air pads and air mattresses
Comfortable, but the wrong tool for cold. With no insulation inside, they can feel like a mattress and still sleep cold, and owners describe uninsulated air mattresses turning cold over a cold floor. (Outdoors Codidact) If you already own an air mattress, a foam pad under it is the inexpensive fix.
Skip a pad if you sleep in a bed
A mattress already insulates you from the floor. If everyone in the house will sleep in a bed during an outage, put the money toward blankets or a warm bag instead, and see our sleeping bag comparison.
Skip an air pad for the house
Air pads are built to save weight and space in a pack. On a floor at home, a foam pad gives a warm night for far less, cannot leak, and needs no care. Buy the air pad when you start carrying your bed on your back.
Where it fits in your readiness
The inexpensive layer that makes every blanket warmer.
A sleeping pad belongs to the Sustain tier, next to the sleeping bag: the gear that keeps a household sleeping safely through a disruption that lasts more than a night. It earns its place in a winter storm, an ice storm, and any long power outage in cold weather, and in the car when winter roads close. Most households need one foam pad per person before anything else on this page.
Power outage checklist
What to have ready before the lights go out, and what to do after.
Winter storm checklist
Blankets, sleeping bags, and layers for everyone before the storm.
Sleeping warm in a cold house
One room, insulation underneath, and no flame near the beds.
Sleeping warm in a vehicle
Pads, condensation, and carbon monoxide when the bed is a car.
Questions people ask
About sleeping pads.
Can you stack two sleeping pads?
Yes. REI says R-value is additive, so the R-values of two stacked pads add together, and it suggests a closed-cell foam pad under an air or self-inflating pad. Therm-a-Rest says the same of the Z Lite SOL: under another pad it adds R 2.0 and protects the upper pad from punctures.
Should the foam pad go under or on top of the air pad?
Under is the usual advice. Outdoor Life recommends the foam pad beneath the inflatable, where it guards against punctures and still works as a backup if the air pad leaks. A few people report feeling warmer with foam on top; either way, the R-values add.
Is an air mattress warmer than sleeping on the floor?
Not by much if it is uninsulated. Owners describe uninsulated air mattresses turning cold over a cold floor. Look for a stated R-value: the insulated pads on this page list R 4.2 to 8.1. A foam pad under an uninsulated air mattress is an inexpensive fix.
What R-value do I need for winter?
REI pairs nights around 20 degrees F with a pad of R 4 to 5.4, and nights near 0 degrees F with R 5.5 or more. Inside a cold house the floor is usually warmer than frozen ground, so by REI's table an R 2 foam pad under your bedding is a reasonable start; for winter camping, add a foam pad under an insulated air pad.
How should I store a self-inflating sleeping pad?
Unrolled, with the valves open, somewhere cool and dry. Exped gives that advice for the MegaMat and suggests under a bed. Therm-a-Rest gives the same advice for its self-inflating MondoKing and says mildew from damp storage is not covered by its warranty, so make sure the pad is dry before you put it away.