Cots vs sleeping pads: why so many cot sleepers end up using both

The verdict

On durability, both sides have a buy-once option. TETON backs its cot with a limited lifetime warranty and sells the canvas top and legs as parts; Therm-a-Rest backs the BaseCamp with a limited lifetime warranty and sells a do-it-yourself valve kit. Those two score 8.5 (cot rubric) and 8.1 (mattress rubric) on our Built-to-Last Score, the top cot and the top-scoring sleeping pad we rate. The rubrics weight different things, so compare each score within its own category. Every cot we score is in the camping cots hub.

Cot vs sleeping pad at a glance

Every figure in that table comes from the maker pages listed in our sources, read on 2026-09-22. The Z Lite SOL and MegaMat Max aren't compared below; they mark the ends of the range.

The specs, side by side

Warmth: the pad's job, even on a cot

R-value is what separates these two products. NEMO defines it as “a measurement that reports how much a sleeping pad resists or prevents heat from flowing from a warm body and down to the ground,” and the ASTM F3340 standard means pads from different makers are rated the same way. Cots aren't rated at all. A cot's bed is a sheet of fabric with open air beneath it, and TETON, maker of the cot we rank first, says what that means: “A cot lifts you off the ground, which helps, but air still moves freely underneath you all night, and that airflow can pull warmth away just as effectively as direct ground contact.”

Your sleeping bag doesn't fill that gap on its own. Therm-a-Rest explains why for the ground, and the same logic applies to a cot: lying on a bag with nothing under it, “the compressed down would fail to create an insulative layer.” The fill under your back is crushed flat by your weight. That's why TETON's answer to “Do you need a pad if you're sleeping on a cot?” is “yes, especially once temperatures drop.”

On the pad side, the numbers are simple to use. Higher is warmer, and NEMO notes that “R-Value is additive, which means that you can use two pads and add their R-Values together.” How much you need depends on the season, and makers draw the lines differently: Sea to Summit suggests 0 to 2 for summer and 4 or more for winter, while TETON puts its R 5.9 to R 7 pads in the cold-weather slot. Our camping mattress R-value guide lays out those bands and which pads in our registry meet them.

Durability, warranty and parts

Both sides can be bought once, if you pick the right maker. On the cot side, TETON rates the Outfitter XXL to 600 lb, builds the bed from 600D canvas and covers it with a limited lifetime warranty; when the canvas eventually goes, TETON lists the cot top, end bars, side rails, legs and feet as spare parts. Helinox rates the Cot One Convertible to 320 lb, covers it for 5 years and sells a replacement sheet for it; a broken pole goes through its warranty team rather than a parts store.

A pad's weak points are its shell and its valve. Therm-a-Rest covers the BaseCamp with a limited lifetime warranty that excludes “Normal wear, puncture, abrasion, misuse, alteration and abuse,” but it sells a WingLock Valve Repair Kit (“The do-it-yourself kit for replacing a high-performance WingLock valve”) plus patch kits, and it may repair uncovered damage “for a reasonable fee.” That's why the BaseCamp scores 10 of 10 on our repairability scale. Exped covers the MegaMat for 5 years, includes a repair kit in the box and sells a Field Repair Kit, but lists no replacement valve; it says failures from normal wear “can usually be repaired for a nominal charge” in its own workshops.

Height, ground and comfort

Height is the cot's clearest win. The TETON's 19.5-inch set-up height means you sit down onto it and stand up from it instead of climbing off the floor. The Helinox is a different kind of cot: at 6.5 inches it's a low, backpacking-style cot unless you add Helinox's separately sold leg extensions, which raise it to 15 inches. A pad keeps you at floor level plus its thickness, 2 inches for the BaseCamp and 10 cm (3.9 inches) for the MegaMat.

The ground under you matters differently. A cot's bed is stretched between two rails, so a root or a rock under the cot never touches you; what matters is that its legs stand level. A pad lies on whatever is under it, so you clear the site more carefully, and a thicker pad hides more of what you missed. Surface size favors the big cot: the TETON is 80 x 35.5 inches, against 77 x 25 inches for the BaseCamp Large and 77.6 x 30.3 inches for the MegaMat LXW. The Helinox is the narrowest bed here at 26 inches.

Weight, packed size and the tent

This is the pad's clearest win. The BaseCamp Large weighs 3 lb 6 oz and rolls to 26 x 9 inches; the MegaMat LXW weighs 5.7 lb and rolls to 31.1 x 9.8 inches. The TETON cot weighs 26 lb and packs to 45 x 7.5 x 13 inches, so it lives in the car. The Helinox Cot One closes most of the gap at 4 lb 9.5 oz and 21 x 6 x 5.5 inches packed, and it has its own head-to-head in our Helinox Cot One vs Cot Max comparison. But a light cot still needs a pad on a cold night, so the real comparison is cot plus pad against pad alone.

Then measure the tent. The TETON takes 86 x 45 inches of floor set up, and at 19.5 inches it lifts you closer to the roof, so check the peak height in a low tent. A pad takes only its own footprint and adds no height.

Why many cot sleepers use both

The case for both is the case for each, added together: the cot's height and clearance, the pad's R-value. TETON's own guidance is that “In mild summer weather you can often get away without one, but any time there's a real chance of a cold night, a cot with mattress support is worth packing.” If you camp across seasons, that covers most trips.

Three things decide whether a pad works on your cot. First, it has to fit inside the bed. The BaseCamp XLarge (77 x 30 inches) and the MegaMat LXW (77.6 x 30.3) both fit within the TETON's 80 x 35.5-inch surface. On the Helinox's 75 x 26-inch bed, the BaseCamp Regular (72 x 20) fits within the bed, while the Large (77 x 25) is 2 inches longer than the cot. Second, it has to stay put. TETON recommends attaching its Canvas Camp Pad “to the top and bottom bars of your cot ... with the included straps,” and ALPS builds a two-layer sleeve into its Ready Lite Cot that holds an air pad up to 2 inches thick. Third, count the weight together: the TETON plus a BaseCamp XLarge is 30 lb, while the Helinox plus a BaseCamp Regular is 7 lb 1.5 oz.

Our best cot pads rank the pads that suit a cot, sized and scored on the same rubric, and our guide to staying warm on a cot covers the rest of the layering, from a closed-cell under-layer to your sleeping bag.

Buy a cot, a pad, or both

Buy a sleeping pad alone if

• You carry your bed on your back, or your tent is too small or too low for a cot.
• You want the warmest night per pound: the BaseCamp is R 6 at 3 lb 6 oz.
• You're comfortable getting up from the floor.

Buy a cot alone if

• You camp on mild summer nights, when TETON says you can often skip the pad.
• Getting up off the ground is the hard part of camping; the TETON is 19.5 inches high.
• Your sites are rocky, rooty or wet, and you drive to them.

Buy both if

• You want the cot's height and any real chance of a cold night is in the forecast.
• You camp across seasons with the same bed.
• You want each part to be repairable: TETON sells cot parts, Therm-a-Rest sells BaseCamp valve and patch kits.

If you're weighing a pad against a thick camp mattress for the ground instead, start with our best camping mattresses; if the other option on your list is an air bed, read our cot vs air mattress comparison. The full cot ranking is in our best camping cots, and how we score each product is on our methodology page.