How to make a camping cot more comfortable

Diagnose it first — there are only four problems

“The cot is uncomfortable” is almost always one of these, and they need different answers.

1. It sags in the middle. The deck fabric has stretched, or it was never tensioned properly. The hammock shape pushes your shoulders in and your hips down.
2. Something hard is under your hip or shoulder. A centre support bar, a side rail, or an end bar you are lying over. Disc-O-Bed built its whole product line around removing the centre bar, which tells you how common this complaint is.
3. You are cold from below. The most misdiagnosed one, because it feels like discomfort rather than cold. Air moves freely under a cot deck.
4. The deck is too narrow or too short. A 26-inch deck is 26 inches whatever you put on it. See our cot size guide for the full range.

The free fixes

1. Re-tension the deck. Most cots tension by forcing the last end bar into place, and most people do not get it fully home. TETON builds a patented pivot-arm lever onto the Outfitter XXL specifically because that last bar is hard to seat. Take the cot down and set it up again, properly, with the lever or with your foot braced against the frame. A taut deck is a different bed from a nearly-taut one.
2. Find out where the bars are and sleep between them. Lie on the empty cot and press along it with your hand. Many cots have one centre support — ALPS's Escalade XL publishes an extra telescoping centre support, which is good for load and bad for a hip on top of it. Shifting your sleeping position six inches is free.
3. Turn around. Cot decks are rarely symmetrical, and the head end frequently has a crossbar where your shoulders land. Swapping ends costs nothing and fixes it surprisingly often.
4. Level the cot. On soft ground a cot's feet sink unevenly, which tilts the deck and makes the sag asymmetrical. Flat rigid pads under the feet solve it — the same arithmetic as stopping a camp chair sinking in grass.
5. Use the sleeping bag unzipped, as a quilt, with something under you. Insulation under your body is compressed and does almost nothing; insulation over you works fully. Moving loft from underneath to on top is free warmth.

The pad, which is the real fix

A cot deck is a tensioned sheet. However taut it is, it has no thickness, so every pressure point on your body — hip, shoulder, heel — is pressed into a hard plane. A two-inch self-inflating foam pad gives those points somewhere to go, and it is the one change that makes a cot feel like a bed rather than a stretcher.

Thickness is the first number to read and R-value the second. The pads that work on cots run 2 inches (Therm-a-Rest BaseCamp, ALPS Flexcore XL, TETON Universal XL) to 4.25 inches (Therm-a-Rest MondoKing 3D). Two inches is enough to solve pressure points; four inches is what you want if you are a side sleeper or you have a hip that complains.

Sizing the pad to the deck

Match the pad width to the deck width within an inch or two. Too narrow and it wanders; too wide and the edges fold up and roll you toward the middle, which is exactly the sag you were trying to fix.

The common pairings: a 26-to-28-inch deck (Helinox Cot One, ALPS Ready Lite) takes a 25-inch pad; a 30-to-33-inch deck (Coleman ComfortSmart, Coleman Pack-Away) takes a 30-inch pad like the Flexcore XL, the BaseCamp XLarge or the MondoKing XXLarge; a 35-inch-plus deck (TETON Outfitter XXL, Disc-O-Bed XL and 2XL) takes TETON's 82 x 38-inch Outfitter XXL pad, which is the only pad we score that is purpose-built for a cot — it has slip-resistant loops and straps that attach to the cot's end bars.

The cold underneath

Worth repeating because it is the problem people least expect. No cot maker in our registry publishes an R-value, because a cot provides no insulation — it replaces conductive heat loss into the ground with convective heat loss into moving air. TETON's own guidance is explicit that air moving under a cot can pull warmth away as effectively as direct ground contact.

The pads do publish R-values: TETON's canvas camp pad is 5.5 (Universal XL) and 6.2 (Outfitter XXL), Therm-a-Rest rates the BaseCamp at R 6 and the MondoKing 3D at R 7, and ALPS rates the Flexcore XL at 2.9. Those bands and what they mean by season are in camping mattress R-value explained, and the wider set of warmth tactics — blocking the draught, what to wear, where to pitch — is in how to stay warm on a cot.

Four pads that fit a cot

Getting the most out of the pad

• Inflate a brand-new self-inflating pad fully and leave it 2 to 4 hours before first use. Therm-a-Rest's own instruction. It helps the foam recover its loft properly for the rest of its life.
• At camp, open the valve and walk away for a few minutes. Let the foam do the work, then add a couple of breaths at the end for firmness. You get a better, more even result than blowing it up from flat.
• Store it unrolled and inflated with the valve open, somewhere dry. Also Therm-a-Rest's own instruction, and the single biggest factor in how long a self-inflating pad keeps its thickness. A pad stored compressed in its sack for eight months loses loft permanently, and Therm-a-Rest notes that prolonged storage somewhere damp can cause mildew damage its warranty does not cover.
• Keep the repair kit with the pad, not in a drawer at home. ALPS ships a repair kit with the Flexcore, Therm-a-Rest sells Instant Field and Permanent Home kits plus a WingLock valve kit, and Exped sells a field repair kit. Leak repair is covered in how to fix a camping mattress leak.
• Let out a third to half the air in the heat of the day if the pad is sitting inflated in a hot tent — Therm-a-Rest's guidance, to stop heat expansion stressing the seams.

When the cot is the problem, not the setup

Three cases where no pad will save it. A deck that is too narrow — 26 inches is 26 inches. A deck whose fabric has stretched past tensioning, which is a parts question: TETON sells the cot top fabric bed, Disc-O-Bed sells 35 and 40-inch mats, ALPS sells a Ready Lite bed replacement and Helinox sells a Cot One replacement sheet, while Coleman's consumer care told us its cot canvas is not sold separately. And a cot whose centre bar sits exactly under your hip with no room to move, which is what Disc-O-Bed's no-centre-bar design exists to solve.

If you are replacing rather than fixing, the ranked options are in best camping cots, cots for side sleepers and cots with a mattress. The parts and spares picture across every brand is in cot replacement parts.