Camping Cot, Air Mattress or Sleeping Pad: Which One Belongs in Your Tent
Every camper eventually asks the same question at two in the morning: why is the ground so hard, and why is it so cold? The answer is almost never the sleeping bag. It is the bed underneath it, and the three common choices (a cot, an air mattress and a sleeping pad) solve different problems. Picking the wrong one is how a comfortable bed turns into a cold night.
Quick Answer
A cot lifts you off the ground and is easy to get out of, but it gives you no insulation underneath, so it needs a pad on top in cool weather. An air mattress adds cushion and a little separation from the ground, and its thickness is comfort rather than warmth. A sleeping pad is the only one of the three built around insulation, which is measured by R-value. None of ARWE's cot or mattress listings states an R-value, so treat them as comfort layers for mild weather, and add insulation when nights turn cold.
01Three Ways to Get Off the Ground
The three options are often treated as interchangeable, and they are not. Each one trades something for something else, and the trade that matters depends on the weather and on how far you carry it.
| Option | What it gives you | What it costs you | Suits |
|---|---|---|---|
| Folding cot | Height off the ground, a firm flat surface, easy entry and exit | No insulation underneath, more bulk, a larger tent footprint | Drive-in sites, mild weather, anyone who struggles with floor-level sleeping |
| Air mattress | Cushion and a layer of separation from uneven ground | Comfort rather than warmth, a valve that can fail, a need to inflate | Car camping and mild-weather trips, with the ground prepared first |
| Sleeping pad | Insulation rated by R-value, plus cushion | Usually thinner and firmer than a mattress | Cool nights, shoulder season, and anything you carry |
The rest of this guide goes through each choice, and the honest limits of the ARWE listings for each.
02The Cot: What It Does Well, and the Cold Catch
A cot solves problems the other two do not. You sit on the edge to pull your boots on instead of crawling out of a bag, your back sees a flat surface regardless of roots and rocks, and the space underneath becomes storage for boots and a bag.
ARWE's Folding Camping Cot has an expanded surface of 187 × 60 cm at about 13.5 cm off the ground, in PU-coated 600D Oxford cloth on a frame of aluminium-alloy and nylon parts with five support frames and two side bars. It packs to a listed 55 × 14 cm. That packed size is the cot's answer to its main drawback, which is bulk.
The cold catch
A cot raises you above the ground but it does not insulate you from the air. Cold air circulates underneath, and your body weight compresses your sleeping bag against the fabric, which leaves the bag with nothing to insulate on the underside. The ground is not the only thing that pulls heat out of you. Moving air under a cot does it too. In cool weather, put an insulated pad on top of the cot, not instead of it.
Critical Safety
The listing states that the cot's approved maximum load should be confirmed before first use. Check that figure before you rely on it, assemble it as the supplied instructions direct, make sure every support frame is fully seated, and never jump or stand on it. Stop using it if any bar, joint, fabric panel or seam is damaged.
03Inflatable Mats: What the Listings Tell You
ARWE carries several inflatable options. Their supplier-listed numbers are useful for fit, and they are also honest about what they leave out.
| Mat | Size (listed) | Thickness | Worth knowing |
|---|---|---|---|
| Single automatic-inflation mattress | 165 × 50 cm, plus a 60 cm wide pillow section | 5 cm | 550 g, packs to 23 × 8 cm, pillow built into the head end |
| Single TPU and nylon mat | (165 + 25) × 58 cm, about 190 cm long | 5 cm | Listed for mild-weather use |
| Two-person TPU and nylon mat | (165 + 25) × 118 cm | 6 cm | A compact shared width, listed as a moisture-proof cushion |
| Double air mattress with built-in foot pump | Check the product page | Check the product page | Built-in inflator, sold with twin pillows |
Two details deserve attention. On the automatic-inflation mattress, the 165 cm length includes the 25 cm pillow section, so taller campers should measure before ordering. And on the single TPU mat, the listing recommends mild-weather use, which is the supplier's own signal that this is a comfort layer rather than a cold-weather one.
04Thickness Is Not Insulation
This is the point that catches most buyers. A thicker mattress feels more comfortable, and it is natural to assume it is also warmer. It is not a safe assumption. An air-filled chamber can move air inside itself, which carries heat away from you, and the thickness of the chamber tells you nothing about how well the pad resists that.
The measure that does is R-value, the pad's resistance to heat flow. Higher numbers insulate better, and our guide to sleeping pad R-value explains how to match one to the season. None of the ARWE cot or mattress listings states an R-value. That is not a flaw in the products, which are described as mild-weather comfort layers, but it means you cannot compare them with a rated pad on warmth, and you should not assume they will keep you warm on a cold night.
Field Note
If the nights are cool, the cheapest upgrade is almost always a closed-cell foam pad under or over whatever you already own. It cannot leak, it needs no inflation, and it adds insulation that a cot or an air mattress lacks. Our guide on how to stay warm while camping covers the whole sleep system in order of what helps most.
05Fit: Length, Width and Your Tent Floor
Measure three things before you buy: your height, your shoulder width, and the floor of your tent. A 187 cm cot or a 190 cm mat leaves little margin for a tall sleeper, and a cot in particular takes up a fixed rectangle that cannot bend around the tent's walls.
- Compare the listed length with your height plus a hand's width
- Check the width against your shoulders and any bag you use
- Measure the tent floor, allowing room to move around the bed
- Remember a cot adds height, so check the tent's wall slope
Our camping tent buying guide covers how floor area and wall shape decide what actually fits inside. For a vehicle-based trip, our car camping setup guide explains where a bulky bed sits in the layout.
06Sleeping as Two
Two people on a shared surface trade comfort for warmth. Shared body heat helps, and movement on one side is felt on the other. The two-person mat is 118 cm wide, which is a compact shared width, so compare it with your sleeping bags and your preferred personal space before you choose it for an overnight trip. If you both need room, two single mats side by side often sleep better than one double.
Pairing a double mat with a double sleeping bag works for a couple at a drive-in site, where the bulk costs nothing and the shared warmth is a real advantage. Our guide to sleeping bag temperature ratings explains how to read the numbers on a bag before you trust them.
07Care That Stops Mid-Trip Failures
Most mid-trip failures are preventable, and they share the same handful of causes. The care notes on the listings agree with each other, which is a good sign that they are the ones that matter.
- Clear stones, thorns and branches before laying out a mat
- Inflate gradually and stop before the mat is rock hard
- Check that the valve is clean and fully sealed before use
- Keep every mat away from flames, stoves and heaters
- Dry a mat completely before packing it away
- Test-inflate any mat at home before a trip
One more, from the cot listing: its PU coating resists light moisture but is not a substitute for a groundsheet in wet conditions. Put a groundsheet or a tent floor under it on damp ground.
08Frequently Asked Questions
Is a cot warmer than sleeping on the ground?
Not by itself. A cot lifts you off the ground but leaves cold air circulating underneath, and it gives no insulation. In cool weather, add an insulated pad on top of the cot.
Does a thicker air mattress keep you warmer?
Not reliably. Thickness gives comfort, and warmth depends on the pad's R-value, which describes how well it resists heat loss. The ARWE mattress listings do not state an R-value, so treat them as mild-weather comfort layers.
Which is best for a car camping weekend?
In mild weather, any of the three works, and the choice comes down to comfort and how much you want to carry. A cot suits anyone who dislikes getting up from the floor. A mattress packs smaller. In cool weather, add insulation to whichever you choose.
Can I use a cot and a mattress together?
Yes, and it is a common setup. A cot provides height and a flat base, and a pad or mattress on top provides insulation and cushion. It is also the fix for a cot that feels cold underneath.
How do I stop an air mattress from going flat overnight?
Check the valve is clean and fully closed, inflate gradually rather than to maximum, clear sharp objects from the ground first, and test-inflate at home before a trip so a slow leak shows up there and not at the campsite.
A good night is decided by what is under you, not over you.
ARWE · FIELD JOURNAL
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