Wool Sleeping Pad vs Foam and Inflatable Pads

People ask me all the time whether a wool sleeping pad is worth it against a closed-cell foam pad or an inflatable. My honest answer is that I use both: a wool sleeping mat at home, in the tipi and at any fixed camp, and a foam pad when everything rides on my back. This article puts the three side by side, explains the grounding question that pushed me toward foam on the trail, and tells you which thickness of wool felt does what, from a wool camping mattress on a cabin floor to a thin pad on a ground cloth.

Why I sleep on a wool sleeping pad at camp and foam on the trail

The question that started this for me was grounding. The earth carries a mild negative charge, and from what I have read, contact with it appears to improve sleep and calm the nervous system. So when I looked at pictures of a synthetic insulated mattress under a wool sleeping bag, the obvious question arose: doesn’t that plastic layer cut you off from the earth?

Then I bought a tri-field meter. There is another factor: the dirty electricity from the man-made power grid, which is sent into the ground. An ideal reading would be under one volt per meter. I have found it high even in remote mountain places, and most areas in the US run well above ideal. Because of that, I am not so sure grounding into the earth is even the wisest thing. It depends on where you are and who you are. Some EMF-sensitive people do better on an insulated synthetic pad so they are not grounding to the earth at all.

The science here is complex and there are several opinions, so I hold mine loosely. My practice: when backpacking, a closed-cell foam pad, leaves piled up, or both. Get away from the ground a little bit; you are still within Schumann’s resonance close to it, with negative ions from the trees and the mist off the creek. If I want more contact, I let my feet hang off the end of the pad onto the ground.

When I am not backpacking, in a more permanent setup, I use the natural wool pad, on a wooden platform when I am in the tipi. That is how I slept through three winters of the tipi experiment, and it is still how I sleep at home.

Wool sleeping pad vs closed-cell foam vs inflatable

Figures for the wool pad are for the Lucky Sheep® organic wool sleeping pad. For foam and inflatables I describe what I have found using them, not any brand’s numbers.

	Wool felt pad	Closed-cell foam	Inflatable
What it is	Dense US wool felt (Eco Wool) in a removable organic cotton cover; no foam, no coatings	A slab of synthetic foam	An air chamber in a synthetic shell, often with synthetic insulation inside
Weight and packed size	¼ in single layer: 32 oz at 24 × 76 in, folds to about 6 × 12 × 12 in. Thicker pads are for camps you drive to	The lightest thing you can put under you; rolls and straps outside the pack	Packs smallest of the three
When it gets damp	Wool takes moisture vapor into the fiber and gives back a little heat as it does; the surface stays comfortable, but the felt will hold water, which is why I do not carry it far	Does not absorb water; clammy against the skin, dries instantly	Shell does not absorb; internal insulation can get wet from breath if you inflate by mouth
Feel	Firm and even, the surface I describe in sleeping on a hard surface	Thin and hard; you feel roots	Soft and bouncy; some people love it, some roll off
Failure	Nothing to puncture; felt does not compress permanently	Nothing to puncture; edges crumble with age	Valves, seams and pinholes
Noise	Silent	Quiet	Crinkles with every turn
Off-gassing	None: wool and cotton	A new-foam smell that fades	A new-plastic smell that fades
Between you and the earth	Natural fibers only	An insulating synthetic layer, which may be exactly what you want (see above)	Same
Care	Cover unzips and machine washes; felt airs in the sun	Wipe down	Wipe down
Price	$150–1,100 by thickness and width	The cheapest pad there is	Mid to high

Read the weight row honestly. The single-layer wool pad is heavier than foam and heavier than most inflatables, and on a long trek that is a real cost. What the weight buys is a surface that cannot fail, makes no sound, has no smell, is warm to the touch the moment you lie down, and behaves like bedding rather than equipment.

Is a wool sleeping pad warm enough for backpacking?

Warmth is not the problem. Weight and moisture are. Wool may absorb moisture and therefore does not lend itself to backpacking, and an insulated foam pad reduces your pack weight versus a wool pad. Always keep your overall pack weight in mind when choosing gear.

So my backpacking sleeping bag and pad are the Rewilder wool sleeping bag over a closed-cell foam pad on a silnylon ground sheet. Foam is synthetic, but it is the only thing I know of to date that is really practical for carrying. In the old days they would have used a hide with the fur on, which is close to a felted wool pad.

If you do want the wool surface on the trail, the ¼ in pad folds into the back panel of our 65 L canvas backpack as its frame, so it earns its place twice. Some people carry it on top of a foam pad: the foam takes the cold ground and the wool gives you the surface.

Which wool sleeping mat thickness for which trip

The pad is sold by the number of felt layers, which sets both warmth and weight. Widths run from 24 to 60 in.

• ¼ in, one layer. The thin pad: 32 oz at 24 × 76 in, in a beeswax cotton twill outer. A pack frame, a summer ground pad on a ground cloth, or the top layer over foam.
• ¾ in, three layers. Camps you drive or paddle to, tipi floors, and the floor at home for people who want a firm surface with a little forgiveness. This is the one on my tipi platform.
• 1.5 in, six layers. Winter basecamp, cabins, and the most popular thickness for a full-time floor bed or a mattress replacement on a slatted frame.

Can a wool pad replace a camping mattress?

Yes, and for me it replaced the mattress at home too. What mattress makers call firm does not come close to a traditional Japanese futon; what works, from my own testing and from interviewing people, is one to two inches of compressed padding on a floor or board. The 1.5 in pad is exactly that: it will not let the hips sink in and misalign the spine, yet it buffers the bones.

Put it on a slatted platform or a tatami-style frame so air moves underneath; that keeps the felt from getting damp with your own perspiration. In a permanent camp the same idea is a bed frame of even-diameter limbs, which the Native Americans practiced.

People looking for a wool camping mattress or an organic camping mattress are usually looking for this: a wool camping mat for a cabin, a truck bed or a tipi that comes indoors as the bed for the other eleven months. The cover goes in the washing machine, so one pad does both jobs for decades.

An organic, non-toxic sleeping pad: what is in it and what is not

The felt is dense US wool (Eco Wool), nothing else, in an organic cotton canvas cover. There is no foam, no polyurethane, no coating and nothing to off-gas in a hot tent or a closed bedroom.

That matters more to me than to most people; an organic wool sleeping pad was one of the first pieces I made for myself. If you are looking for an eco friendly sleeping pad or a natural sleeping mat because something in the synthetic ones bothers you, this is it.

Part of the Lucky Sheep® Sleep System

We approach the bed a little differently. Tarp above. Waterproof barrier below. Under your body, a wool felt pad at camps where weight is not the first consideration, or a wool felt bedroll folded double; the felt blanket makes a quick pad on a cot or a truck bed. Around you, the Rewilder. Air moving through everything.

Protection where you need it, ventilation where you want it, and wool where moisture and temperature regulation matter most. We are not opposed to modern materials when they solve a specific problem well; the foam pad on my back is proof.

Who should not buy a wool sleeping pad

If your priority is the lightest possible pack, an inflatable or foam is the right tool and a wool pad will frustrate you. If you want a pad you can strap to the outside of a pack and forget, buy foam. I do.

The wool pad is for people who sleep on the floor at home and want the same surface outdoors, who camp in damp places where everything else gets clammy, or who want a bed with no foam and no smell. For them there is no substitute I know of.

What I would tell you

Try the floor at home first. If a firm wool surface gives you the deep, refreshed sleep it gives me, you will know within a couple of weeks, and the question of what to put under you at camp answers itself. Foam for the miles, wool for the nights that matter. Use whatever tools work for you.

Real fibers for real conditions.

Reviewed September 2026 by the Lucky Sheep® team.