Sauna Pillow: Sauna Products Explained

A sauna pillow solves the problem you only discover the first time you lie down in a sauna: benches are hard, hot, and exactly the wrong height for your neck. The fix costs £14–£45 depending on whether you go fabric, wood, or the hybrid of both — and unlike a bedroom pillow, it’s built from materials that survive 80–90°C and a soaking every session.

Here’s how the types differ, what they’re actually filled with, and current UK prices for the picks worth having.

The three types

• Fabric sauna pillows. Linen or cotton shells with natural or high-temp-tolerant fills, usually a squared-off bolster shape. Soft, light, packable — and the only kind you can use inside a sauna blanket, where a wooden headrest has no place. The trade-off: they absorb sweat, so the cover needs to come off and wash.
• Wooden headrests. Contoured slatted supports in aspen or alder — the lying-down cousin of the sauna backrest. Nothing to wash, nothing to go musty, stays put on the bench, outlives you. The trade-off: it’s wood; “soft” isn’t on the menu.
• The hybrid. A wooden headrest with a linen cushion on the contact surface — the Finnish compromise that most regulars land on eventually, because it keeps the wood’s stability and adds just enough give.

Named picks (prices checked July 2026)

All from Finnish-specialist UK retailer Finnmark Sauna — Rento, Luhta and Emendo are the brands you’d find in an actual Finnish sauna shop. Stock rotates (two Rento Kenno colourways were sold out when we checked), so compare current sauna pillow options on Amazon against the specialist prices before buying.

What to look for in a fabric pillow

• Shell material: linen (pellava) is the Finnish standard — it wicks, dries fast and tolerates decades of hot washes. Cotton is fine and cheaper. Anything polyester-faced gets clammy and hot against skin.
• Removable cover. Non-negotiable for hygiene: the cover comes off and hot-washes (no fabric softener — same rule as sauna towels).
• Fill: natural fills or simple high-temp foams sold specifically for sauna use. Bedroom memory foam collapses into a sad pancake within months of heat cycling — this is why “just bring a pillow from the spare room” fails.
• Size: the squared bolster shapes around 40×20cm support the neck’s curve when flat on a bench; oversized bed-pillow shapes push your head too far forward.

What to look for in a wooden headrest

Same rules as every timber accessory: aspen or alder (cool-touch, no resin), no metal fixings on the contact face, slats with drainage gaps, and a curve that cradles the base of the skull rather than a flat ramp. The reversible designs (like the Elsässer) double as footrests — elevating your feet on the top bench is an old Finnish trick for pulling more of you into the hottest air layer.

Where a pillow earns its place

• Lying-down sessions in any traditional cabin deep enough to stretch out — the single biggest comfort upgrade after the backrest.
• Sauna blankets, where your head rests on whatever surface the blanket is on — a linen pillow is the difference between a session and a chiropractic incident.
• Seat-cover duty: the flatter fabric pillows moonlight as a cushioned seat pad; proper linen seat covers (Luhta’s run £26.99) do that job full-time, per the buying guide.

The ones to skip

Two products share shelf space with proper sauna pillows and deserve a swerve:

• Inflatable “sauna pillows”. PVC air pillows marketed for saunas and hot tubs. In a hot room the surface turns clammy against skin, the vinyl ages fast through heat cycles, and a puncture ends it. They exist because they’re cheap to ship, not because they’re good in heat.
• Memory-foam anything. Foam’s comfort depends on its cell structure, and sustained heat plus sweat collapses it — the pillow that felt great in week one is a dense pancake by month three. Bedroom technology doesn’t survive sauna physics.

The materials that do survive are the same boring, brilliant ones as the rest of the kit list: linen, cotton, wool and wood.

Technique: getting the angle right

A sauna pillow is only as good as where you put it:

• Lying flat: the pillow goes under the neck’s curve, not stacked under the skull — you want your face parallel with the ceiling, not chin-to-chest. The squared bolster shapes are that height for a reason.
• The knee trick: a second fabric pillow (or a backrest laid flat) under the knees takes the arch out of the lower back on a hard bench — the difference between lying down for five minutes and staying for fifteen.
• Seated: a fabric pillow behind the lumbar curve turns flat panelling into something you can settle against where a full backrest doesn’t fit — the small-sauna solution.
• In a blanket: pillow outside under the head end, never inside the blanket where it soaks heat and sweat it can’t shed.

Care

Hang the pillow to air after every session — never leave it flat on a warm damp bench, which is how mustiness happens. Covers hot-wash regularly; fills air out monthly. Wooden headrests just get the plain-water rinse and ventilated dry the rest of the timber kit gets. Do that, and the fabric pillow lasts years and the wooden one forever.

The bottom line

£13.99 gets you a Rento fabric pillow that fixes lying-down sessions; £27.90 gets the wooden-plus-linen hybrid that will still be in your sauna in twenty years. Either is a smaller outlay than a single massage and improves every session after it. Kit priorities beyond the pillow are ranked, with prices, in the accessories buying guide — and if you’re still deciding what sauna the pillow goes in, start with the types of sauna guide.