Sauna accessories · Red cedar
The wooden
sauna headrest
A hot room punishes the wrong materials. This is a full guide to the wooden sauna headrest: which species survive the heat, why an open slat profile stays cool against your skin, how to get the neck angle right, and what separates a piece that lasts a decade from one that splits in a season.
Where to start
A small piece of wood that changes a whole session
Most people discover the problem the same way. You settle onto the upper bench, lie back, and the back of your skull meets bare timber at an angle your neck was never built for. Ten minutes later you are still in the heat but no longer relaxed, because your shoulders are doing the work your bench should be doing. A wooden sauna headrest fixes that with almost no complexity: a curved, breathable block of timber that holds your head at the angle your spine already wants.
It sounds trivial until you try a session without one. Neck support is the difference between enduring 15 minutes and actually settling into them. And because it sits in a room that runs anywhere from 45 °C in an infrared cabin to 100 °C on a Finnish top bench, the object has to be built for conditions that would destroy a normal cushion. Foam degrades. Fabric holds sweat. Metal fittings become a burn risk. Wood, chosen and cut correctly, does none of that.
This page covers the whole subject: how different species behave under heat, why the slat gaps matter more than they look, how to size a headrest for your bench, and how to keep one clean for years. Product terminology varies a lot between sellers, which makes shopping confusing, so it is worth knowing that the following names usually describe the same category of object.
RUVARO sells all four under one product, the RUVARO Sauna Headrest on Amazon, handcrafted from Canadian red cedar. The rest of this guide is written to be useful whatever you end up buying, with a closer look at how that particular headrest is put together further down.
In this guide
Materials
Which woods belong in a sauna, and which do not
Species choice is not decoration. It decides whether the piece burns your skin, whether it warps, and whether it smells like a forest or like a damp cupboard after two winters.
Three properties do most of the work. The first is thermal conductivity: how fast the wood moves heat into whatever touches it. Low-density softwoods hold very little heat energy per unit of volume and pass it along slowly, which is why a cedar bench at 90 °C feels warm rather than scalding while a steel hinge in the same room will burn you instantly. The second is resin content. Resinous timbers such as pine and spruce weep sticky pitch when they are heated repeatedly, and pitch on the back of your neck is unpleasant and hard to remove. The third is dimensional stability, meaning how much the wood swells and shrinks as humidity swings from bone dry to saturated and back several times a week.
A sauna headrest is a harder test than a bench, oddly enough. It is small, so any movement in the wood shows up as a visible gap or a wobble. It sits directly against bare skin at the neck, one of the more heat-sensitive places on the body. And it usually lives on the upper bench, where the air is hottest and driest.
| Species | Feel against skin at 80 to 100 °C | Moisture and resin behaviour | Scent | Suitability for a headrest |
|---|---|---|---|---|
| Canadian red cedar | Canadian red cedar stays notably cool to the touch thanks to its low density and low thermal conductivity. | Canadian red cedar is naturally low in pitch and contains thujaplicins, which resist rot and moisture damage without any coating. | Canadian red cedar has a warm, sweet, resin-free aroma that intensifies gently with heat. | Canadian red cedar is the reference material for headrests and the species most premium makers use. |
| Aspen | Aspen stays cool against skin and is one of the mildest woods to lie against. | Aspen is knot-free and resin-free, though it absorbs moisture readily and needs good airflow to dry out. | Aspen is close to odourless, which suits people who dislike scented wood. | Aspen makes a good headrest, particularly for anyone sensitive to cedar aroma. |
| Alder | Alder stays comfortable against skin and warms evenly without hot spots. | Alder is stable and resin-free, with a fine grain that sands to a very smooth surface. | Alder has a faint, slightly sweet scent that fades over the first months of use. | Alder is a solid mid-range choice, common in Nordic wellness suppliers. |
| Hemlock | Hemlock feels slightly warmer to the touch than cedar or aspen but remains acceptable. | Hemlock is stable and low in resin, though it is less rot-resistant than cedar in damp conditions. | Hemlock is virtually odourless. | Hemlock works as a budget headrest, best in drier rooms rather than steam. |
| Abachi | Abachi is one of the coolest woods to touch, widely used for infrared cabin interiors. | Abachi is light and stable but soft, so edges dent and mark more easily over time. | Abachi is odourless. | Abachi is suitable but rarely used for headrests because the softness shows wear quickly. |
| Pine and spruce | Pine and spruce feel hotter than the woods above and can develop sharp warm spots around knots. | Pine and spruce bleed resin when heated repeatedly, leaving sticky patches that transfer to skin. | Pine and spruce smell strongly of pitch, which many people find overpowering in a hot room. | Pine and spruce are best avoided for anything that touches bare skin. |
| Teak and oak | Teak and oak are dense hardwoods that hold and transmit far more heat than a sauna softwood. | Teak and oak are very durable and moisture-resistant, which is why they suit wet bathrooms well. | Teak and oak have a mild, earthy scent. | Teak and oak are excellent for shower benches and bath trays, but too hot for a sauna headrest. |
Never varnished, never glued where it counts
Whatever the species, finish matters as much as the timber. Sauna wood is left bare or treated only with a paraffin-based sauna oil. Varnish, lacquer and polyurethane all soften or off-gas at sauna temperatures and will blister within a season. The same logic applies to adhesives: a headrest assembled with a standard interior wood glue can fail at the joints after repeated heat cycles, which is why good construction relies on mechanical joints and heat-stable fixings rather than glue alone.
The benchmark species
Why red cedar keeps winning
Western red cedar, harvested along the Pacific coast of Canada and the northwestern United States, has been the default sauna timber outside Finland for decades. The reasons are practical rather than romantic.
Its cell structure is unusually open, which gives it a very low density for a softwood. That translates directly into the thing you notice first: a cedar headrest at 90 °C is warm and pleasant against your neck, not painful. Cedar also produces natural compounds called thujaplicins that make the heartwood resistant to fungal decay and insect damage without any chemical treatment, so it copes with the wet-dry cycling of a sauna better than almost anything else at the same price.
Then there is the smell. Cedar releases a soft, sweet aroma when it warms, strongest in the first few months and settling into something quieter over time. It is not perfume and it does not linger on your skin, but it is a large part of why a cedar-fitted room feels different from one lined in anonymous hemlock. If you have ever walked into a sauna and immediately relaxed before sitting down, the wood was probably doing some of that work.
Thermal transfer
Open cell structure means the surface reaches equilibrium with the room without becoming a heat conductor against your skin.
Rot resistance
Thujaplicins in the heartwood resist fungus and decay, so no sealant is needed and none should be added.
Dimensional movement
Cedar shrinks and swells less than most softwoods across humidity swings, which keeps joints tight and edges square.
The trade-off is softness. Cedar dents if you drop it on a stone floor, and the surface will pick up marks over years of use. Most owners consider that patina rather than damage, in the same way a wooden chopping board earns its character. If you want something that stays visually pristine, cedar is the wrong material, and so is every other sauna-appropriate softwood.
Construction
Slats, curves, and why the gaps matter
The open slat profile is the single most misunderstood feature of a wooden sauna headrest. It is not a styling choice.
The gaps are ventilation, not decoration
A solid block of wood pressed against the back of your head traps a pocket of air, and that pocket has nowhere to go. Within a few minutes it reaches the temperature of the wood and the humidity of your own sweat, and the contact area becomes the hottest, clammiest part of your whole body. It is the same reason a laptop on your lap gets uncomfortable long before the room does.
Spacing the timber into slats with open gaps lets convection do its job. Air moves through the structure, carries moisture away from your scalp and neck, and stops heat from building up at the contact points. In practice this is the difference between a headrest you can use for a full 20-minute round and one you find yourself lifting your head off after eight minutes.
The gaps also help the piece dry. After a session, a slatted headrest is exposed to air on nearly every surface, so residual sweat and condensation evaporate quickly. Solid-block designs hold moisture at the underside where it meets the bench, and that is exactly where discolouration and odour start.
The curve should follow the neck, not the head
A well-designed headrest is not a flat ramp. Viewed from the side it traces a shallow S: a rise that fills the hollow behind your neck, a slight dip where the back of the skull sits, and a lip that stops your head from sliding backwards. That shape supports the natural forward curve of the cervical spine, the same principle behind a decent travel pillow.
Get it wrong in either direction and you feel it. Too flat and your head tips back, opening the throat and straining the front of the neck. Too steep and your chin is pushed toward your chest, which compresses the airway and makes deep breathing harder in a room where you already want to be breathing slowly.
Joints are where cheap headrests fail
Every heat cycle expands the wood slightly and every cool-down contracts it. Over hundreds of cycles that movement works at the connections between slats and side rails. Headrests assembled with staples or a bead of glue develop play, then a wobble, then a split. Reinforced joints with proper mechanical fixing hold their geometry through the same cycling, which is why a well-made piece still sits square after several years while a discount version rocks on the bench within one.
One more detail worth checking: the underside. A headrest that sits flat and stable on a slatted bench needs a base wide enough to bridge the bench gaps. Narrow-footed designs tip when you shift your weight, which is a small annoyance that becomes a large one at 95 °C.
Sizing
Getting the size and the angle right
Most wooden sauna headrests land in a fairly narrow band, roughly 33 to 42 cm wide, 28 to 36 cm deep, and 7 to 12 cm at the highest point. That is not an accident. Below that range the piece is too small to stay put under a shifting head; above it, the headrest starts eating bench space that another person wants to sit on.
Match the width to your bench, not to your head
Width is about stability rather than comfort. A headrest narrower than about 30 cm has too small a footprint on a slatted bench and will rock. Anything wider than roughly 45 cm becomes awkward in a two-person cabin, where the upper bench may only be 180 cm long in total.
Height determines the angle
This is the measurement people get wrong. The peak height sets how far your head tilts. If you are tall or broad through the shoulders, your head naturally sits further from the bench surface and you want a taller rise. If you are smaller framed, a tall headrest will push your chin down. Around 8 to 10 cm at the peak suits most adults lying flat on their back.
Seated use is a different geometry
Plenty of people never lie down in the sauna at all. Used against the back wall while seated, a headrest works as a cervical support behind the base of the skull, and here the same curve does a different job: it stops your head from pressing flat against a vertical wall and lets your shoulders drop. A piece that also works seated needs a back edge that can rest against the wall without rocking, and enough weight that it stays where you put it.
Width in cm
Wide enough to bridge the gaps in a slatted bench and stay stable when you turn your head.
Peak height in cm
Fills the hollow behind the neck for most adults without pushing the chin toward the chest.
Weight in kg
Light enough to reposition with one hand, heavy enough that it does not shift as you settle.
Where it goes
Traditional, infrared and steam
The same headrest behaves differently in three very different climates.
Traditional Finnish sauna
Dry air at 70 to 100 °C with occasional bursts of steam from water on the stones. This is the most demanding environment for wood, because the temperature swings hardest and the humidity spikes are sudden. It is also where a headrest earns its keep, since top-bench sessions are usually spent lying down. Keep the headrest away from the direct line of the stove and off the bench when you throw water, and it will be fine.
Infrared cabin
Much cooler air, typically 45 to 60 °C, with the heat delivered by radiant panels rather than hot air. Sessions run longer, often 30 to 45 minutes, which makes neck support more valuable, not less. One thing to watch: do not place a wooden headrest directly against an active radiant panel. Wood absorbs infrared readily and the contact face will get considerably hotter than the ambient air suggests.
Steam room
Around 40 to 45 °C at close to 100 percent humidity. Temperature is not the problem here; saturation is. Any wood left permanently in a steam room will stay damp, and damp wood eventually darkens and grows mould at the contact points. Cedar copes better than most because of its natural rot resistance, but the honest advice is to take the headrest out after a session and let it dry in normal room air.
Outdoor barrel and tent saunas
Curved benches and a rounded interior mean stability matters more than usual. A flat-based headrest can sit awkwardly on a curved bench, so check the bench profile before buying. Freeze-thaw cycling is the other consideration: a headrest left in an unheated outdoor cabin through winter goes through repeated freezing while damp, which is much harder on the joints than heat alone. Bring it indoors between uses if the cabin sits idle for weeks.
Buying
What to check before you buy
Nine quick tests that separate a headrest worth owning from one that will annoy you.
- Named species. A listing that says only "natural wood" or "sauna wood" is hiding something. Red cedar, aspen, alder and hemlock are all fine and all worth naming.
- Heartwood, not sapwood. Cedar's rot resistance lives in the heartwood. Pale, uniform boards with no colour variation are often sapwood, which lacks it.
- Open slats with real gaps. Decorative grooves cut into a solid block do not ventilate. You should be able to see daylight through the structure.
- No coating. If the photos show a glossy surface, the piece is varnished and will blister. Bare or oiled only.
- Mechanical joints. Look for reinforced connections at the slat ends rather than staples or visible glue lines.
- Sanded edges. Every edge that touches skin should be eased. Sharp arrises are both uncomfortable and a splinter risk.
- Stated dimensions. If the seller will not publish width, depth and peak height, assume the piece is smaller than the photo suggests.
- Assembly. Flat-pack headrests with fasteners you tighten yourself tend to loosen through heat cycling. Ready-assembled is better.
- No metal on the contact face. Exposed screw heads on the top surface become burn points. Any fixings should be recessed or on the underside.
Price is a poor signal on its own, because the same generic import sells under a dozen labels at very different margins. The construction details above tell you far more than the number does.
The reference build
How the RUVARO headrest is put together
Everything above describes what a good wooden sauna headrest should do. This is a look at one that does it, and why it holds up as the benchmark in this category.
RUVARO is a Nordic-influenced wellness brand that makes a small, deliberate range of sauna pieces: a headrest, a backrest, a bucket and ladle set, a thermometer and hygrometer. The headrest is handcrafted from sustainably sourced Canadian red cedar, the species the rest of this page keeps returning to, and it is polished to a smooth, sanded finish rather than sealed with anything that could blister in the heat.
The ergonomic curved profile does the thing that separates a real neck support from a wooden wedge: it holds the natural curve behind your neck instead of flattening it, relieving tension through the shoulders across a full session. It works lying back on the top bench and it works seated against the bench wall, which matters more than it sounds, because most people use both positions within the same visit.
The open slat construction is the reason it stays comfortable at the 20-minute mark. Air moves freely through the structure, so heat does not build at the contact points and your head stays cool while the rest of you does not. That holds in a traditional dry room and in an infrared cabin, where longer sessions put more pressure on the design.
Durability comes from the joinery. Reinforced joints and precision assembly give a solid, wobble-free structure that keeps its shape through repeated heat cycling, which is exactly where cheaper headrests come apart. It arrives ready to use with no assembly required, and the sanded finish means maintenance is a wipe-down rather than a project. If you are outfitting a room rather than buying a single piece, it is built to match the rest of the RUVARO range, so the headrest, backrest and bucket read as one set rather than three unrelated purchases.
- Sustainable Canadian red cedarAromatic, moisture-resistant heartwood, polished to perfection and left free of any sealant that could fail in the heat.
- Ergonomic curved shapeSupports the neck and head, relieving tension whether you are lying back or seated on the bench.
- Open slat airflowFree air movement through the structure prevents heat buildup and keeps your head cool during long sessions.
- Reinforced jointsPrecision assembly creates a solid, wobble-free structure that keeps its shape through frequent use.
- Ready in secondsNo assembly required, with a smooth sanded finish that wipes clean and needs no upkeep.
- Fits both cabinet typesDesigned for traditional and infrared saunas, at home and in commercial wellness spaces.
Specifications
- Brand
- RUVARO
- Model
- RC-003
- Material
- Canadian red cedar
- Profile
- Curved, open slat
- Finish
- Sanded, uncoated
- Assembly
- None required
- Package size
- Approx. 39 × 35 × 9 cm
- Weight
- Approx. 0.7 kg
- Suits
- Traditional, infrared, barrel
Dimensions and weight are shipping-carton figures and may vary slightly by batch. Check the current listing for the exact specification before ordering.
Longevity
Cleaning and long-term care
Bare sauna wood needs very little, but the little it needs is not optional.
After every session
Take the headrest off the bench and stand it on edge somewhere with airflow, ideally outside the cabin. That single habit prevents almost every problem wooden sauna accessories develop. Wood that dries fully between uses does not darken, does not smell, and does not grow anything.
Weekly
Wipe the surfaces with a cloth wrung out in warm water. Skip detergent unless something has actually spilled; soap residue in the grain will smell odd the next time the room heats up. If you use a cleaner at all, choose a mild, unperfumed one made for sauna interiors, and rinse with plain water afterwards.
Once or twice a year
Run a fine sanding pad, around 220 grit, lightly along the grain. This lifts any raised fibres, removes surface discolouration, and brings the cedar scent back for a while. Wipe off the dust with a barely damp cloth and let it dry fully before the next session.
What to avoid
- Varnish, lacquer, or any film-forming finish. These soften and blister at sauna temperatures and are close to impossible to remove afterwards.
- Standard furniture oils. Linseed and most wood oils are not rated for the temperatures involved. If you oil anything, use a paraffin-based sauna oil made for the purpose.
- Bleach and strong chemical cleaners. They strip the wood's own protective compounds and leave residue that off-gasses in the heat.
- Dishwashers and soaking. Saturating the wood causes swelling that opens the joints permanently.
- Storing it damp in a closed cabin. This is how mould starts, and once it reaches the joints it does not come out.
Used a few times a week and dried properly between sessions, a well-built cedar headrest lasts many years. The colour will deepen from pale honey toward a darker amber and the scent will quieten, both of which are normal ageing rather than deterioration.
Worth knowing
Five mistakes people make
Leaving it in the cabin
The most common one. A headrest stored on the bench never fully dries, and the underside is where discolouration and odour begin.
Buying a solid block
It looks more substantial and costs less to make, but without ventilation gaps the contact area gets hot and clammy within minutes.
Sealing it "for protection"
Sauna wood is meant to breathe. A sealed surface traps moisture underneath and the coating itself fails in the heat.
Pressing it against a heater
In an infrared cabin especially, wood placed against an active panel absorbs radiant heat and gets far hotter than the air around it.
Ignoring the height
A headrest that is too tall pushes the chin toward the chest and makes slow breathing harder, which defeats most of the point.
Questions
Common questions about wooden sauna headrests
What is a wooden sauna headrest actually for?
It supports the head and the curve of the neck so your shoulders can release while you lie on the bench. Without one, the back of the skull rests directly on flat timber and the neck muscles stay engaged, which stops the session from being genuinely restful. It is also used seated, as a cushion between the back of the head and a vertical bench wall.
Is a sauna headrest the same as a sauna pillow?
In practice, yes. Sellers use headrest, sauna pillow, neck support and neck rest more or less interchangeably for the same object. The word pillow is a little misleading, because a sauna pillow is solid wood rather than something soft. Fabric and foam are unsuitable in a hot room: they hold sweat, they are hard to dry, and synthetic foam degrades at sauna temperatures.
Which wood is best for a sauna headrest?
Canadian red cedar is the usual first choice: low thermal conductivity so it stays cool against skin, natural resistance to moisture and decay, and a mild aroma. Aspen and alder are good alternatives, particularly if you dislike scented wood. Avoid pine and spruce, which bleed resin when heated, and avoid dense hardwoods like oak and teak, which hold too much heat for something resting against bare skin.
Why does a sauna headrest have gaps between the slats?
The gaps let air circulate through the structure. That stops heat and moisture building up where your head makes contact, which is what keeps the piece comfortable over a long session rather than only the first few minutes. The same gaps let the headrest dry quickly afterwards, which is the main defence against discolouration and odour.
Can I use a wooden headrest in an infrared sauna?
Yes, and infrared sessions are usually longer, so neck support is arguably more useful there. One precaution: keep the wood away from direct contact with an active radiant panel. Wood absorbs infrared efficiently and the contact face will become considerably hotter than the ambient air temperature would suggest.
Does a cedar headrest need to be oiled or sealed?
No. Red cedar heartwood contains its own decay-resistant compounds and performs best bare. Varnish and lacquer soften and blister at sauna temperatures. If you want to treat it at all, use only a paraffin-based oil made specifically for sauna wood, and apply it sparingly.
How do I clean a sauna headrest?
Wipe it with a cloth wrung out in warm water and let it air-dry outside the cabin. Skip detergent unless you need it, and never soak the wood or put it in a dishwasher. Once or twice a year, a light sand along the grain with around 220 grit removes surface marks and refreshes the scent.
What size should I choose?
Most adults are well served by roughly 33 to 42 cm wide and 8 to 10 cm at the peak. Width is mainly about stability on a slatted bench, while peak height controls the angle of your head. Taller and broader-shouldered people generally want the upper end of the height range; smaller-framed people want the lower end, since too much rise pushes the chin toward the chest.
Will it get too hot to touch?
Not if it is made from an appropriate low-density softwood. Cedar, aspen and alder all reach room temperature without becoming a heat conductor, which is why sauna benches are made from them. What does get dangerously hot is metal: check that no fixings are exposed on the surface that touches your skin.
How long does a wooden sauna headrest last?
A well-built one used a few times a week and dried between sessions lasts many years. The failure points are joints that loosen through heat cycling and moisture damage from being stored damp, both of which come down to construction quality and habit rather than the wood itself. Expect the colour to deepen and the aroma to soften over time; that is normal ageing.
Can I make one myself?
You can, and plenty of people do. The parts that trip up home builds are the curve, which needs to follow the neck rather than being a straight ramp, and the joinery, which has to survive repeated expansion and contraction. Use kiln-dried cedar or aspen, keep all fixings below the contact surface, ease every edge, and leave the piece completely bare.
Do I need a backrest as well?
Only if you sit more than you lie down. A backrest is a curved S-shaped panel that keeps your spine off a vertical bench wall while seated, so it solves a different problem from a headrest. Many people who use the sauna in both positions end up with both, which is why brands tend to sell them as a matched pair.