Why Sitting on a Towel Is Standard Sauna Etiquette

Why a towel on the bench matters

Saunas are hot, humid environments where the body produces more sweat than usual. Cleveland Clinic notes that the dry heat of a sauna causes the heart rate to rise and stimulates sweating, which is part of why the experience feels cleansing. But that sweat does not disappear when it leaves your skin: it ends up on whatever you are sitting on. Without a towel, your bare skin presses directly against the wooden bench, transferring moisture, salts, and body oils into the wood grain.

Wood is porous. Once sweat and oils soak into a bench, they are difficult to remove fully. Over time, the wood darkens, develops odors, and can harbor bacteria. A towel creates a clean, washable barrier between your body and the bench, which is why it is the norm in Finnish saunas and in nearly every public bathery worldwide.

The same logic applies to what to wear in a traditional sauna: the less direct skin contact you have with the room surfaces, the more hygienic the experience is for everyone.

• Sweat and oils soak into untreated wood quickly
• A towel keeps the bench dry and clean for the next person
• Without a towel, body fluids gradually break down the wood surface
• Towel use reduces the need for deep cleaning between sessions

Bench protection starts with a simple layer

A sauna bench is not finished with paint or varnish. The wood is left bare so it can absorb heat and release it gently, and so that it does not off-gas chemicals at high temperatures. That bare surface is exactly what makes it vulnerable. Sweat and oil are absorbed more readily than on a finished surface.

Finnleo, a sauna manufacturer, warns that carpet absorbs sweat and odors and should never be used in a sauna. The same principle applies to benches: porous material that soaks up moisture becomes a permanent reservoir for smells and stains. A towel is the removable, washable version of that protection.

If your sauna has cedar or hemlock benches, the wood naturally resists moisture better than softwoods such as pine, but it is still not impervious. A towel keeps the wood from seeing years of repeated use. For anyone looking to maintain a cabin over a long period, this is the cheapest maintenance habit you can adopt.

Hygiene for the next bather

In a shared sauna, the bench is community property. Every bather who sits bare on the wood leaves something behind, and the next bather sits in it. This is not just about aesthetics. Skin contact with a bench that has absorbed sweat from others can transfer bacteria, fungi, or skin irritants. A towel is the personal barrier that prevents your skin from touching anyone else's residue.

Sauna etiquette in public venues nearly always includes sitting on a towel, both for your own protection and for the person who follows. Even if the venue provides benches that look clean, you have no way to know what the previous session left in the grain. A towel gives you certainty.

This is also why it is common to bring a second towel to stand or sit on after a rinse. The Why Rinse Off Before You Go In habit pairs naturally with towel use: you enter clean, and you keep the bench clean by sitting on a towel.

In venues where nudity norms are relaxed, the towel becomes even more important because skin-to-bench contact is the default. A towel restores a comfortable boundary.

Personal comfort and skin protection

Sitting bare on a hot wooden bench can be uncomfortable, especially early in a session before your body adjusts. A towel adds a layer between your skin and the heated wood, which makes the first few minutes more pleasant. For people with sensitive skin or irritation, a towel is a simple way to reduce direct heat contact.

The effect is more noticeable in traditional saunas, where temperatures typically range from 150 to 175 degrees Fahrenheit for many bathers (Finnleo's guidance). At those temperatures, the bench surface can feel uncomfortably hot against bare thighs. A folded towel provides cushioning and slows heat transfer.

In infrared saunas, where temperatures are lower, a towel is less about heat protection and more about hygiene. But infrared units are often small and enclosed, which means humidity can build up despite the lower temperature. Keeping a towel on the bench still helps keep the wood dry and clean. If you are comparing infrared vs traditional saunas, the towel habit transfers between both types.

What to use: towel, mat, or cushion

Not every sauna uses the same seating. Some have smooth planks, others have slatted benches, and some portable saunas use fabric interior panels. The basic rule is the same: place a fabric layer between your skin and the surface you sit on.

A standard cotton bath towel is the most common choice. It is large enough to cover the entire bench area where you sit, and it absorbs sweat effectively. Linen towels are a lighter alternative that dries faster and feels cooler on hot skin. If you tend to move between the upper and lower benches, a longer towel that folds over the edge helps keep it in place.

For those who want extra padding, a dedicated bench cushion made of sauna-safe material is an option. But many cushions are sold as accessories that require their own cleaning, and they add bulk. A towel is simpler: you already own it, it is washable at high temperatures, and you can rotate between several for consecutive sessions.

If you bring a towel just for sitting, consider also having a towel for drying after a rinse. Separate towels keep the sitting surface clean and give you something dry at the end.

Even at home, the habit pays off

You might think a towel is unnecessary when only you and your family use the sauna. But the same physics apply: sweat and oils still absorb into the wood. Over years, un-toweled benches develop dark spots, musty smells, and a sticky film that is hard to wash off. Starting the habit on day one keeps the cabin in better condition for longer.

Home sauna owners also find that towel use reduces the frequency of deep cleaning. A quick wipe-down of the benches after each session is enough if the wood rarely sees direct sweat contact. Less scrubbing means less wear on the wood surface.

This is especially relevant for anyone who has invested in a premium cabin with cedar walls and benches. The wood is a visible part of the experience, and keeping it clean preserves both the look and the longevity. If you are deciding between continued care products or just a new set of towels, towels are the lower-effort baseline.

What to pick for your use

Questions

Do I need to sit on a towel in an infrared sauna?

Yes, the same hygiene rules apply. Infrared saunas operate at lower temperatures, but you still sweat and your skin still touches the bench. A towel keeps the wood clean and prevents sweat stains.

Can I use the same towel to sit on and to dry off after?

It is better to use a separate towel for drying after a rinse. The sitting towel absorbs sweat and becomes damp; using it to dry off defeats the purpose of cleaning your skin. Bring two if you plan to shower between rounds.

Is it rude to sit without a towel in a public sauna?

Yes, in most public saunas it is considered inconsiderate. The bench is shared, and without a towel each bather leaves sweat and oils on the wood for the next person. Following local expectations is part of public sauna etiquette.

Does a towel protect the bench from damage?

It does. Unfinished wood absorbs moisture and oils, which leads to darkening, odors, and gradual degradation. A towel is the simplest way to keep the bench dry and reduce long-term wear.

What kind of towel is best for a sauna bench?

A cotton bath towel is a dependable choice. Linen is lighter and dries faster. Avoid towels with synthetic fibers, as they may not handle repeated high-heat exposure well. Choose a size that covers the full bench area where you sit.