How Many Towels to Bring for a Sauna Session?

The three-towel rule

A straightforward answer: bring three towels for a typical sauna session. One towel goes on the bench beneath you, one is for drying off after you rinse, and one is a spare for longer stays or a second round. This layout works for traditional saunas, infrared cabins, and steam rooms alike, and it keeps you comfortable without carrying a full laundry load.

Why three and not two or four? Two towels cover the basics, but a spare matters more than you might expect. If you stay for the full recommended cycle, which can include a rest break and a return to the heat, your first towel will already be damp. A dry one to swap in keeps the second round just as comfortable as the first.

Towel one: the one you sit on

The sitting towel is the most important one. It creates a clean, dry barrier between your skin and the bench. In a shared sauna this is basic etiquette, but it also matters at home. Sweat left on wood soaks into the surface and can leave stains or odors over time. A towel protects the bench and keeps your skin off any residue from previous sessions.

Beyond hygiene, the towel gives you a dry surface to sit on during the hottest part of the session. If the bench is hot and you want to shift position, you can move the towel with you, or fold it to double as a thin cushion. For a full explanation of why this towel matters, see our guide on Why Sitting on a Towel Is Standard Sauna Etiquette.

Towel two: the one you dry off with

After your session, a quick rinse removes sweat and salts from your skin, and this is when the second towel comes in. Cleveland Clinic notes that saunas make you sweat, and Finnleo recommends cleansing your skin after heat bathing to remove residues and salts left behind. A dry towel finishes that job and helps you cool down gradually rather than stepping straight into a cooler room dripping wet.

This towel should be the one you reach for only after you are done with the heat. If you dry yourself mid-session and then return to the sauna, you will just sweat again, and the towel becomes damp for no reason. Keep it hung outside the hot room or in a dry spot near the shower, so it stays absorbent when you need it.

Towel three: the spare

Finnleo suggests a typical sauna visit involves staying in the heat for about 10 to 20 minutes, then taking a break to cool off for several minutes, and possibly returning for another round. Over that full cycle, your sitting towel absorbs sweat, and your dry-off towel may pick up moisture from your skin. A third towel covers both gaps: you can swap it in as a fresh sitting towel for round two, or use it to dry off after the second round if the first dry towel is already damp.

The spare is also useful in a steam shower or a high-humidity sauna, because towels absorb moisture even when you are not actively sweating. If you are in a shared facility or a rented cabin, an extra towel is simple insurance. You can also use it as a headrest cover or a shoulder wrap between rounds. For more on using a towel instead of a cushion or pillow, see our comparison of Bench Cushions vs a Plain Towel.

Fabric and size: how to choose your three towels

Cotton and linen are the two most common towel fabrics, and each suits a different role. Cotton absorbs more water, which makes it a good choice for the dry-off towel. Linen dries faster and feels lighter, which works well for the sitting towel, especially in a humid sauna. For a detailed breakdown, see our article on Linen vs Cotton Towels.

Size matters more than you might think. A small hand towel barely covers the bench and leaves your legs on the wood. A larger bath sheet gives full coverage and can double as a wrap when you step out. Aim for at least one large towel for sitting. The dry-off towel can be a standard bath towel, and the spare can match either one depending on how you plan to use it. For more on sizes, read our piece on Towel Size and Fabric.

If you prefer a towel that also works as a wrap or kilt after your session, look for a larger size or a dedicated wrap. That gives you a fourth option, but three towels still do the job if one of them is big enough to wrap around you. See our guide on Wraps, Kilts, and Robes for ideas.

When you can get away with fewer, and when you need more

A short infrared session at a lower temperature, typically between 120 and 130 degrees Fahrenheit, may produce less sweat than a hotter traditional sauna at 150 to 175 degrees Fahrenheit. In that case, two towels could be enough: one to sit on and one to dry off. But the difference between a light and a heavy sweeper is bigger than the difference between sauna types, so three towels remain a safe default.

A multi-round session or a social visit where you spend time in a cool-down room or outside between rounds calls for at least three, and possibly four. If you go from the sauna to a cold plunge or an outdoor cooldown, each towel gets used for different purposes, and a damp towel does not feel good on cold skin. Pack for the longest session you plan to have, not the shortest.

What to pick for your use

Questions

How many towels do I need for a sauna?

Three towels cover a typical session: one to sit on, one to dry off, and one spare. If you take short sessions and do not mind reusing the same towel, two can work, but three is the comfortable default.

Can I use one big towel for the whole sauna session?

You can, but it is not ideal. One towel will be both your sitting layer and your drying cloth, so after you dry off, you would need to sit on a damp towel for the next round. Two or three separate towels keep each role clean and dry.

Do I need a towel for an infrared sauna?

Yes. Infrared saunas run at a lower temperature than traditional saunas, typically between 120 and 130 degrees Fahrenheit, but you still sweat. The same three-towel layout works: one to sit on, one to dry off, and one spare.

What size towel should I bring to the sauna?

A full-size bath towel works for sitting and drying. A bath sheet gives more coverage for the bench and can double as a wrap. Large towels are more versatile than small ones, especially if you plan to lie down or sit with your knees up.

Is it okay to reuse the same towel for several sauna sessions?

You should wash your towels between sessions. Sweat leaves salts and oils on the fabric, and a damp towel left in a warm room can develop odor. Use a fresh towel for each visit, or at least let the towels dry fully and wash them after every use.