TowelHub Blog

The sauna boom shows up fast in spa towels, mostly in how many of them go through the laundry each night. Hosted Aufguss rounds and cold plunges mean a single visit can run an hour or more, in and out of a room near 180°F, with a towel at nearly every stop. Guests notice a thin or sour one right away.

The Role Of Spa Towels In A Sauna Visit

When we say spa towels, we mean the cotton terry pieces a spa or bathhouse hands guests to use on site. Ours run from 12x12 washcloths up to 35x70 bath sheets that cover a whole sauna bench.

Inside the sauna, the same towel gets used three ways in one visit. Guests sit on it so their skin isn't on hot cedar or spruce. It catches sweat during the round. After the shower or the plunge, they dry off with it.

Bench rules are why towel counts climb. Healthline's sauna guide says nobody should sit directly on the bench. The Thermae baths in Belgium want even feet and heads on cloth. That's why commercial spa towels for a heat room come in more sizes than a hotel bath set ever needed.

The Sauna Boom By The Numbers

Spa Visits And Extra Towels

U.S. spas logged 191 million visits in 2025 and pulled in $23.5 billion, a record, per the International Spa Association's 2026 U.S. Spa Industry Study. Any visit that includes the heat room adds two spa towels to the pile, at minimum.

Technavio's June 2026 forecast has the U.S. sauna market adding $161.3 million by 2030, with hotels and gyms among its buyer groups.

Social Saunas And Bathhouses

Eventbrite data, reported by Fitt Insider in June 2026, has Nordic-inspired wellness events up 62.5% worldwide from 2024 to 2025, and attendance up 32.8%.

The Brooklyn spot has an event sauna for 100-plus people, with Aufguss rounds every day where a sauna master whips a towel around overhead to move the heat. Two towels per person for one packed round, and that's 200 sauna towels out of one room.

Stocking for a spike like that is a whole separate problem. Our post on social sauna towel demand goes through the par levels.

Four Towel Qualities Sauna Guests Notice

Soft Enough For Hot Skin

Per Harvard Health, a typical sauna runs around 150°F to 195°F. After a round in that, skin is red and damp, and a stiff towel feels rough. Nobody fills out a comment card about spa towel quality. They just remember the towels were scratchy. Ring-spun cotton keeps its softness longer than open-end yarn does. Dryer heat and leftover detergent are what wear it down.

Water Pickup After The Plunge

Someone doing three or four rounds is going to come out dripping every time, from sweat or from the plunge. Dense cotton loops grab that water. Fabric softener works against you here, because it coats the fibers and slows water down.

Weight matters as well. Do the math and a 600 GSM towel has a third more cotton than a 450 GSM one of the same size. More cotton holds more water but also sits in the dryer longer. We dig into that trade-off in why 600 GSM isn't always better. If your rounds run back to back, we'd lean toward professional spa towels somewhere in the middle of that range.

Durability In Daily Laundry

Look at the hems before anything else. A towel in a busy heat room may hit the wash daily. The edges fray long before the middle thins out. That's why a lot of the spa towels we carry are double-stitched at the hem and have a tuck-in selvage. Also, buy bulk spa towels from a single production run when you can. Mixed batches drift in color and size, and somebody always ends up with the one grayish towel in a bright white stack.

Visible Cleanliness And Hygiene

People can't see bacteria on a towel, so they go by what they can see and smell. One dull gray tint or faint sour smell and the towel reads as dirty, even if it came out of the dryer twenty minutes ago. Hand out a fresh towel every round. Put a lidded bin by the door so damp ones don't end up back on the clean shelf. Buying wholesale spa towels in white helps here, because white cotton takes hot washes that fade most colors.

Sauna Towel Requirements For Commercial Buyers

On a purchase order, all of that comes down to three specs.

Towel Size For Bench Coverage

Seated guests are fine on a 24x50 bath towel. If they want to lie down, give them a 30x60 or 35x70 bath sheet so their head and feet stay off the wood. Spa towels for hotels adding a sauna need the same sizes. A standard room bath towel usually comes up short on a full-length bench.

Weight Versus Dryer Time

For the sauna itself we'd pick mid-weight spa towels, roughly 450 to 550 GSM. They dry fast enough to be back out before the evening rush. We'd keep anything 600 GSM and heavier for treatment rooms and the lounge, where nobody waits on a dryer. When ordering sauna towels in bulk, ask for a mid-weight and a heavier sample and run both through a full day of laundry.

Fiber And Color Selection

Go with 100% ring-spun cotton. Keep the heat room white if you can, since white is the easiest to keep looking clean. If your brand needs color, our bleach-resistant color towels are built to handle hot water and bleach without fading. And when you're comparing cotton spa towels wholesale, check fiber content and weight per dozen, but only between matching sizes.

Laundry Habits That Save Spa Towels

None of this matters much if the laundry routine is off. We compress some towels to save on freight, so wash and dry new stock before any guest sees it. Our own instructions call for a soak first, in several gallons of warm water with a cup of white vinegar and half a cup of detergent. That lifts out finishing oils that block absorbency. A few dryer cycles then shake loose most of the lint. Skip this and spa towel quality looks worse on day one than it is.

Colors and whites go in separate loads. Leave out the fabric softener. Don't pack the machines, since commercial spa towels wear out faster when they can't tumble. Dry every load all the way, too. A stack folded slightly damp can smell sour by morning.

Frequently Asked Questions

What Size Towel Works Best In A Sauna?

Go with a 30x60 or 35x70 bath sheet so guests can sit or lie on it. A 24x50 bath towel works if everyone's upright. We keep both in our spa towel range, plus hand towels for the face.

Is Cotton Or Microfiber Better For Sauna Towels?

We'd say cotton, for most rooms. It breathes, and it stays soft against warm skin even after a lot of hot washes. Microfiber dries quicker, but it doesn't have that thick terry feel people expect at a spa. Most wholesale spa towels list fiber content, so look for 100% cotton.

Do Infrared Saunas Need Different Towels?

Not really. Infrared cabins are cooler than a traditional sauna, but people still sweat in them and still sit on wood. The same professional spa towels will do fine in either room.

How Is A Spa Towel Different From A Bath Towel?

Sometimes they're the same size. The difference is how they're made. A spa towel has to survive commercial laundry, so it gets stronger hems and cotton that can take a hot wash every day. Spa towels for hotels with a heat room should meet that standard too.

How Often Should A Spa Replace Its Towels?

Pull a towel once it stays stiff, still smells sour after a proper wash, or starts splitting at the hem. Daily-wash towels get there sooner. Keeping a reserve of sauna towels in bulk from the same run means replacements still match.

Bottom Lines

With saunas this busy, a towel gets handled three or four times a visit, and guests remember the scratchy ones. Before you reorder, write your sauna towel requirements down, run two weights through one busy weekend, and keep whichever one holds up.

Pick up cotton spa towels wholesale at TowelHub. Start with a trial dozen in each weight, then switch to bulk spa towels once your heat room has picked a favorite.