Cold Plunge

How to Use a Sauna: A Complete Beginner's Guide

How to Use a Sauna: A Complete Beginner

How to Use a Sauna: A Complete Beginner's Guide

Your first time in a sauna can feel a little awkward. How hot is too hot? How long should you stay? Do you really need to sit on a towel? Is there some unspoken code of conduct you're about to break?

Relax. It's a hot room, not a secret society. Here's what matters most to use a sauna properly, get the most out of every session, and avoid the common beginner mistakes.

How to Use a Sauna: A Complete Beginner's Guide

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Before You Step In: Preparation

Hydrate First

This isn't optional. You're about to sweat out a pint or more of fluid in 15-20 minutes. Drink at least 16-20 ounces of water in the hour before your session. Not coffee, not a sports drink - plain water works best.

If you're dehydrated going in, you'll feel dizzy, get headaches, and cut your session short. It's the number one beginner mistake and the easiest one to fix.

Shower First

Take a quick rinse before you get in. This isn't just about being considerate to other users (though it is). Washing off lotions, deodorant, and sweat actually helps your body sweat more efficiently. Clean skin = open pores = better session.

What to Wear

At public saunas in the US, you'll typically wear a towel or a swimsuit. In Finland and much of Europe, saunas are used nude - it's considered more hygienic and comfortable.

If you have your own home sauna, wear whatever you want. Most people go with a towel wrap or nothing at all. Avoid synthetic fabrics - they trap heat against your skin and can feel uncomfortable. Cotton is fine. Nothing is better.

How to Use a Sauna: A Complete Beginner's Guide illustration

Step-by-Step: Your Sauna Session

Step 1: Set the Temperature

If you're new, start lower. Set a traditional sauna to 150-165°F. If you're using an infrared sauna, 120-135°F is a good starting range. You can always bump it up next time.

Let the sauna preheat for 30-45 minutes before you get in. The thermostat might read the right number after 15 minutes, but the walls, benches, and sauna stones need time to absorb heat. A fully preheated sauna feels completely different from one that's still warming up.

Step 2: Sit on a Towel

Always place a towel on the bench before sitting down. This does two things: it protects the wood from sweat (which keeps the sauna clean and extends its life), and it keeps your skin from sticking to hot wooden surfaces.

Bring a second towel to wipe sweat off your face and body during the session.

Step 3: Choose Your Bench

Heat rises. The upper bench is significantly hotter than the lower bench - sometimes by 20-30°F. Beginners should start on the lower bench. Move up when you're ready for more intensity.

Lying down is actually more comfortable than sitting because it puts your entire body at the same temperature level instead of having your head in the hottest zone.

Step 4: Stay for 10-20 Minutes

For your first few sessions, aim for 10-15 minutes. There's no prize for suffering. If you feel great at 10 minutes, stay a bit longer. If you feel lightheaded at 8 minutes, get out at 8 minutes.

Experienced sauna users typically do 15-20 minute rounds. The Finnish research that showed the biggest health benefits used sessions around 20 minutes at 175-180°F. That's a good target to work toward over a few weeks.

Step 5: Cool Down

This part is just as important as the heat itself. When you step out, give your body time to cool down before going back in. Options include:

  • A cold shower (start warm and gradually go cold if you're new to it)
  • A dip in a cold plunge - this is how the Finns do it, and the contrast is incredible
  • Simply sitting in fresh air for 5-10 minutes
  • Rolling in snow, if you're in Finland and feeling bold

The cool-down triggers your blood vessels to constrict after being dilated in the heat. This vascular "workout" is where a lot of the cardiovascular benefits come from.

Step 6: Repeat (If You Want)

Traditional Finnish sauna bathing involves multiple rounds - typically 2-4 cycles of heat followed by cool-down. Each round feels different. The first round warms you up. The second round is where you really start sweating. By the third round, you're deeply relaxed.

You don't have to do multiple rounds. One round still provides real benefits. But if you have the time, try 2-3 rounds and see how you feel afterward.

Step 7: Hydrate Again

Drink another 16-20 ounces of water after your session. You've lost significant fluid through sweat. Some people like to add electrolytes, which is smart if you're doing longer or hotter sessions.

Sauna Etiquette: The Unwritten Rules

If you're at a gym, a spa, or a friend's house, these basics apply:

  • Always sit on a towel. Nobody wants to sit in your sweat puddle.
  • Keep your voice down. The sauna is a quiet zone. Conversations are fine, but save the loud debates for somewhere else.
  • No phones. The heat will damage your phone anyway, but more importantly, it ruins the experience for everyone.
  • Don't pour water on the stones without asking. In a shared sauna, check with others before creating steam. Some people hate it.
  • Close the door quickly. Every second the door is open, heat escapes. Get in, get out, don't linger in the doorway.
  • Don't stare. People are in towels or less. Just be normal about it.

Common Beginner Mistakes

Going Too Hot, Too Long, Too Soon

The number one mistake. You don't need to prove anything. Start moderate and build up over 2-3 weeks. Your body acclimates surprisingly fast.

Skipping Hydration

Dehydration turns a relaxing experience into a headache-inducing one. Drink water before, during (if you need it), and after.

Using the Sauna After Heavy Meals

Your body diverts blood to your digestive system after eating. The sauna diverts blood to your skin for cooling. These two processes compete, and you end up feeling nauseous. Wait at least an hour after eating.

Forgetting to Cool Down

Jumping straight from the sauna into your clothes and heading out misses half the benefit. The cool-down phase is where your body recalibrates, and it's when many people feel the deepest relaxation.

Who Should Be Cautious

Saunas are safe for most healthy adults. But check with your doctor first if you:

  • Have heart disease or uncontrolled blood pressure
  • Are pregnant
  • Take medications that affect sweating or blood pressure
  • Have recently had surgery
  • Have a history of fainting or heat sensitivity

Ready to Make It a Habit?

The research is clear - sauna benefits compound with consistency. Two to four sessions per week is where the health data gets really compelling. That's hard to pull off with a gym sauna, but easy with one at home.

Browse our outdoor saunas and indoor saunas to find one that fits your space. Add a sauna accessory kit with a bucket, ladle, and thermometer, and you're set.

Your first session might feel unfamiliar. By your fifth, you'll wonder how you lived without it.

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Written by SweatDecks

SweatDecks is a contributor at SweatDecks covering cold plunge and sauna wellness topics. Our editorial team rigorously fact-checks all content to ensure accuracy and trustworthiness.

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