How Long Should You Sit in a Sauna? A Round by Round Guide
How long should you sit in a sauna? For most healthy adults, about 10 to 15 minutes at a time is plenty, with a cool break in between and a total of two or three rounds. Beginners should start nearer five to ten minutes and stop the moment they feel unwell.
The right length depends on the heat, the humidity and your own body that day, so there is no single number that fits everyone. This guide gives you a simple plan, explains what people mean by a German sauna, and answers the question every visitor eventually asks: can you bring your phone in? We also say plainly what our own steam sauna at Hana Spa is like.
How long should you sit in a sauna?
Ten to fifteen minutes per round suits most people, and five to ten is a good start if you are new. Leave earlier whenever you feel dizzy, nauseous or too hot. Staying longer does not give you more benefit.
| Experience | Time per round | Rounds | Cool break |
|---|---|---|---|
| First visit | 5 to 10 minutes | 1 or 2 | 5 to 10 minutes |
| Regular visitor | 10 to 15 minutes | 2 or 3 | 5 to 10 minutes |
| Steam sauna (wet heat) | 10 to 15 minutes | 1 or 2 | 5 to 10 minutes |
These are general ranges, not medical rules. Heat tolerance shifts from day to day. Tiredness, a missed meal, a hot day or a drink can all shorten the time you can comfortably stay.
Signs it is time to get out
- Dizziness or lightheadedness
- A pounding heart or shortness of breath
- Nausea or a building headache
- Feeling chilled or confused while hot
If any of those show up, leave, cool down, sit and drink water. If symptoms do not ease, get medical help. People who are pregnant, or have heart, blood pressure or circulation concerns, should ask a doctor before using a sauna at all.
Dry heat versus steam: does it change the time?
Yes, a little. Dry heat runs hotter, so rounds tend to be shorter. Steam runs cooler but damper, and some people find it harder to breathe in, so they also keep rounds short.
In a Finnish style room, with air near 160 to 195 degrees Fahrenheit, the heat is intense, and our guide to the Finnish sauna explains the numbers. Hana Spa has a steam sauna instead, a wet and gentler heat. Our comparison of sauna and steam room shows how each feels.
Whichever you choose, the pattern is the same: short round, cool down, drink water, repeat once or twice. Our separate note on how long to stay in a sauna before or after a massage covers how to time it around bodywork.
What is a German sauna?
A German sauna is the style used in Germany, Austria and nearby countries: a hot, dry, wood lined room, much like a Finnish sauna, usually used in a social, often shared spa setting. The big cultural difference is etiquette rather than the room itself.
In Germany saunas are typically textile free, meaning people sit on a towel without a swimsuit, and many are mixed gender. There is usually a rule to sit on your towel and to keep conversation low. Many German saunas also have scheduled sessions where an attendant waves hot air over guests with a towel, known as an Aufguss.
Temperatures vary by room, and often run somewhat lower than a Finnish sauna, with the humidity changing during an Aufguss. These customs differ from what you will see at a typical Korean spa in New Jersey, and Hana Spa does not offer a German style sauna. If you are traveling, check local rules before you go in, so you are not surprised.
For what to put on, see what to wear in a sauna, which covers towels, swimsuits and local customs.
Can you bring your phone in a sauna?
It is best to leave it outside. Heat and humidity can damage a phone, and the battery can swell or overheat. Most spas also ask guests to keep screens out of shared quiet rooms.
Phones are built to work within a limited temperature range, usually well below sauna heat, and moisture can slip into the ports. A hot room is the wrong place for one. Even a waterproof phone can overheat and shut down.
There is another reason to leave it behind. The point of the room is to slow down. Checking messages keeps you alert, and it tempts you to stay beyond your limit. Use a locker or leave the phone with your things. If you need to track time, ask the front desk for a clock, or use a simple watch, and glance at it after you step out.
What else to leave outside
- Jewelry that gets hot against skin
- Eyeglasses and contact lenses if the heat bothers you
- Anything you would not want warped by heat
Does sitting longer burn more calories?
Not meaningfully. Sitting in a sauna raises your heart rate somewhat, but the extra energy is small, and a longer stay mostly adds dehydration risk.
If you came to lose weight, a sauna is not the tool. The scale will drop from water loss and then return. Our post on whether a sauna helps you lose weight explains the difference between water and fat, and why it is not worth pushing your time to chase a number.
A simple plan for a steam sauna visit
Drink water, shower, take a short round, cool off, and repeat once. Then rest and drink again before you dress.
- Drink a glass of water before you go in.
- Rinse off, then sit on a towel.
- Stay for 10 to 15 minutes, or less on your first visit.
- Step out, sit and breathe until your heart rate settles.
- Take a second round only if you feel good.
- Rest and drink water for at least ten minutes afterward.
People who enjoy steam often like to learn about its other effects, and our overview of the benefits of a steam sauna covers skin, sinuses and sleep.
Who should sit for less time, or skip it
Some people need shorter rounds or a doctor's go ahead before using any hot room. That includes anyone who is pregnant, has heart disease, low blood pressure or circulation problems, takes medication that affects sweating or blood pressure, or has been told to avoid heat.
Children and older adults also tend to overheat faster, so they should sit for less time and stay near the door or on the lowest bench. Skip the room completely if you have a fever, have been drinking alcohol, or feel unwell. A hot room asks your body to work, and a body that is already stressed does not need extra.
If you are unsure
Start with a very short round of three to five minutes on the lowest bench, then step out and see how you feel. You can always go back in. Nobody at a good spa will think less of you for leaving early.
What to do after you leave the sauna
Cool down gradually, drink water, and rest for at least ten minutes before you dress or leave. Your heart rate and blood pressure take a little while to settle.
Skip a very cold plunge if you are not used to it, since a sudden shock after heat can be hard on some bodies. A lukewarm or cool shower is gentler. Avoid hard exercise, alcohol and a big meal right away. A light snack and water is ideal.
If you feel light headed when you stand, sit back down. Plan to take it easy for the rest of the evening, because heat can leave you pleasantly drowsy.
Try the steam sauna at Hana Spa
Hana Spa is at 520 Bergen Blvd, Palisades Park, NJ 07650, open every day from 9 AM to 11 PM. Walk ins are welcome, and you can call 201-242-0444 to hold a time. Ask the front desk how long to plan for your first round.
Browse our full services list or read how our steam sauna works, then book a time online when you are ready. Parking is free, Korean and English are spoken, and you are six minutes from Fort Lee and the George Washington Bridge.
Questions readers ask
Is it okay to stay in a sauna for 30 minutes?
For most people that is too long in one stretch. Take shorter rounds with cool breaks instead, and stop at any sign of dizziness or nausea.
How many times a week can I use a sauna?
Many healthy people use one a few times a week. It depends on your health and how you feel, so ask your doctor if you have any concerns.
Should I eat before a sauna?
A light snack an hour or two earlier is fine. Avoid a heavy meal and avoid going in hungry.
Is it normal to feel tired after a sauna?
Yes, heat can leave you relaxed and a bit sleepy. Rest, drink water, and avoid driving until you feel clear headed.