# How Long to Sit in a Sauna, and How Often to Go

Source: https://www.mars-sauna-room.com/guides/how-long-to-sit-in-sauna/

Published 2026-09-22, updated 2026-10-20.

Most healthy adults should sit in a traditional sauna for 10 to 20 minutes per round, cool down, and repeat once or twice if they feel good. In an infrared sauna, which runs cooler, 20 to 30 minutes is typical. Beginners should start with 5 to 10 minutes, and two to four sessions a week matches the habits studied in most research.

## How long to sit in a sauna: the quick chart

The right answer to how long to sit in sauna heat depends on the type of sauna, its temperature and your experience. A traditional Finnish-style dry sauna is hot air heated by a stove, typically 80-100 °C (176-212 °F) at head height with 10-20% relative humidity, according to a [2018 review in Mayo Clinic Proceedings](https://pubmed.ncbi.nlm.nih.gov/30077204/). An infrared sauna uses radiant heaters to warm the body directly at a lower air temperature.

| Sauna type | Typical air temperature | Beginner round | Experienced round | Rounds per session |
|---|---|---|---|---|
| Traditional dry sauna | 80-100 °C (176-212 °F) | 5-10 min | 10-20 min | 1-3, with cool-downs |
| Traditional, cooler setting | 65-75 °C (149-167 °F) | 8-12 min | 15-20 min | 1-3 |
| Infrared sauna | 43-57 °C (110-135 °F) | 5-15 min | 20-30 min | 1, occasionally 2 |
| Steam room | 40-50 °C (104-122 °F), ~100% humidity | 5-8 min | 10-15 min | 1-2 |

These are general ranges, not limits for every body. Heat tolerance varies with age, fitness, hydration, medication and how acclimatized you are.

## How long should you stay in a sauna for benefits?

The most-cited data on sauna time comes from the Kuopio Ischemic Heart Disease study in eastern Finland. A [2015 analysis in JAMA Internal Medicine](https://pubmed.ncbi.nlm.nih.gov/25705824/) followed 2,315 men aged 42-60 for a median of 20.7 years. Compared with sessions under 11 minutes, sessions longer than 19 minutes were associated with a lower risk of sudden cardiac death (hazard ratio 0.48).

That finding is often turned into "stay in for 20 minutes." Keep its limits in mind:

- It was observational, so it shows an association, not cause and effect.
- Participants were middle-aged Finnish men using traditional saunas, so results may not transfer to women, younger people or infrared cabins.
- People who sauna longer and more often may differ in other ways, such as fitness or leisure time.

A [2018 systematic review by Hussain and Cohen](https://pmc.ncbi.nlm.nih.gov/articles/PMC5941775/) of regular dry sauna bathing concluded that sauna use was generally well tolerated and associated with several cardiovascular and other benefits, while calling for more high-quality trials. For a fuller look at what the research shows, see our guide to [sauna benefits](/guides/sauna-benefits/).

### Is 15 minutes of sauna a day enough?

For many people, a 15-minute session is a reasonable target. It sits in the middle of the 10-20 minute range that [Harvard Health](https://www.health.harvard.edu/staying-healthy/saunas-and-your-health) recommends as a limit per stay, and inside the 5-20 minute rounds the Mayo Clinic Proceedings review describes as typical in Finland. There is no evidence that a specific daily minute count unlocks a specific benefit.

## How often should you use a sauna?

Frequency matters at least as much as length. According to the 2018 Mayo Clinic Proceedings review, typical Finns bathe at least once a week and average two to three sessions a week.

In the same 2015 JAMA Internal Medicine cohort, men who used a sauna four to seven times a week had a lower risk of sudden cardiac death than once-a-week users (hazard ratio 0.37), with similar trends for fatal heart disease and all-cause death. A later analysis of the same cohort, [published in Age and Ageing in 2017](https://research-information.bris.ac.uk/en/publications/sauna-bathing-is-inversely-associated-with-dementia-and-alzheimer/), associated four to seven weekly sessions with lower dementia risk. Again, these are associations from one male population.

| Weekly sessions | What it looks like | Who it suits |
|---|---|---|
| 1 | Weekend ritual | Beginners, busy schedules |
| 2-3 | Typical Finnish pattern | Most adults |
| 4-7 | Daily or near-daily | Experienced, healthy users who hydrate well |

### Can you sauna every day?

Yes, daily sauna use is normal in Finland and appears safe for most healthy adults. The practical rules for sauna every day are the same as for any session: drink water, skip alcohol, keep rounds to 10-20 minutes and take a day off if you feel run down. If you are using a home cabin daily, the same applies to infrared models; how often you can use an infrared sauna is limited mainly by hydration and how you feel, not by the equipment.

## How long to stay in an infrared sauna

Infrared cabins run cooler, so sessions run longer. [Cleveland Clinic](https://health.clevelandclinic.org/infrared-sauna-benefits) gives infrared temperatures of 110-135 °F (43-57 °C) versus 150-195 °F (66-91 °C) for traditional saunas. It advises beginners to start around 110 °F for 5 to 10 minutes and build up, and says even experienced users should keep sessions to about 20 to 30 minutes.

A simple progression for how to use an infrared sauna:

1. Week 1: 10-15 minutes at 110-120 °F (43-49 °C), two or three times.
2. Week 2: 15-20 minutes, raising the setpoint a few degrees if comfortable.
3. Week 3 onward: 20-30 minutes, three to five times a week.
4. Preheat the cabin for 10-20 minutes before you enter, depending on the heater and room.

Infrared models in the Mars Sauna catalogue list an operating range of 18-65 °C (64-149 °F), so the upper end of the dial is hotter than most people need. Our [infrared sauna benefits, risks and safety guide](/guides/infrared-sauna-benefits/) covers heater types and settings in more detail.

## What is the best sauna temperature for your session?

Best sauna temp and session length work together: the hotter the room, the shorter the round. A practical approach:

- **Traditional sauna:** 70-90 °C (158-194 °F) is comfortable for most regular users. Start lower and shorten rounds as you go hotter.
- **Infrared sauna:** 45-55 °C (113-131 °F) for 20-30 minutes.
- **Humidity:** Adding water to the stones (löyly) raises perceived heat sharply, so shorten the round when you do.

Our [sauna temperature guide](/guides/sauna-temperature/) explains the trade-offs by sauna type.

## How long is too long in a sauna?

There is no universal maximum time in a sauna, but past a point you add risk without a known benefit. For most people, more than 20 minutes in a single traditional round, or more than 30-45 minutes in an infrared cabin, is longer than needed. Get out immediately if you notice:

- Dizziness, light-headedness or blurred vision
- Headache or nausea
- A racing or irregular heartbeat
- Cramping, confusion or feeling cold and clammy

Stand up slowly at the end of a round. Blood pressure can drop as blood vessels dilate, and the Mayo Clinic Proceedings review flags orthostatic hypotension (a drop in blood pressure on standing) as a reason for caution.

### Who should check with a doctor first

The 2018 Mayo Clinic Proceedings review lists unstable angina, recent heart attack, uncontrolled hypertension, decompensated heart failure and severe aortic stenosis as contraindications, along with fever and acute infections. Cleveland Clinic adds pregnancy, multiple sclerosis and trying to conceive (heat can temporarily reduce sperm quality) as reasons to avoid or limit sauna use.

This article is general information, not medical advice. People who are pregnant, have heart disease, low or high blood pressure or other conditions should talk to a doctor before using a sauna or cold plunge.

## What is the best time to use a sauna?

The best time to sauna is the time you can do it consistently and safely:

- **Evening:** Many people find a session 1-2 hours before bed relaxing.
- **After exercise:** Common in gyms, but rehydrate first. See [sauna before or after a workout](/guides/sauna-before-or-after-workout/).
- **Not after alcohol or a large meal:** The review authors note that some sauna-related deaths were at least partly linked to alcohol.

## A safe sauna routine, step by step

1. Drink a glass or two of water beforehand.
2. Shower and dry off.
3. Sit or lie on the bench for 10-20 minutes (traditional) or 20-30 minutes (infrared).
4. Leave, cool off for 5-15 minutes with a shower, fresh air or a cool plunge if you are healthy and used to it.
5. Repeat for one or two more rounds if you feel well.
6. Rehydrate afterward. Harvard Health suggests two to four glasses of cool water.

## Planning a home sauna around your routine

If you plan to use a sauna three or more times a week, a home cabin removes the commute. Size matters for daily use: a 1- or 2-person infrared cabin heats faster, while a traditional stove sauna (roughly 3.5-6 kW on our listed models) suits people who prefer hot, humid rounds. Browse [all sauna models](/saunas/) or use the [sauna finder](/tools/sauna-finder/) to match a cabin to your space. Retailers, gyms and spas can [request a quote](/contact/) for wholesale or OEM builds.

## Key takeaways

- Sit in a traditional sauna for 10-20 minutes per round, and an infrared sauna for 20-30 minutes; beginners start with 5-10.
- Two to four sessions a week is typical; daily use appears safe for most healthy adults who hydrate and avoid alcohol.
- The 2015 Finnish study linking 19+ minute sessions and 4-7 weekly sessions to lower cardiac death was observational and limited to middle-aged men.
- Hotter rooms call for shorter rounds; leave at the first sign of dizziness, nausea or a racing heart.
- People with heart conditions, blood pressure problems, pregnancy or fever should talk to a doctor before using a sauna.

## FAQ
### How long should you sit in a sauna?
Most healthy adults sit in a traditional sauna for 10 to 20 minutes per round, at roughly 80-100 °C (176-212 °F). Beginners should start with 5 to 10 minutes. Harvard Health suggests limiting each stay to about 15 to 20 minutes, and you should leave sooner if you feel dizzy, nauseated or unwell.

### How long should you stay in an infrared sauna?
Infrared sessions usually run 20 to 30 minutes because cabins operate cooler, around 43-57 °C (110-135 °F). Cleveland Clinic advises beginners to start near 110 °F for 5 to 10 minutes and build up, and says even experienced users should keep sessions to about 20 to 30 minutes.

### How often should you use a sauna?
Two to four sessions a week is a common, well-studied pattern. Finnish research describes typical use as two to three times a week, and a 2015 cohort of 2,315 men linked four to seven weekly sessions with lower cardiovascular mortality. That study was observational, so it shows association, not proof that more sauna causes better health.

### Can you sauna every day?
Daily sauna use is common in Finland and appears safe for most healthy adults who hydrate, avoid alcohol and keep rounds to 10-20 minutes. People with unstable heart disease, uncontrolled blood pressure, pregnancy or other medical conditions should ask a doctor first, and anyone feeling unwell should skip a day.

### How long is too long in a sauna?
For most people, a single continuous round beyond 20 minutes in a traditional sauna, or beyond 30 to 45 minutes in an infrared cabin, is longer than needed and raises the risk of dehydration and overheating. Warning signs such as dizziness, headache, nausea or a racing heart mean you should get out immediately.

### What is the best time of day to use a sauna?
There is no single best time. Evening sessions suit people who find heat relaxing before sleep, while post-workout sessions fit gym routines once you have rehydrated. Avoid using a sauna right after a heavy meal, after drinking alcohol or when you are already dehydrated.


## Sources
- [Laukkanen T et al. Association between sauna bathing and fatal cardiovascular and all-cause mortality events. JAMA Intern Med. 2015](https://pubmed.ncbi.nlm.nih.gov/25705824/)
- [Laukkanen JA, Laukkanen T, Kunutsor SK. Cardiovascular and other health benefits of sauna bathing: a review of the evidence. Mayo Clin Proc. 2018](https://pubmed.ncbi.nlm.nih.gov/30077204/)
- [Hussain J, Cohen M. Clinical effects of regular dry sauna bathing: a systematic review. Evid Based Complement Alternat Med. 2018](https://pmc.ncbi.nlm.nih.gov/articles/PMC5941775/)
- [Harvard Health Publishing: Sauna health benefits, are saunas healthy or harmful?](https://www.health.harvard.edu/staying-healthy/saunas-and-your-health)
- [Cleveland Clinic: 6 possible benefits of infrared saunas](https://health.clevelandclinic.org/infrared-sauna-benefits)
- [University of Bristol repository: Sauna bathing is inversely associated with dementia and Alzheimer's disease in middle-aged Finnish men (Age and Ageing, 2017)](https://research-information.bris.ac.uk/en/publications/sauna-bathing-is-inversely-associated-with-dementia-and-alzheimer/)