The Bottom Line
For most healthy adults, 15–20 minutes per session, 3–5 times a week is the evidence-supported sweet spot. The largest studies found benefits rising with frequency — those using a sauna 4–7 times weekly saw the most. Consistency matters more than intensity.
Session Length
- Beginners: Start with 5–10 minutes and a lower temperature. Step out if you feel lightheaded.
- Regular use:15–20 minutes is plenty for most benefits. Infrared's lower temperatures (120–150°F) make longer, comfortable sessions easier than a hot traditional sauna.
- Always hydrate: Drink water before and after, and never use a sauna under the influence of alcohol.
How Soon You'll Notice
Many users report better sleep within the first week, with recovery and general wellbeing improving over 2–3 weeks of consistent use. Think of it like exercise: the routine is what delivers, not any single session. (Always check with your doctor first if you're pregnant, have heart conditions, or low blood pressure.)
A sauna you'll actually use daily is the one that fits your space and budget. Find it in our comparison tool.