The ideal humidity for a bedroom generally falls between 30% and 50% relative humidity , according to the Environmental Protection Agency (EPA) and multiple sleep and health sources
. Some studies suggest a slightly broader range of 40% to 60% may also be acceptable, but it is widely agreed that indoor humidity should never exceed 60% to avoid issues like mold growth and respiratory problems
. Maintaining humidity within this range supports better sleep quality by preventing discomfort such as dry skin, irritated nasal passages, or a sticky, damp feeling in bedding. Too low humidity can cause dryness and irritation, while too high humidity can promote mold and allergens, negatively impacting sleep and health
. In summary:
- Recommended bedroom humidity: 30% to 50% relative humidity
- Acceptable range: 40% to 60%, but avoid exceeding 60%
- Effects of too low humidity: Dry skin, respiratory irritation, poor sleep
- Effects of too high humidity: Mold growth, stuffy air, allergies, discomfort
Using a humidistat or hygrometer can help monitor and control humidity levels effectively in your bedroom
