Best Temperature for Sleeping
A slightly cool bedroom helps many people sleep comfortably because body temperature naturally declines as sleep approaches. There is no perfect thermostat number for everyone, however. Bedding, pajamas, humidity, airflow, age, health, and whether you share the bed all change how a room feels.
A Practical Starting Range
Many adults prefer a room somewhere in the low-to-mid 60s Fahrenheit, but comfort matters more than forcing a specific number. Start with a moderately cool setting, then adjust bedding and airflow before making large thermostat changes.
Too Warm or Too Cold?
Signs the Room Is Too Warm
Sweating, restless repositioning, warm pillows, waking thirsty, or kicking off covers repeatedly.
Signs the Room Is Too Cold
Cold feet, muscle tension, curling tightly, waking to add blankets, or difficulty relaxing.
Ways to Improve Thermal Comfort
- Use breathable layers instead of one heavy blanket.
- Choose moisture-managing sheets and sleepwear.
- Run a fan safely for airflow and steady background sound.
- Use separate blankets when bed partners prefer different temperatures.
- Warm cold feet with socks rather than heating the entire room.
- Keep direct air from blowing uncomfortably on the face.
Humidity Changes How Heat Feels
High humidity can make a moderate room feel hot and sticky. Very dry air may irritate the nose and throat. A hygrometer can help you distinguish a temperature problem from a humidity problem.
Special Situations
Babies, older adults, people with fever, and those with medical conditions may have different temperature-safety needs. Follow appropriate medical or pediatric guidance rather than a general adult comfort target.
Bedroom Temperature FAQs
Is 68°F too warm for sleep?
Not necessarily. Some people sleep well at 68°F, especially with light bedding and good airflow.
Should I sleep with a fan?
A fan can improve airflow and comfort when used safely, maintained properly, and positioned so it does not cause dryness or discomfort.
Why do I wake up hot at night?
Bedding, room temperature, hormones, fever, alcohol, medication, and health conditions can all contribute.