Wearing socks to bed may improve sleep quality, expert says

Wearing socks to bed can help people fall asleep faster and improve overall sleep quality, according to a sleep-medicine specialist.

Regulating temperature is a critical component of the human sleep-wake cycle. When the body cannot effectively manage its thermal state, it can lead to insomnia or fragmented sleep, making a simple habit like wearing socks a potential tool for better health.

Dr. Aparna Bhat, an MD and sleep-medicine specialist at the Cleveland Clinic, discussed the physiological benefits of warming the feet in a recent podcast ^[1]. She said that keeping the feet warm promotes a process called vasodilation. This occurs when blood vessels widen, allowing more warm blood to flow to the extremities.

This shift in blood flow helps the body lower its core internal temperature ^[1]. A drop in core temperature is a biological signal to the brain that it is time to sleep, which can help individuals drift off more quickly and remain asleep longer ^[1].

Beyond general sleep hygiene, Dr. Bhat said this practice can be particularly beneficial for people with specific medical conditions ^[1]. For those suffering from Raynaud’s disease, which causes reduced blood flow to the fingers and toes, warming the feet can alleviate discomfort. Additionally, the practice may help ease the night sweats, and temperature fluctuations associated with menopause ^[1].

While the habit is generally safe, the focus remains on the relationship between extremity warmth and the brain's sleep triggers. By manipulating the temperature of the feet, individuals can essentially "trick" the body into a state of readiness for rest ^[1].