For people with diabetes or circulatory problems, tight socks can restrict blood circulation and increase the risk of foot ulcers – a serious complication. Overheated feet can also disrupt the body’s natural temperature drop during sleep, impair deep sleep phases (REM sleep), and lead to fatigue the next day.

Expert opinion: When it’s safe (and when it’s not):
Do it: Wear loose, breathable socks made of cotton or bamboo.

Avoid it: Don’t wear tight nylon or thick wool socks, especially if you have diabetes, neuropathy, or sweaty feet.
Tip: If your feet get warm at night, take your socks off—your body is telling you it’s time to cool down.
Bottom line: Sleeping in socks can be a sleep miracle for some, but a health risk for others. Listen to your body, choose the right material, and you’ll wake up refreshed instead of regretting the extra layer.

(Sources: Sleep Medicine Journal 2023, American Heart Association, WHO Guidelines for Podiatry. This article is for informational purposes only and does not replace medical advice.)