The Less-Obvious Risks
However, it’s not all good news. Wearing tight or synthetic socks overnight can trap moisture and heat, creating the perfect breeding ground for fungal infections like the athlete’s foot. Dermatologists warn that poor airflow may lead to skin irritation, dryness, or even bacterial buildup.
For people with diabetes or poor blood circulation, tight socks can restrict blood flow and increase the risk of foot ulcers — a serious complication. Overheating the feet can also disrupt your body’s natural temperature drop during sleep, sabotaging deep REM cycles and leaving you tired the next day.
Expert Verdict: When It’s Safe (and When It’s Not)
Do it: Use loose, breathable cotton or bamboo socks.
