Clothing items you should never wear when sleeping:

1. Underwear

Tight underwear can be a possible culprit for poor sleep. Not only is it uncomfortable but it can lead to a series of health issues: for instance, it can cause ye*st infections in women and lower sp*rm production in men.

As explained by Healthline, “cand*da, the bacteria responsible for ye*st infections, thrives in warm, moist environments.” In the case of men, “warm, wet gen*tals are a breeding ground for fungi.”

Recommendation: 100% cotton underwear.

Like your undies, your bra can also cause trouble. When too tight, bras can cause irritations and hyperpigmentation, warns Jen Wan, co-founder of skincare company Soteri Skin.