According to Cindy Wassef, MD, wet hair tends to be more fragile, so if there is a combination of wet and fragile hair with friction or pressure during sleep, it can cause damage to the hair and even lead to hair breakage.

Apart from the risk of hair damage, sleeping with wet hair can also lead to potential problems on the scalp. Cindy Wassef, MD, says that sleeping with wet hair can make the scalp more moist and warm, increasing the risk of bacterial and fungal infections. This can result in the appearance of folliculitis, hair follicle infections, as well as worsen existing dandruff conditions. Additionally, sleeping with wet hair can also cause respiratory problems as the moisture on the pillow can facilitate fungal growth.

Tying hair with a loose or not too tight hair tie just to gather the hair. Using a silk pillowcase. Using a satin head cover while sleeping. Applying shampoo to the scalp and conditioner to the ends of the hair.