It is not a good idea to sleep with wet hair because if it remains damp over hours and rubs against the pillow then it doesn’t aerate and could get damaged. Although it is unlikely to become rotten, the humidity factor in our hair can lead to infection with pathogens on the scalp or in our body (e.g. coughs and headaches due to the cold, etc).
Using a motorbike helmet every day, for example, can cause damage to your hair especially if it is already weak and lifeless. The simple action