Sleeping with wet hair is often seen as a convenient way to save time, but it can actually lead to a number of problems for your hair and scalp. The friction created between wet hair and fabric can cause fissures and tears on the hair shaft, resulting in breakage. The damp environment can also encourage the growth of bacteria and yeast, leading to scalp breakouts and other concerns. To avoid these issues, it is recommended to dry your hair completely before going to bed and styling it in a way that promotes oxygen flow and prevents tangling. For those who don’t have the time or energy to dry their hair, there are certain steps you can take to minimize the negative effects of sleeping with wet hair, such as using hair products that increase slippage or sleeping on satin or silk pillowcases.