Here's something to think about before your head hits the pillow: Sleeping with wet hair can lead to fungal infection and unhealthy hair. According to researchers in the U.K., there can be up to 16 different types of fungal species found on your pillow. The best time to wash your hair according to research is in the morning. However if you are committed to washing your hair before bed, experts recommend drying your hair or using a silk pillow to help curb chances of fungal infection.
Source: Buzzfeed