Boys sleeping naked has certain benefits, conducive to sleep, can improve the quality of sperm vitality, etc., but boys sleeping naked is also prone to infections, catching cold and so on. 1. conducive to sleep: sleeping naked removed the constraints of clothing, so that men can relax after a day of intense work, and sleeping naked on the blood circulation is stimulating and promoting the role of sweating to get rid of dead skin cells, a greater degree of fatigue, help sleep. 2. Improve the quality of sperm vitality: Sperm are mainly produced from the testicles, but the testicles require high temperature. High temperature will lead to degradation of spermatogenic cells in the testicles, resulting in semen abnormalities. Sleeping naked can avoid the local temperature increase caused by wearing underwear, promote sperm production and improve sperm quality. There are also some disadvantages for boys to sleep naked, such as easy to cause skin infections caused by mites, sleep stirrup quilt caused by cold and so on. It is recommended to pay attention to the bed sheets and covers when sleeping naked, to ensure that the private hygiene and safety.