Whether or not to wear underwear while sleeping depends entirely on your personal comfort, health habits, and nighttime routine. While wearing cotton underwear during the day is recommended to protect the skin and prevent irritation, sleeping without underwear at night—often referred to as "going commando"—can offer several health benefits. First, sleeping without underwear improves airflow, allowing the genital area to "breathe" and reducing the accumulation of moisture. Lower moisture levels decrease the risk of common fungal or bacterial infections, such as yeast infections or folliculitis. For men, avoiding tight underwear at night helps keep the temperature of the testicles lower, which is beneficial for optimal sperm production and reproductive health. Furthermore, eliminating tight waistbands and seams prevents skin chafing and can even improve the quality of your sleep. If you decide to sleep without underwear tonight, ensure that your sleepwear and bed shee...