https://www.linkedin.com/pulse/sleeping-naked-makes-you-healthier-wealthier-dr-travis-bradberry

"Sleeping naked has a slew of health benefits, including helping you to lose weight. A study conducted by the US National Institutes of Health found that keeping yourself cool while you sleep speeds the body’s metabolism because your body creates more brown fat to keep you warm. Brown fat produces heat by burning calories (300 times more heat than any organ in the body), and this boosts your metabolism all day long to help you lose weight. In addition to the metabolic effects of sleeping in the buff, removing your clothes improves blood circulation, which is good for your heart and muscles. The quality sleep you’ll enjoy also increases the release of growth hormone and melatonin, both of which have anti-aging benefits."