1. It's the coolest thing you can do - According to the Los Angeles Sleep Study Institute, one of the reasons people wake up during the night and can’t get back to sleep is because they’re overheated. So being naked can help you maintain cooler body temperature and make you less likely to wake up.
2. It's good for wannabe dads - A 2015 study found that men hoping to start a family or add to theirs shouldn’t just wear roomy boxers, they should sleep naked to improve sperm quality.
3. Less clothes = more happy - A study from 2014 of 1,000 British shows that 57% of couples who sleep sans clothes claim to be happy together, compared to 48% of pajama wearers.
4. It's a stress-buster - “Sleeping naked helps to decrease cortisol, increases the growth hormone and balances melatonin,” explains sleep expert Neil Robinson, “all of which work to reduce stress levels.”
5. Your skin appreciates it - Robinson also says sleeping in the nude can improve circulation and keep your skin healthier.
Source: Whimn