Temperature (how hot or cold you feel when snoozing) has an important role to play when it comes to how well you sleep. This is why we wake up if we feel too warm or too cold. Sleeping naked can promote good sleep by reducing your body temperature and helping you cool down. You will also stay asleep longer when your body is in a comfortably cool state.
This is where skin health comes into play. How well you sleep (or don’t sleep) can manifest in your skin. And we’re not only referring to dark circles under your eyes when you don’t get enough sleep. A 2013 study in the journal Sleep found that sleep deprived adults had hanging eyelids, more swollen eyes, darker circles under their eyes, paler skin, redder eyes, more wrinkles and fine lines, and more droopy corners of the mouth than those who slept enough. While puffy eyes or hanging eyelids occur because of fluid buildup under your eyes, pale, droopy, and wrinkly skin come about because of dehydration, per a 2020 Korean study in Skin Research and Technology. Now we know why people use the term “beauty sleep”: Good rest can make you look better.
On the topic of wrinkles, sleep influences collagen production. When you’re sleeping, your body produces higher levels of collagen, the structural protein responsible for skin elasticity and youthfulness. Plus, lack of sleep can cause spikes in your stress hormone, cortisol. This can hamper collagen production as well. The result? Older-looking skin.