Here’s the skinny on sleep wrinkles, plus what you can do to manage them before they stick around for good: It makes sense, no? If you sleep with your face smashed into the pillow for eight or some hours each night, that’s quite a long time for the delicate skin on your face to endure that pressure. Not only that, but the skin is more permeable at night1, which means it is more vulnerable to transepidermal water loss (also why you might opt for a heavier night cream to seal in moisture; nighttime skin care is no joke). This means your skin is not only experiencing friction but may dry out faster, too. All things considered, of course you may wake up to some folds across your skin. Now, those indents tend to fade when you’re young, as your plump skin is chock-full of collagen and can quite literally bounce back from the pressure. (Think of a firm mattress molding to your weight as you sleep, then filling out once you leave your cozy bed.) But as you grow older and your collagen levels start to decline, you may notice those lines stick around well after midmorning. Basically, your body already wants to give you the beauty sleep you deserve. And supplementing with collagen can support the natural process, making it a little easier to wake up with that lit-from-within glow.*