1. Break outs Cortisol levels naturally decrease while we sleep which allows the skin to regenerate and protect itself. Missing out on sleep will disrupt your sleep cycle which can lead to breakouts because your skin can not heal in a proper way. 2. A good night’s sleep can keep you looking younger When your body does not get enough sleep it doesn't produce much human growth hormones which stimulate cell production. The result your skin won’t be as thick. Without time to produce new cells to fix yesterday’s damage your skin starts aging plus collagen may prematurely stiffen which results in fine lines and wrinkles. 3. Your skin will look dull A lack of sleep can promote dry and flaky skin. Not sleeping enough can also lead to inflammation with skin-barrier dysfunction, leading to lack of hydration. 4. You defense system weakens While we are sleeping our skin starts producing protective antioxidants for the next day. Antioxidants are important for our body because they reduce free-radical damage to the skin from UV-rays.