Your skin repairs itself while you sleep. Collagen production rises. Elastic fibres recover. Inflammation settles. Hydration balance improves.
If you neglect sleep, your skin shows the consequences — earlier wrinkles, dullness, dryness, and irritation.

https://natural-herbal-care-products.weebly.com/herbs/the-role-of-sleep-in-skin-regeneration-and-health