Why is my face swollen when i wake up?

This happens to me sometimes. It is usually because of water. When you lie flat for many hours to sleep, the fluid in your body can gather in your face. Gravity does this. In the day, when you stand up, it goes away.

Also, think what you ate for dinner. Salty food or alcohol can make your body keep more water. This makes your face look puffy.

Try sleeping with your head on an extra pillow. It helps the fluid drain down from your face. Drinking more water during the day helps too. It sounds funny, but it works! If it is very bad or it hurts, you should maybe speak to a doctor. But it is probably normal.