Change your sleeping position
To avoid puffy eyes, if possible, raise your head with more than one pillow and sleep on your back. Because, if you lie flat while sleeping, moisture builds up in the skin around your eyes. If you ensure that your head is slightly higher and your neck is sufficiently supported, you can reduce the occurrence of swelling. Besides that, going to bed on time is incredibly important for your health. Also try sleeping on a silk pillowcase for a better night's sleep and soothing effect on the skin.