Why is my eye red and pussy after a night?

Who knows?: Do you wear contact lenses? Maybe you are getting pink eye? Maybe you slept too hard on that side? You'll know better in a day or two. If you wear contact lenses, you must see an ophthalmologist promptly when you get red eye.

Blepharitis: Sounds like an eyelid and eyelash problem. See an eye physician. While you wait to be seen wash your lids and lashes with baby shampoo or ocusoft lid scrubs. When you see an eye doctor they will check for other diseases like glaucoma, cataracts, diabetes, etc.