[Bane]

I would not sleep in your contacts unless they were designed to be worn like that. I used to do that all the time, but the last time I went to the eye doctor she could tell I was doing it and told me to stop. The blood vessels in your eyes get larger and more pronounced to make up for the lack of oxygen getting to your eye. The end result if you do it long enough is having bloodshot eyes 24/7/365.