I wake up like that and my doc said it is gravity and it goes down after I have been up for awhile.hope you got some of your favorite choc drop on top cookies for Christmas
It's just fluid, and gravity. The eyes are entirely made up of fluid, and the surrounding tissues will puff up when there is extra fluid in the area. It will just "pool" when you lay down. It won't harm you, unless it just keeps adding each day. Test your weight down.