I have a new favorite spot -- it's what Mom and Dad call "tent" ... basically, they are in bed, usually sitting up, with their legs bent up and the covers over their knees. So I will get under the covers and under their knees. It is so warm and cozy. I'll stay there for a while, sometimes up to an hour, until eventually slinking back out from under the covers.
This is a trick I learned from Josie. This used to be one of her favorite things. Years ago she would sleep under the covers tucked up tight against Mom. Being the youngest of the McKitten-Cats I learned a little trick here and there from the other three. It is nice for Mom and Dad, since we lost Jasper, Josie and Huggy Bear in the last year, to see me replicate some of their traits and habits. I think it's very comforting for them (and me too).