Nutty silkies. They are all about "the family bed". I must admit at first I was a little panicked. I thought that about 3/4 of them were missing. But when I looked in there were several little heads popped up in there.
Usually they will sleep in 2 or 3 piles, but it's getting pretty cool here at night, it was 44F last night. So I guess it's all about the big pig pile!