Aw, I love when critters are falling asleep, or trying to. I've been lucky to always have cats who didn't mind me tossing and turning. But the feral I tamed was the best at that--he was just the most tactile kitty ever. And watching this colony that I care for (they have a little portable green house that I fitted with beds and blankets and I can watch them from my sofa), they keep that kitten/puppy litter pile up thing even as adults.