When I was growing up, I would often envy our cairn terrier, Norman, in the morning. While we were all getting ready for school or work, and eating breakfast in an icy cold kitchen, Norman was comfortably ensconced behind the chair in the living room, about five inches from a radiator blasting heat. I'd stop by to give him a pat on my way to the kitchen, and he would be hot to the touch. And snoring. And looking quite comfortable and content with the leisure of his day.
Nowadays, I often find myself envying this guy, and his ability to get a quality snooze. A cat sleeping on the windowsill in the sun is about as comfortable as it gets: