Yes, they do choose to sleep like that. Their "bed" is a "garden tub" - I have two of them that I use for "whelping boxes" when we have pups. Many "breeders" use kiddie swimming pools, but these tubs, while more expensive, are also more durable. They're sturdy, little pups can't crawl out, and they're easily cleaned. When I don't have "babies", the "big kids" like to sleep in them. However, there are TWO - but you'll notice they're all piled into ONE. The 2nd one is just inches from that one. Silly beagles! When they're not sleeping in the "black boxes", they're sleeping on the futon - all piled up together in one big beagle pile. I guess they're comfortable, they do it all the time :toofunny: