Sleepy, Have you ever seen a cat sleep so deep it falls off what it is on?

I had a tuxedo type cat (think Sylvester) who use to like to sleep on the low wall separating the jacuzzi from the rest of the pool (it's dry when the filter's not running). I watched her roll right off it in to the water. After she dragged her self out of the pool, she dripped her way into the house with the "don't bother me" look.

Yes, sometimes my cats are asleep, and they curl over in their sleep and fall of the sofa:) They do it a lot. They also make a lot of paw movements while they are dreaming. Sometimes they look so happy in their sleep you wonder what they are dreaming about:) They are so sweet:)

I have a cat who tries to climb along things that are too small for her and falls off bringing down everything on the surface with her. I've never seen her do it because she is asleep though, she has nearly fallen off my lap whilst very relaxed though.