Bought it for an older dog, who doesn't sleep through the night but the younger one immediately took it so I had to get another one.  Now I have 2 one for each dog and the cat has decided to take over the one in the dog crate.  So today I have ordered an extra small one for the cat bed.  I hope everyone will be happy now.  We can all rest and sleep comfortably.  The best part, is it is light, fits everywhere, folds to 1/4 of the size for travel and needs no electric or batteries.  I haven't washed it yet so can't tell you how good it holds up.  So far all my pets love it, sadly it didn't help the old dogs sleeping problems but was worth a try.