Mine have 2 "proper" cat beds that they'll go in occasionally, Fergus more than Polly though. They also have a carboard box with a blanket in, which Polly tends to like. At the moment though, Polly sleeps on the windowsill, whether it's cooler on there? Fergus now seems to like curling up on last weekends newspaper which is still on my bedroom floor. So yes, they are very fickle. There's lots of different options for them and I think they just tend to go where they fancy.