I hardly ever use it, haven't used it for months, got it out the other night and settled down to sleep with feet snug and warm.
Steppecat comes into our bedroom. Jumps to his usual place on his blanket on the chest of drawers. I hear him pause, think and then turn round and jump on to the bed. Stomps over (not light on his feet, obviously closely related to an elephant)
Gets to hot water bottle and curls up, pushing my feet off.
8 hours later still there, hasn't moved, hot water bottle is still hot due to all the insulation!
Now he rarely sleeps on the bed these days, since we got the dog, even though dog isn't allowed in the bedroom.
Next night, full hottie, curled up to sleep, he comes in and makes straight for the hot spot. Stays all night.
Last night, no hottie, didn't even bother getting on the bed.
HOW DOES HE KNOW? Do hot water bottles give off a weird smell???