it is kinda a pet topic of mine, a Pip will eat 3000 midges, gnats and misquitoes a night, Pips are the smallest and commonest british species (of which we have 17, if you invclude the nearly nationally extinct mouse eared).
It is common for pups to go looking for a heat source as mums leave them behind sometimes and use a more successful feeding roost nearby but coming back to feed baby. If the pup gets cold (as it will have little fur at this point) it goes looking for mum or and airing cupboards, back of a gas fires, lampshades, picture over a radiator etc etc.
i have been rescuing bats for 10 years now and am always surprised where they turn up.... the weirdest one was inside a knicker draw containing more than one adult impliment
much to the mortification of the young lady concerned who was too terrified of the bat to remove them. She chilled out eventually when i unfortunately in mid explanation whilst untangling said bat from lacey dental floss undies said " it was looking for somewhere dark and warm, thats why it got into your pants".
..erm ah.... "drawer" i hastenly added with much figiting and embarrassment
. :tapedshut