The big reason I use full pans in my cages is so babies have somewhere soft to land.
On the day of birth they are trying to climb all over and do fall even though from short distances.I keep about 1 1/2 - 2 inches of shavings on the whole floor space.
They do have their pee spots so every day or 2 I removed the soiled spot. I sweep the cleaner stuff into their pee spot. Vacuum droppings from the open floor, shelves & huts. I add new shavings in the open/play. Then once a week or so it all gets removes vacuumed and wash down.
I used it do them all the same night, but now I do a few every night.
I love my shop vac
weird eh!!!!!
Raspberry is only a baby yet.
I always graduate babies into bigger cages.