My 12 week old Cooper has been peeing in his bed, not a full pee but then he lays on it. Housetraining is generally going well but he does this everyday. We got him from a pet shop (his home was a metre square glass box with just a bowl of water and a sheet of newspaper) so I'm guessing its just following on from him peeing in his box in the shop. We have a puppy pee mat which he also uses. He peed in the middle of the night in his bed and wondered if it is just laziness. We do have a crate and it's only used when we go out. It's quite small and only want to use it when we have to.