Hamilton has always had the run of the house and usually sleeps in our bed with us. My husband is a very heavy snorer so I tend to sleep in the extra bedroom if his snoring wakes me up. It doesn't bother Hamilton who usually moves in my spot and sleeps there all night. However, for the past week Hamilton has been coming into the extra bedroom and scratching at the carpet. He will scratch three or five times, lie down and then get up and scratch again. I tell him to stop, he does and then starts again as soon as I get back into bed. I finally have to take him out of the room and shut the door so he can't get back in. He will then go and sleep on the couch in the living room. Now as far as we know, Hamilton only does this at night when someone is in the room, during the daytime he will sleep on the extra bed if he goes into the extra bedroom. Any theories as to why Hamilton is doing the scratching? I have tried to get Hamilton to jump on the bed with me when he comes into the room but it's a twin bed and I guess he doesn't like sharing such a small bed.