When my son was going to college in Rhode Island, he adopted a cute tabby from the local shelter. At the time he adopted her, the shelter told him the kitty had been abused, that made my son want her even more. Every night, around 4:00 am, Grafix would jump on his bed and swat at his face until he got up. Turned out that she was hungry. He'd feed her then go back to bed. Grafix would have her snack, check out each room in the apartment, then when Mike was just about asleep she'd get on his bed, walk up his chest, give him a big kitty kiss on his face then curl up next to him and fall asleep. Glad to hear that Felix has settled down somewhat, could it be that he might be hungry?