What Are You Doing On The Bed--Update

For over a week, Rowdy hadn't got on the bed, after the last episode I wrote about.  Now for the last four nights at around 5 to 6 AM, whenever I get up to go to the bathroom, he has got off his blanket and jumped up onto my place on the bed.  When I come back into the room and with an angry tone of voice, I tell him NO and to get down.  He only hesitates for a second, before he jumps down and that's that for the night.  What am I gonna do with him to get him to stop?!?!