Allot of ppl don't have the patience to ignore the cat...have them checked by vet first, when behavior changes it sometimes means something medically. Once that is addressed, then everything is well, they'll need to start to ignore it, it has gotten what it wants, so the habit/routine has been formed...you have to be more persistent than they are..also shut the door on them, out of your room, keeps them off your head.
Make sure they get exercise during the day, and you don't have to feed them food in a bowl make eating a hunt, put food in a ball that is from a pet store, they have to roll around to get food, or cut L shaped holes in tissue box, enough for paw to get in and kibble inside. 2 to 3 sessions of play 10-15 minutes, use stick with string or feathers or something to get moving. Chek this out..hope it opens for you...
http://www.hssv.org/LIBRARY/PDF/Behavior/faq_c at_night.pdf