another exhausting night

unfortunatly the sleeping tablets didn't have desired effect. by 11.45pm teen has been up twice and gives up sleeping now to watch dvds and eat. every hour from now on he comes up to disturb me on one pretext or another. i think he is bored / lonely/tired. but i just want to sleep. he raids kitchen at 2.30am, at 4.50am has shower and by 7am is itching to interact more with someone. so i am woken up, dog is wound up etc. ends up with me telling him to be quiet, he shouts and throws a chair. great on a sunday morning for neighbours. so teen is now on computer, i am up and dog is really wound up, great mood to start a relaxing sunday in. all my hopes for a refreshing, relaxing sleep last night were dashed. i have a really bad headache. i don't know what else to do to help teen get a full and proper nights sleep, or at least leave me , his sister and dog alone all night so we can get much needed sleep. i will have to try and cope with another day by counting to 10 and staying calm.