speaking of sleep..DS suddenly isn't sleeping well lately

TupeloChick

It's actually been more than lately, it's been quite a few months but he is just not sleeping well.

He goes to bed around 7:45 or 8:00 and has no trouble falling asleep. He sleeps well until around 1 or 2 in the morning then he starts rocking in his bed and sometimes sings or laughs. Sometimes he'll cry or ask for a bottle and it can be a good hour before he goes back to sleep. Sometimes he will do this two or three times a night depending on when he first starts waking and how long before he falls back to sleep.

DH and I are at our wit's end, we live in a small one bedroom so we can't split the room or use the living room. 

Any advice, books, videos or whatever I can use to try to get him sleeping well again?