The only positive thing that works for my ds7 is earning "minutes". His bedtime is 7.30pm - but he can earn minutes in many ways that he can then redeem to stay up later. We keep a log of his minutes - we randomly give them to him, usually 5 at a time - but he can also lose them. This has worked way better than long term goals - such as getting so many stickers on a chart or whatever. Last night he used 5 minutes to stay up later so he could sit and snuggle with me on the couch a little longer smile