My ds is younger but also realy HYPER... so we start saying is getting darker and soon it's going to be nighty night time so pretty much from dinner i'm brainwashing him about bedtime. I talk talk talk about bedtime, read him bedtime stories (only stories about babies/kids going to bed, etc. hehehe the funny ones about animals and jungle are from daytime)...then, as we move into the process, i make him tidy his room (he basically just messes it more, but anyway...) and as we pick the toys we say goodnight TO EACH ONE OF THEM: good night Teddy, goodnight etc etc etc (exhausting) then, whenever he's sick and i can't bathe him, i put some lotion with lavender/chamomile (i think it's by Johnson's) that suposedly hels them relax and go easily to sleep. Then pj's and by that time he's pretty much rubbing eyes, etc.
There ahve been days when we're in a hurry and can't do all the brainwashing and beleive me, he goes to bed all wounded up and it takes me longer to settle him. With this super long routine, he waves byebye to his toys and "gets in the mood" of sleep time.
One of my aunts used to prepare the milk on lynden flowers tea instead of plain water. She had 4 hyper kids and after the bottle they were all SOOO ready to bed...i haven't been on the need to try that one yet but it doesn't hurt, does it?
Good luck!