We use Melantonin
I use it Menopause Sleep issues and it works well. Son 13 yr takes it at night and so does Daughter 11 yr for sleep for ADHD. and we have been using it for a few years now.
deepbreathe,
Melantonin is a hormone that we all produce. It is what makes us feel tired when it gets dark. Many adhders do not produce enough.
I would cut drinks out within 1 1/2 hrs of bedtime and allow a snack of carbs,ie: graham cracker or the like. Carbs help with sleep ,too. Stay away from juices or soda before bedtime. Start with a small dose of melantonin and work up. Too high a dose can cause nightmares in some people. You can purchase melantonin over the counter. I get it at Walmart.
Let her get as much exercise after school to help get rid of excess energy. But, I wouldn't recommend it before bed. It can actually stimulate her and interfere with sleep.
My 13 yr old has done well with 1/4 tab and now 1/2 tab of 25mg seraquil, just for the sleepy side effect. BUT if she takes her Concerta too late on the weekends, then this med won't even help.
Tried benedryl, that gave her opposite effect!
What do we know about melatonin? If you find out, let me know.
Also doctor put her on ditropan to help with day and nightly wetting. That has helped us with bedwetting challenge, not to mention daily trickle problems.
Good luck.
Eliminate water as well.Make her run around or play with a ball, or jump rope, whatever she can do to vent all that excess energy.