I give my 43lb 6yo 1.5 mg about 45 mins before bed and he is usually ready and sleeps well. He used to stay up for a few hours and then he would get up two, sometimes three times in the middle of the night. It works well for him. I am thinking I may try it also due to sleeplessness and my inablilty to go to sleep.
Tina, Mama to Owen 8/06 and Ethan 8/09
wife to Todd since 10/05, still TTC after 31mo and counting.