what is the amount of melatonin to take to help me sleep?
1 0.3-5 mg at bedtime is a typical dose. 2  In children with insomnia due to delayed sleep onset, melatonin 5 mg at 6:00 PM daily. 3  In children with developmental disorders (including cerebral palsy, autism, and intellectual disabilities), melatonin 5 mg at 8:00 PM daily.