I have had great sleep with a cap or 2 of rxwheys lights out along with a pump or 2 of SA if I'm feeling froggy.
Lights Out | Recovery & Sleep Aid | Prescription Nutrition
I don't use it that often but when i do it's like a vacation and i wake up feeling great.
If you are constantly having trouble sleeping i would suggest looking into your diet, supplement regime and lifestyle for some potential causes and try to square them away as well.