I'm no doctor but try clonidine to help you sleep while detoxing. Be careful not to take to much because it does lower your blood pressure and it DOES NOT work for everyone. I am sure you know this but taking any sort of sleep aid over the counter or not, at least for me, causes resltess leg syndrome in the middle of the night. Clonidine has saved me because not being able to sleep is what always used to break me. It is a prescription drug and that's how I got mine but I believe it's available online (not sure about the legality of buying it online but it's not a controlled substance to my knowledge). Hope this helps and good luck. You may want to consider getting on suboxone and then getting tapered off that because from what i hear methadone causes you to detox for months and months because it gets into your bones.