Hit the Rack has become my go to for recovery and as a sleep aid. This is one of the more efficacious sleep supplements I've tried; it has a calming effect and feels more like it's cooling the engine down instead of just cutting the switch. To me, this means it gets the body ready for recuperation overnight instead of just inducing sleep. It does not cause grogginess in the morning and my sleep feels deeper. Unlike some other sleep aids I've relied on I do not seem to have built any kind of tolerance. I have used this for roughly two months and the effects are steady and consistent-a real added bonus. I highly recommend this if you're looking for a solid sleep aid with added recovery benefits.