well well, the quality sleep comes in the form of Valerian Root, which is mixed in with the 5HTP. That is what aids sleep. I tell you, my experience with 5HTP was negative. I took it for about 2 weeks before rolling, and I didn't roll that hard. Then I didn't take 5HTP for two weeks, took a pill from the same batch and I was fucked up. I don't know, I guess it's different for everyone. until then kiddies... keep on