I got some muscle relaxers called tizanidine and these things knock me out. Anytime I feel overworked or restless, I take one of those bad boys and sleep like a baby. Wake up the next day feeling like a new man.. even if I only get 6 hours of sleep. They work good but arent something Id reccomend taking too often. I tried that animal pm shit just to see how it worked and got nothing from it other than gas from swallowing 10+ pills before bed. After a week I quit using them.