I have a crazy high metabolism as well because I am only 16. They work great for me though. I have a small case of sleep apnea and I used to sleepwalk every night. I also would wake up multiple times in the night thinking I had to save the world or something (crazy dreams). But since I started taking need2sleep I have only sleptwalk once and it was minor and I haven't woken up at all. I feel very well rested and energetic in the morning as well. Two thumbs way up!!