I am re-rating this. Khufu is the love of my life. I just slept the best sleep I have had in maybe 7 months. It put me in such a deep sleep that I woke up from 4 1/2 hours later feeling a little tired but still the most well rested I have felt in forever. I don't feel groggy or like I have no energy, but like I can go get up and do something! It is amazing. HIGHLY RECOMMEND!