I was 100% skeptikal when I first seen these, but after doing research and getting my first order, I have never canceled my subscription. I swap between hybrid and uplift,and thwy are both great. My friends are always asking me, you got the yellow ones on you. Those are my go to for sure, but just tried the sleepy, an no doubt, they worked as well, and seen my deep sleep increase on day one. I have 2 subscriptions now, and just ordered some drinks. Keep up the good work, I love them, and so do my friends. Just need them to get their own subscription now!!