I have tried Zzzzquil caplets. Took 1 at 1st because the package does not say anything about how much sleep you need to make sure you have. Well that didn't work. So I took both the next night. Nope- didn't help me fall asleep. Well, okay- so it didn't help me FALL asleep, but once I finally did & when I got up I felt like I had a good night's sleep. So I tried another type- the Walgreen generic liquid form. Took it at 9pm. It's now 10:30pm & I am still wide awake!!! I don't get it! Normally if I take regular Nyquil I can feel my body falling asleep within 30 minutes. Right now I don't feel a darn thing!