I was skeptical as to whether these would do much, however, I find them very effective. Almost too effective at times, and I also purchased the Revive drops to help lift the morning fog left from these drops. The sleep drops have allowed me to sleep through very windy nights without waking to every little noise, as well as other things that usually disturb my sleep. They help in quieting that annoying 2am wide awake moment where my brain just won't shut-up. Now, instead of being awake till 5min before the alarm, these drops just slow everything down so I can ignore the grand plans my brain is making and get back to sleep.