It can be hard to sleep when you are having sinus issues. This product relieves your sinus pressure and helps you to sleep. Whenever I have taken it, I find that relief comes fairly quickly and it also helps me sleep through the night. I wake up and still have some congestion relief and am well rested. You need to make sure you have the time to get a full night of sleep when you take this because it WILL make you drowsy and you will want to sleep. This was the only sinus relief product I had in the house one morning Effectiveness This is extremely effective at both helping relieve sinus congestion and helping you sleep through the night. Ease of Use The only thing that isn't easy is getting the pills out of the bubble plastic/foil they are on. Sometimes that can be a challenge. The pills are semi large in size, but they do go down pretty easily even though they are larger than most. Immediacy Within 15 minutes of taking it, you feel relief and within a half hour, you are ready to go to sleep for a nice seven or eight hour restful sleep.