I bought this for my wife because mine snoring so noisy . Been married for more than 4years and mine snoring has gotten worse to the point that My wife pack up her pillow and blanket in wee hours to move to the guest room. This product solved our problem :) In less than a week She got the hang of how to put it on effectively and learned some few tricks such as squeezing it hard with her thumb and point finger while rolling it until it's thin enough to put in the ear canals. Ears may not be symmetrical so you have to learn the best angle as what may prove to be effective, might need better angle on the other. These are disposable, but She end up reusing them a few times since they are very well made and quickly expands back like-new.