I live in an apartment complex and the people above me are pretty loud. The floors are hardwood and I used to hear them coming home from the bars usually around 2:30am every Friday and Saturday night. Since purchasing this I have had solid sleep without being woken up in the middle of the night. The sound took me a night to get use to but now I prefer having it on. I would recommend to anyone having similar problems.The only reason I'm not giving 5 stars is the product design (ugly) and I wish it was louder.