I knew these ear plugs would work to block out the noise well enough so I can sleep. That's not the problem I have with ear plugs. I needed ear plugs that weren't going to make my ears sore and cause me to wake up due to the discomfort, as well as ones that actually fit my ears! These ear plugs did the trick! They were easy to insert and when they expanded, my ears weren't uncomfortably stretched.
It's only been a few days, but I had some neighbors throw some wild parties for the holiday weekend (every night!) and they were still going strong at 2am. But, as soon as I put in the plugs, I heard nothing!! However, since it's only been a few days, I also can't attest to the durability of these plugs. Oh well...I have 20 pairs that cost $6. The amount of good nights' sleep I'll get with these will make up for a slight lower durability issue.