Good for protection, not for sleeping.
I usually wear earplugs every night. I tried these out a few times, and they keep falling out sometime during the night. I think they are too "slippery" to stay in my ear all night.<br /><br />They do, however, work great to protect your ears in loud environments. If you roll them up properly, and insert them in, and let them expand, they are great at blocking out loud noises. Very comfortable.<br /><br />When they expand in your ear after rolling up between your fingers, they expand quite slowly compared to cheaper ones, which is good. This means you have time to insert them properly.<br /><br />Other than them falling out when sleeping, I have no other complaints.
Rating: 4 stars