Sorry to revive an old thread, but I wanted to chime in with some experience. I used to live above a glass dumpster that got emptied three days a week at 6am, and so I started sleeping with earplugs. I've also spent a lot of time on airplanes. I've tried literally dozens of kinds of earplugs over the years, and
HEAROS "Ultimate Softness" plugs are
by far the most comfortable I have ever used. I use them every night when I sleep, I use them on every ride longer than 5 mins, and I sometimes even use them when taking exams. I've found that they last a long time; I can use one pair for 20-30 wearings before they go flabby, and they don't chafe my ear canals like, for example, the cheap yellow E-A-R kind. Highly recommended.