I cannot live without these earplugs… I cannot live without these earplugs for sleeping! I have severe sleep disturbances and with a noisy neighborhood and a snoring spouse, I can finally get the rest I need. SO comfortable!

Good product Good product. Quick, efficient service

Workout resilient Fit was good…. Earbuds really stayed put during a tough workout - both during heavy weights and zone 5 HIIT training…

Price is "custom", execution is not Price is definitely "custom" (one pays a premium for something that's customized to oneself), but the execution is absolutely not. The ear plugs are really small, and while they fit reasonably well, they do not insulate sound like their larger cousins from ADV sound do (ADV sound is the side of the company that does custom IEM tips, and those both fit in well, and insulate sound much much better). Now I do need custom tips to help me sleep, but these are simply not the solution. They are simply way too small and shallow to work well. In fact, Mack's ear plugs work a lot better (though they are disposable ....) I feel cheated.

Expensive and worrisome Although the earplugs are advertised as being for sleep, sadly they do get a bit painful in the middle of the night from the pressure they place on the outer ears. And they do create a pressure in the ears that possibly seems dangerous to the health of the ear. I’m not convinced they are actually safe.