This is a lifesaver. I've suffered from tinnitus (hearing inexplicable high-pitched sounds - an incurable disease) since third grade, about 30 years old. Recently, after the illness, the noise has increased. It was difficult to sleep, especially on my side, and I was very worried. Luckily I found this product. I hooked it up to an inexpensive MP3 player onto which my husband downloaded a good quality track, Brown Noise. (Other options could be white noise, nature/water sounds, or music - just find your favorite music store's website.) This allows me to sleep on my side without hearing tinnitus. (To keep the other ear happy, I run a fan or white noise air purifier in the bedroom.) It greatly improved my sleep quality. I use an alternative down pillow (not foam). I put the MP3 on repeat and it plays all night every night. I use the amp version without even turning it halfway (without it I wouldn't hear the tone through the pillow). It's not too hard on the batteries, even with the amp on all night every night. It tends to slide while I sleep so I can use some sticky glue to stick the shelf backing to it. I haven't used this product for long so I can't comment on durability. But for now I really appreciate it. I ordered a second one to have on hand as a backup.
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