Adaptive Sound Technologies is a small business established in 2009 specializing in sound technology for personal care.
Psst — it’s compatible with speakers *and* headphones, so if you’re sharing the room you don’t have to subject your partner to it.
Promising review: “I have suffered from insomnia all my life, and have found if I fall asleep listening to something I sleep better. I tried falling asleep to the TV, but invariably around 3 a.m., I would wake up listening to infomercials. Then, while traveling, my husband and I stayed in a very nice hotel that had this product in our room. I tried it, and slept like a baby the whole time we were there! I knew I had to have one at home, and ordered this as soon as we got home. I love that it has so many different sounds to choose from, as well as volume adjustment. You can leave it on all night or set the timer to shut off. This is a fantastic product, and while not inexpensive, in my opinion, well worth the money.” —Tamstrat
Get it from Amazon for $89.95+ (available in two colors and two designs).