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2. 8 Headphones You Can Comfortably Wear to Sleep - AOL

   www.aol.com/8-headphones-comfortably-wear-sleep...

   Sleep A10 Bluetooth Sleep Earbuds. These earbuds are specifically designed for sleep use, and use a noise-blocking design rather than active noise canceling (which some claim is better for a truly ...

3. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   Learn how noise-cancelling headphones use active noise control (ANC) to suppress unwanted ambient sounds and improve audio quality. Find out the theory, applications, benefits, drawbacks and history of ANC technology.

4. Do anti-snoring devices actually work? - AOL

   www.aol.com/news/anti-snoring-devices-actually...

   While snoring is a common symptom of sleep apnea, they’re two very different things. “Think of it as a spectrum,” says Siegel. “There’s normal quiet breathing, heavy breathing, light ...

5. 8 white noise machines for better sleep - AOL

   www.aol.com/news/8-white-noise-machines-better...

   Sleep experts say using a white noise machine can improve sleep. Here, editor-tested picks from Hatch, HoMedics, YogaSleep and more. 8 white noise machines for better sleep

6. Active noise control - Wikipedia

   en.wikipedia.org/wiki/Active_noise_control

   Active noise control (ANC) is a method for reducing unwanted sound by adding a second sound with the opposite phase. Learn about the history, applications, and principles of ANC, also known as noise cancellation or noise reduction.

7. List of Bose headphones - Wikipedia

   en.wikipedia.org/wiki/List_of_Bose_headphones

   Learn about the history, features and models of Bose headphones, from over-ear to in-ear, wireless to noise cancelling. Compare the specifications, reviews and awards of different Bose products.