Dreem — Bone Conduction Pink Noise

https://dreem.com/

Found this product. It claims to track sleep patterns, and even plays pink noise when it determines that you're in "light sleep," in order to coax you back into a deep sleep.

The audio works through bone conduction. Theoretically, one could just purchase an inexpensive pair of bone conduction headphones on Amazon and play white/pink noise through them.

I haven't been on this forum lately, but I thought this may help a few of us. If anyone has experience with bone conduction headphones (to treat sleeplessness), please let us know.