If you can deliver on the promise, this would be worth way more than $150 to me. Probably more than $500. I'm a light sleeper and I live in a city - not a great

If you can deliver on the promise, this would be worth way more than $150 to me. Probably more than $500. I'm a light sleeper and I live in a city - not a great combination. But I am for now a little skeptical: - I have never used a pair of earbuds or earplugs which are comfortable for more than ~20 minutes. This includes soft foam earbuds and plugs, small-sized musician earplugs (I have tiny ears), and earplugs custom fit by an audiologist. - Even that custom fit pair (which I bought for sleeping) doesn't work for sleeping: I'm a side sleeper, and sleeping on my side applies a little pressure to the ear canal. It's enough that those custom fit earplugs don't fit right when I'm on my side. - Those custom fit earplugs are not even close to mirror images of each other. It's not obvious to me that the same piece of foam can be appropriate for both ears, no matter how deformable it is. My main point of feedback: focus on comfort - specifically sleeping comfort for people with odd ears and odd sleeping positions - over everything else. I would pay piles of money for earplugs comfortable enough to sleep in with say 10dB reduction, far better that than not-quite-comfy enough smart earplugs with 70dB reduction. Similarly, I would happily sacrifice battery life, aesthetics, cost, smart features, etc. for comfort.