been using it for years as someone with insomnia.
I've been using these headphones for a little over 2 years now with 0 issue, and just recently when one of the speakers broke I discovered they sell replacements for just the speaker unit (so you don't have to fork over for a whole new mask) which is incredibly cool for a business in this day and age when so many companies are trying to milk you for all your money's worth
Had some issues with the new unit but Justin from Sleep Dreams is helping me out and the support has been excellent.
I have some medical conditions that make sleep a difficult time for me, and part of that is that I'm very sensitive to light, sound, and physical irritation (like things too tight, or itchy, or poking into me) when trying to sleep. This mask is adjustable to ANY size you need to get a perfect fit (previous headbands I'd tried that were not adjustable were always too tight), the velcro that holds it closed has not worn down even a little over 2 years, the mask has not worn down over 2 years despite being used every night and washed regularly, and the design of it is phenomenal with it even having a really soft little flap the crosses the bridge of your nose to block nearly 100% of the light.
The audio quality is also really decent, and due to the high-end Bluetooth that it uses there's no static or background noise that I've gotten from cheap Bluetooth headbands before.
I recommend this unit VERY highly, I cannot fault a single thing with the design.