I agree with Dan. The paragraph
There is no need to “back-up” your sleep data since your rings alarm bells. Data export ability is very important. Lack of data export disqualifies the product for serious QS users.
mask and phone are always connected that all the data are automatically
stored in the Sleep Sense cloud system.
It would be great if the EGG data is accessible directly.
Furthermore the technology has the potential to allow interesting new software to be build if the system is open for third party developers.
Given that you are making money by selling hardware, making the software open source might be a very good move business wise.
Some users will want to play audio during the night to induce lucid dreams. It would be very valuable if the platform is customizable for such users. There are other application with sleep learning that some user will want to experiment with.
The mask has embedded memory card where sample music is saved. It
provides basic sounds and music with binaural beat – ex. Relaxing music
and rain sound.
That paragraph sounds like you replay a binaural beat session that's prerecorded. That's supoptimal. The session should be created on the fly based on the pattern that exist at the moment.