I worked at a sleep company up until 2008 and there are a lot of startups and big sleep companies getting into lowcost devices that a customer would own or rent instead of going into a sleep lab. They would do more diagnosis or pre-diagnosis rather than just wakeup timing but I think some had that feature. I know there is a watch that does this.

One tip I would do if I were them were to contact all those huge sleep lab companies and try to get them interested. Insurance covered prescribed factory sleep labs drive the industry.