This may be a good device for monitoring sleep, but for those considering a polyphasic sleep schedule, try reading one of many HN threads on the topic: https://

This may be a good device for monitoring sleep, but for those considering a polyphasic sleep schedule, try reading one of many HN threads on the topic: https://news.ycombinator.com/item?id=1464142 https://news.ycombinator.com/item?id=1464142