While I was in recovery Monday Ma was watching me sleep and watching the monitor for my pulse rate, bp, and breaths per minute. I was having episodes of sleep apnea then. She woke me up several times to get my breathing started again. As long as I stay on this CPAP I don't need a ring thing to track with but it does sound convenient. If it only had a little pulse of low wattage electric power that would ignite the breathing during sleep day or night that would really be nice.I have a ring that tracks my sleep. There are watches that do it too.