S Health shows a breakdown of last night's sleep (REM, Light Sleep, Deep Sleep and a sleep score), but for previous days all it shows is a sleep score. I would like to know how each night compares with the other nights... like, am I getting more REM sleep or less? Am I getting more deep sleep or less? The score mixes them all together and so doesn't really give much insight. Is it possible to view the previous day's data?