Is this a normal sleep pattern? My wife thinks my Garmin isn't tracking my sleep right because of the amount of deep sleep it says I had. I have a Garmin 235 :
Garmin Forerunner 235 GPS Running Watch Frost Blue 010-03717-48 - Best Buy
Tech review: Garmin Forerunner 245 Music tracks your sleep, runs and swims | The Straits Times