The sleep recording seems accurate....except that on the Swim 2 (at the moment) it is ONLY including the last sleep portion..ie if i go to sleep at 11:30, wake up @ 2:30 meditate for 5 minutes and then go back to sleep ... ONLY THE time from, say, 2:40 - 8:30 shows up as "sleep"
Maybe the 2.20 beta will fix this?