Sleep Error

My 965 falls into sleeping mode, usually when I am at work. The sleeping plan is active For a few days now, my 965 has been going into sleep mode while I'm at the office. My sleep schedule is set for me to wake up at 5 a.m. Around noon, the watch then says I've been asleep since 7 a.m. Before that, say, 10 a.m., sleep mode isn't active. It only goes back to 7 a.m. around noon. @Garmin: What can I do about it? This bug affects all performance data...