I’m getting the best results due to my sleeping position, but it is not tracking data.

If I have Pillows for my feet, back and head, I could sleep well without hitting my head on wood, injuring my back or legs.
Including, if I had worn some light blanket around my hips,
another light blanket to cover around my cold bare chest
and some heavy blanket worn around my neck as my warm coat with the tail ends tucked underneath, I could sleep pretty well on my back or sideways. It had annoyed myself when it would not track the sleeping data this morning on April 1st.

Areku Ayaza about Sleepzy - Sleep Cycle Tracker, v1.7