I have had my unit for abut a week. I was using it last night in bed (you probably don't recommend that), and was about half way through the session when the man's voice came on and asked me to breathe in..breathe out.. at a pace much faster (like 16BPM) than where I had either decended to (about 6 BPM) or even started from (about 13BPM).

I started a new session with the same result.

I tried the unit again this morning (this time seated in a chair), and the session proceeded normally.

What do you think?

Some problem with the unit recognizing my breathing pattern while prone? A unit that may be "going bad"?, or an isolated event?

Thanks for your thoughts.