The whole thing was a very interesting experience. I was sent a heart rate monitor in the post and attached it to myself (it was small!) for three days. It measured my heart rate and from that drew conclusions on how much sleep I was getting, how much exercise, how much stress and much more. I went through the results with Nigel Stockill of Firstbeat and you can hear just how detailed the analysis is here.
If you listen and would like to see the results printout for my three days under observation send me a message and I will forward it to you. (Use email – email@example.com)