wtf is there to measure while your sleeping...
I've lost over 200lbs in the last 3 years thanks to devices like fuelband, HRM, etc...I love to see graphs and numbers and use them to make me go better, fast, stronger. It pisses me off to see flatlines on my graphs lol
i'm 6'5", 165lbs. losing 200 lbs would have devastating effects on me.
i mountain bike, run, slack line, play a bunch of different sports and it keeps me in shape. i also sit at a computer for 8 hours a day while at work. i would love to track my "fuel points" for the fun aspect but I would also like to sleep more soundly at night.
sleep it critical to everyone's activity and it's just as important to monitor because unlike losing weight and eating healthier, sleep doesn't really have anything to "show" for itself.
so to each his own?