Likewise. That was my primary reason for buying the FitBit originally; I was disappointed at how inaccurate it was, even with the tempered expectation of knowin

Likewise. That was my primary reason for buying the FitBit originally; I was disappointed at how inaccurate it was, even with the tempered expectation of knowing it was just a 3-axis accelerometer. That being said, FitBit et al. do seem to be making headway on getting people to buy into a device that is always on you, touching your skin. That is a prerequisite for any sleep tracker that didn't seem palatable only a few years ago (e.g. Zeo).