Starting April 2009 we are testing the aXBo for determining our sleep patterns.
This is done as part of an evaluation if this devices are capable of enhancing our sleep and what (time) causes things to misalign (e.g. noises round the house).
So, the aXBo has a nice USB interface that, combined with some nice tooling, generates these nice graphs
Nothing to see/determine yet, we need (lots of) more data before we come to conclusions.