hi,

there is a project on sleep patterns based alarms using
accelerometers, see
https://garage.maemo.org/projects/sleeppy/
and http://maemo.org/packages/view/sleeppy/

unfortunately, the uploaded version is only in russian. can
someone translate the stuff? thanks.

there is an overrated, popular iphone app and some scientific
tests which clearly show that you cant rely on it but i am only
interested in the data which is recorded.

Blues