You could use something like this: http://www.fitbit.com/flex http://www.fitbit.com/flex Wraps around the wrist, and has an alarm that vibrates so that (theore

You could use something like this: http://www.fitbit.com/flex http://www.fitbit.com/flex Wraps around the wrist, and has an alarm that vibrates so that (theoretically) only you wake up.