Lethargy From Sleeping Too Much

If you are constantly oversleeping, chances are you end up having bouts with lethargy the rest of the day.  While lack of sleep is a bad health problem, sleeping too much is not very good either and can have serious consequences in your social, work and financial life.

My girlfriend consistently gets headaches when she stays in bed too long.  This happens a lot on the weekends when she refuses to get up until around noon.  While understandable due to the lack of sleep she gets because of work on normal days,  this affects both her productivity social activities and general mood.  Her weekend basically sucks and, since I’m a part of her day, I am negatively affected as well.

She has recently agreed to work with me to get over this tendency to sleep in for long periods.  We’re trying to figure out a system that can work for us.  Does anyone have any suggestions?