I think a more interesting problem to solve is how to get someone out of bed more pleasantly and with less sleep inertia. Something like the philips natural light alarms are a step in the right direction.

TBH, I would kill to have the entire ceiling of my bedroom covered in a planar array of natural light bulbs that gradually light up at the time I need to get up and I want them to reach the full intensity of the midday sun in the Sahara.