We're pretty heavy sleepers and will wake up if there's even a fraction of light in the room; so you have to understand our skepticism of a device that claims to put you to sleep with light. But then again, we're not really the target market for this device.
The LightSleeper projects a light moving in a controlled circular motion on your ceiling, which you're supposed to follow with your eyes. Due to the fact that it's repeating the same circular motion, your mind should become relaxed resulting in you falling asleep. The LightSleeper turns off after 30 minutes, but can be reactivated for an additional 30 minutes each time it is tapped lightly.
The brains behind LightSleeper claim through research that 64% of us suffer from a bad nights sleep atleast once per week, and the designer would know. Kate Evans designed LightSleeper during her senior year due to her own terrible insomnia.
LightSleeper will soon be available at LightSleeper.com for £125.