This little tool is inspired by NASA research into sleep technology to help make astronauts sleepy, when in such harsh conditions that disrupt the body clock.

This new technique is widely documented as a possible solution to the problem.

To trick the body into feeling sleepy, the light will slowly change from blue, to white, then red. The effect is variable depending on how alert you are feeling. The assumption is you will lay in bed with the device close and facing you, as it changes color.

Once the cycle is complete, the screen lock is removed, and your device should go to sleep naturally too.

No-one’s saying this is the ‘magic bullet’ that will send you to sleep. It’s just another tool that may help you to settle.

More : http://www.bbc.co.uk/news/technology-20753888