Hello sleep! Goodbye jet-lag!

I bought this unit after reading the book in praise of Tim Ferriss The 4-Hour Body: An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman. The author explains that he always had problems falling asleep and that daily exposure to the light produced by this unit has been very effective.

I also have trouble sleeping, and secondly, I travel frequently to the US and Asia. The time difference does not help to have quality sleep and I find myself very often exhausted in the morning.
So I decided to invest in this product and I do not regret it. I sleep better, period. I also successfully tested the proposed program for travel east (exposure to light more and more early morning 2-3 days before departure).

The device itself is nice and compact. I chose this model because it works on batteries (once charged, expect 4 to 5 days of use).

A good investment!