Dear SunBox: My doctor prescribed a SunBox to help with my circadian sleep disorder. I can’t wake up for work and I’m tired all the time. After using the SunBox for a week, I am able to wake up earlier and get to work on time. This light had saved me from losing my job. It works better than Peet’s coffee. I didn’t know about light therapy for sleep problems but I can say it works! Thank you for a great product! P.S. My cat loves sitting under the light with me. He seems happier too. Thanks a bunch!