I think this is a terrific clock. I use it to keep myself on a good circadian rhythm and use only the light as an alarm and not the sounds, turning them down all the way, as the light is enough to signal me to wake up and I don't want to wake my spouse. It is also a radio if you like to wake up that way, but the light is a most peaceful way to wake and the various sounds are more pleasant, birds, water, music, also a beep. . The lights come in colors and the warm yellow is the most natural to me. This has made such a difference. Instead of checking the time too early, and thus waking myself up more, I see no light and relax back to sleep. So it keeps you in bed as well as getting you out of bed.