The Biobrite Sunrise Clock can wake you up naturally like a sunrise and then gradually put you to sleep like a sunset as if you were laying under the open sky. There is a back up audio alarm system to help your body get used to waking up to the light as it naturally should. Most don't need the sound alarm, but if they do they only need it for a short time before they naturally start waking up to the light more rested. The Biobrite Sunrise Clock is a very quality product and has a couple different models varied in features and price.
This article by Business Insider and re-posted by the Washington Post online mentions getting a Biobrite Sunrise Clock as one of the top 7 things you can do to wake up better and get to work on time consistently.