Okay, I think I want either of these:
The
SunRise dawn simulator ($99.95) has a 60 watt bulb that slowly gets brighter over a programmed interval (15, 30, 60, or 90 minutes). [This one is sadly out of stock.]
The
Sunrise System ($169.95) does the same, but the light source is a 10,000 lux light box.