I am NOT a morning person. I have a lot of trouble getting out of bed, especially when it's dark out. So I saw this and decided to try it out. I have the setting so the sun starts rising 15 min before my alarm should go off and the alarm is chirping birds. I am awake before the birds chirp every morning. Now, I'm not saying this is a miracle worker...I still HATE getting out of bed, but it is so wonderful waking up naturally instead of to an obnoxious BEEP, BEEP, BEEP, BEEP! I absolutely love it and would definitely recommend it...actually 4 friends and family members have already put in their order. It's a must have!