this alarm clock be wonderful . my wife hate wake up to my phone vibrate on my night stand , so she think she would like a more natural approach , such as a sunrise . I personally do not think it would be that great , but , it be . it start with red light , slowly fading in to bright white light . what would seem merely for aesthetics , maybe underestimate . Red light be much softer on the eye than white , so a logical gradient between the two would produce a gentle awakening . plus , wake up due to a light source naturally stimulate the brain -lrb- and in turn , the pineal gland -rrb- to reduce the amount of melatonin present in the brain . this all translate into a more natural , gentle awakening . pro : gentle awaken adjustable sunrise length radio build in really bright bulb con : my wife turn the radio to country . overall , this be a great unit at a great price , give the fact that it wake up naturally and without the racing heart . if you be a `` snoozer '' like I and be always set it half a hour ahead of when you really need up , just simply lengthen the sunrise time .