SIMULATE A NATURAL SUNRISE & SUNSET: This sunrise alarm clock is designed to wake you up or get you to sleep naturally with the gradually increasing or decreasing brightness from level 1 to 10. Stimulate a natural sunrise or sunset in your bedroom. 6 OPTIONAL SOUNDS & FM RADIO: Morning, Birds Singing, Ocean Waves, Violin, Forest, Beeping and your favorite radio shows can all be set as your o'clock bell.