Walmart offers Westclox Sunrise/Sunset Stimulating Alarm Clock for $14.99 (reg. $22.97) free shipping on orders over $35.

Product Description:
Wake up naturally with the Westclox Sunrise simulating alarm clock. The unique combination of light and the pleasant audible ascending alarm will wake you up feeling refreshed. Wind down before bed with the sunset simulation feature with the push of one button. You will quickly feel relaxed, rested and be ready to fall asleep. The clock can also be used as a nightlight with dimmable brightness. The LED time display is easy to read day or night. The time display can also be adjusted to be dim or bright. This clock is simple to set and operate. The large snooze button allows you to get an extra few minutes of sleep. The battery backup is optional and requires 2 AAA batteries (not included).