Restless babies love iPhones.

You use your iPhone to surf the 'Net, listen to tunes, even watch movies. But a new iPhone application can give you -- and your baby -- a good night's sleep.

It's called Sleepy Baby and it's designed to help your little one ease into a peaceful slumber. Experts say babies sleep better when lulled by repetitive, monotonous sounds like a whirring fan, bubbling fish tank, ticking clock, or vacuum cleaner. That's because these noises remind infants of the peaceful womb when the sound of the mother's blood steam and heart rate created constant rhythmic beats.

This neat iPhone application is only 99 cents and comes equipped with five sounds: Heartbeat, fan, vacuum cleaner, white noise, and "Shhhh!"

No, it won't breastfeed or potty train your little one, but here's to a good night's sleep!