The Graco Sound Machine helps your baby fall to sleep and stay asleep. It offers 12 high-quality soothing sounds, including lullabies, nature sounds and white noise. There is also a MP3 plug-in to calm your baby with a customized playlist. The timer option automatically turns off unit after easing baby to sleep. And should you want to peek in on your little sleeper, the soft glow nightlight will show the way. Night-night, baby!