New Slumber Sounds. Your Baby Will Fall Asleep In A Matter Of Seconds.Your baby will fall asleep in a matter of seconds - That is our guarantee! What is Slumber sounds? A collection of carefully selected sounds, that will help calm down your baby and sooth him to sleep. We have 2 collections: Nature sounds - can calm down your baby and sooth him to sleep in no time. Colic relief collection - will help to calm down a baby with colics or cramps. [Read all benefits.. ] How it works? Sounds in our collections are made with calming effects and sleep induction in