Key features of the cocoonababy s3 tummy band soothes your baby by applying light pressure on their tummy slope of the cocoonababy calculated for babys optimum well being adjustable removable wedge enables baby to lie on their back and to be wedged into the nest at the right height made from materials allowing baby to move freely and to turn their heads limits gastric reflux fitted sheet is made from 100 organic cotton comes with free fitted sheet suitable from birth to 6 months dimension