Many newborns are troubled by colic and reflux difficulties that are best addressed by sleeping inclined on Summer Infant's Resting Up Sleep Positioner. Keeping your baby's head raised while she sleeps on her back in the center of the crib is the sleep position that the American Academy of Pediatricians recommends, and that's exactly how she'll lay on the Resting Up Positioner. It's machine-washable, with breathable FloThru fabric and comfy AirCare memory foam, with an ingenious TOTS reminding system that helps prevent Flat Head Syndrome (Plagiocephaly) by helping parents remember to alternate the direction that the baby sleeps in.