Since newborns sleep up to 18 hours a day, we ensured our fabric is the comfiest and softest in all the (dream)land. We've attended to every detail, starting with the buttery-soft fabric to give this set the right bit of stretch. The long-sleeve top has an envelope neckline (for easy on-and-off) and low hip length. Ankle-length pants feature a cozy fold-over waistband.