preemie baby clothes pick any item just below. Giving your baby the precious individuality they deserve. Whilst in the Nicu babies this small do not wear lots of clothing. its because they get all the warmth from the incubator. Babies this small cannot regulate their own temperature just yet. This comes later as they move into SCBU. As nurse says your baby is ready to wear layers means they wear full clothing. Items such as vests, a baby grow, a cardigan. One step closer to coming home.