nested bean zen swaddle - gently weighted swaddle | baby: 0-6 months | cotton 100% | helps to reduce moro (startle) reflex | unisex | tog 1.5 | machine washable nested bean the lightly weighted and adjustable, 2-sizes-in-1 zen swaddle premier by nested bean allows your baby to feel like they are sleeping in your arms. your reassuring touch can signal comfort, security and love to your baby, allowing them to calm and sleep peacefully; the weighted zen swaddle duplicates that sensation. based on the medically proven benefits of touch, the zen swaddle provides lightly weighted areas on both sides and at the center to simulate the feeling of being held. moms who have used the zen swaddle say their babies get up to two additional hours of nighttime sleep. two sizes in one last twice as long – a small interior to keep your baby's legs snug during the first few weeks; the extra-long sack provides additional leg room as your baby grows from 0-6 months. made from 100% luxuriously soft cotton for your baby's tender skin, it is washer and dryer safe.