In addition to helping your baby sleep safer, the HALO SleepSack Swaddle helps baby sleep better, too. Its adjustable swaddle wrap immobilizes baby’s arms to prevent the 'Moro' or startle reflex. And, it is the only 3-way adjustable swaddle that adjusts to your baby’s sleep style. Swaddle arms in, one or both arms out to ensure baby’s best sleep. Our Platinum line is made with 100% premium cotton and features an easy to use two-way zipper, plus is packaged in a premium gift box, which is ideal for gifting.