AN EASIER TRANSITION FROM SWADDLING TO ARMS FREE SLEEP: Once your baby starts to show signs of rolling, It's time to stop swaddling and transition them to arms free sleep. This can often be a tricky time for babies and parents.Specially designed to provide the secure feeling of a swaddle while the zip and off wings allow a gentler and gradual move to arms and free sleeping. Once both wings are removed, Swaddle Up Transition Bag becomes a beautiful sleeping bag and now that's genius! DESIGNED FOR YOUR BABYS SLEEP ROUTINE: Our uniquely designed zip off wings allow for one arm to be free & the other swaddled, maintaining that familiar swaddled feeling. After a few nights, simply remove the remaining wing that so that both arms are free. This is an easy way to achieving arms free sleep whilst helping to preserve an established sleep routine. SWADDLE IN SECONDS,TRANSITION IN DAYS: Swaddle perfectly, every time, in seconds! Unlike complex traditional swaddling blankets that are often too tight or too loose and that come undone after a short time, SWADDLE UP Transition Suit has one main zip, that's it! No complicated wrapping, no scratchy velcro, no fussy studs, just a super easy, convenient and simple to use swaddle that's perfect for any one.The genius twin zipper also means quick and easy diaper changes, anywhere, anytime. MADE FOR SAFER SLEEP: Unlike traditional swaddling, blankets that can easily come loose during sleep time & cover your baby, the genius yet simple design of SWADDLE UP Transition Bag, stays on throughout sleep times. Sizing is designed according to babies weight. All of our sleepwear is available in a range of luxuriously soft fabric weights to allow for different room temperatures.The double zipper is covered by soft fabric top and bottom to help prevent baby from pulling on these items. OUR ORIGINAL MID WEIGHT FABRIC: Our super soft, specially woven, original fabric with 360 degree stretch, provides subtle sensory feedback to your baby like a gentle hug for calming comfort. An ideal choice for MODERATE room temperatures between 20 and 27 degrees. Once your baby show signs of rolling over our Stage 2 Transition Sleep Bag and Sleep Suits help maintain an established sleep routine and keep your baby settled during the transition phase. These products continue to provide secure feeling of a swaddle and the zip off wings allow a gentler and gradual move to arms-free sleeping.