Around the time your baby is 3-6 months of age, your baby will begin to roll to side or tummy. Once your baby begins to roll to side or tummy during playtime, they will soon transfer their learning to their sleeptime and roll to their side or tummy in their sleep. The first few nights that your baby begins to roll in his sleep, he may wake up and call out to you. The rolling milestone is still so new and babies often practice in their sleep. Because of this, they will easily get stuck and will need your help to return to sleeping on their back. After a few nights on up to a week of helping your baby to roll onto his back, your baby will begin to be able to complete the roll on his own and will no longer need your help. Once a baby is strong enough to roll onto his tummy without your help, he is safe to sleep on his tummy at night. Be sure to remove all loose objects such as blankets, stuffed animals, and quilts fromt the crib. During the day, offer your baby lots of time to practice rolling during tummy time. If you are still swaddling your baby at night, you can now begin to swaddle one arm out of your Hands to Heart Sleep Swaddle™ wing while continuing to swaddle one arm inside the wing. After a few nights of helping your baby to get used to having one arm out, remove the wing from the back of the sleep sack, and continue to use the Hands to Heart Sleep Sack™ without the wing attached. You can use the sleep sack until your baby begins to pull up to standing or begins to walk.