My 4 month old has recently started rolling back to stomach and she can do it in her sleeping bag (it is 3-12 month size and allows lots of arm movement) although is not able to roll in the bassinet due to confined space. We tried one day of naps with arms out in the bassinet but she just kept playing with the sides and hardly slept all day. Do you recommend firstly doing arms out in the bassinet or moving her to the cot first and then transitioning to arms out (and is this safe given she has access to her arms even though they’re still tucked in)?
Most babies will be rolling by 5-6 months of age.(some earlier/some later) - this is a normal development stage which may even start around 3 months of age. . at this stage it is important to move baby from bassinet & cease wrapping/swaddling. (baby needs arms out).
Red Nose has the following information about babies rolling:
It is essential to discontinue wrapping as soon as baby starts showing signs that they can begin to roll, usually between 4-6 months. If you wrap your baby, consider baby’s stage of development. Leave arms free once the startle reflex disappears around 3 months.
If you are using a bassinette it is time to transfer your baby into a cot as soon as they first show signs of being able to roll.
......As babies grow and develop they become very active and learn to roll around the cot. At this time, continue to put them on the back at the start of sleep time, but let them find their own position of comfort. By this stage it is not necessary to wake during the night to turn baby over to the back position.
When you move baby to cot it is important to ensure:
mattress is firm, clean, well-fitting & flat.
cease wrapping - need arms free
there is nothing loose or soft in the cot.
continue to place baby on their back for sleep