Hi there Most of the guidelines assume the baby is meeting normal milestones (ie rolling supine to prone) at seven months. Would the advice change if the baby was rolling early? My baby is five months and is rolling supine to prone. He is just learning how to roll prone to supine. My doctor said to tuck him in at night so he can’t roll on to his stomach. Is this advice correct? Or can I let my baby sleep on his stomach now if he rolls there himself?

Most babies will be rolling over by 4-5 months…....some earlier, some later.
This is very normal as babies grow & become stronger many babies then prefer to sleep on their tummy &/or side.

There is no need to restrain him with a tight sheet - rolling at 5 months is very normal.
Are you still wrapping/swaddling him - cease wrapping.
*It is important that you move him from bassinet to his cot now.
*Baby needs arms free & the space of the cot to roll safely.

Now that he is rolling it is important to make the environment as safe as possible for this to occur.
Continue to place baby on the back to sleep.
Ensure cot mattress is firm, well-fitting & flat.
Ensure there is nothing loose or soft in the cot.
Preferable to use a sleeping bag when rolling that has appropriate size neck & arm holes.

Red Nose has the following information when baby is rolling.
Give baby extra tummy time to play when awake and supervised as this helps baby to develop stronger neck and upper body muscles which in turn enables them to roll back over.
Make sure that baby is on a firm and well-fitting mattress that is flat (not tilted or elevated).
Make sure that baby’s face and head remains uncovered (do not use lambswool, doonas, pillows, cot bumpers or soft toys)

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

*Do not use any devices designed to keep baby in a particular sleep position.
https://rednose.com.au/article/what-do-we-do-now-that-a-baby-has-started-to-roll-over