Hello Red Nose, my 5 mo baby has started to roll a lot in her cot, only from back to tummy. She is unable to roll from tummy to back at the moment. She also likes to sleep on her side. She is very restless and does it over and over each time I put her back on her back. Do I need supervise her sleep to continually put her back on her back during the night? I am concerned based on your information as she cannot roll back, but this also means I get no sleep at all. Can she sleep safely on her tummy or side if she doesn’t have the full roll mastered? We are following all the guidelines, firm mattress, baby sleeping bag with arms out, cot in parents room etc. Thank you

Most babies will be rolling over by 5 months. This is very normal as babies grow & become stronger.
Many babies then prefer to sleep on their tummy or side.
This is not something that needs to be stopped. It is important to make her new environment as safe as possible.
No parent is expected to sit up all night observing baby asleep.

Also ensure that the mattress is firm & flat & there is nothing soft or loose in her cot.
Always place baby on her back for sleep.
How does she go with tummy time when awake?
Is she holding her head up & starting to reach for toys?

Red Nose has the following information now that your baby is starting to roll.

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.org.au/article/what-do-we-do-now-that-a-baby-has-started-to-roll-over