The recommended age range of having your baby sleep in the same room for 6-12 months is a large range. How is this range justified ? I like to follow the evidence based recommendations but would like some more information in regards to the risk of moving my ten month old to a separate room (as she has outgrown her bassinet) and how this 6-12month recommended range is backed up? e.g why can't they be moved to a separate room at 6 months? We follow all other recommendations for a safe sleeping environment. Thankyou!

Red Nose recommends that parents room share for the first 6 to 12 months.
Room-sharing with a baby has been shown to reduce the risk of SUDI.
Red Nose therefore recommends sleeping with a baby in a cot next to the parents’ bed for the first six to twelve months of life.
https://rednose.org.au/article/room-sharing-with-baby

Sudden Unexpected Death in Infancy (SUDI) occurs in the first 12 months of life. Hence the reference to 12 months.
However 90% of deaths occur in the first 6 months - hence the reference to 6 months.

Red Nose also has the following information:
Parents are not expected to observe their baby constantly.
If your baby is sleeping in a separate room check baby regularly to ensure that the baby remains on the back and the head and face remain uncovered
As baby grows beyond 5-6 months they will move around the cot and roll over; settle baby to sleep on their back but let them find the sleep position they feel most comfortable in.
A safe cot and safe sleep environment is still necessary for babies older than 5-6 months
https://rednose.org.au/article/room-sharing-with-baby

Have a look at the article for further information & link to the references to support the information.

Red Nose recommends that parents room share for the first 6 to 12 months.
Room-sharing with a baby has been shown to reduce the risk of SUDI.
Red Nose therefore recommends sleeping with a baby in a cot next to the parents’ bed for the first six to twelve months of life.
https://rednose.org.au/article/room-sharing-with-baby

Sudden Unexpected Death in Infancy (SUDI) occurs in the first 12 months of life. Hence the reference to 12 months.
However 90% of deaths occur in the first 6 months - hence the reference to 6 months.

Red Nose also has the following information:
Parents are not expected to observe their baby constantly.
If your baby is sleeping in a separate room check baby regularly to ensure that the baby remains on the back and the head and face remain uncovered
As baby grows beyond 5-6 months they will move around the cot and roll over; settle baby to sleep on their back but let them find the sleep position they feel most comfortable in.
A safe cot and safe sleep environment is still necessary for babies older than 5-6 months
https://rednose.org.au/article/room-sharing-with-baby

Have a look at the article for further information & link to the references to support the information.