When can I give my child a doona instead of a blanket?

Red Nose recommends to leave loose bedding out of baby’s sleep environment until they are in a bed.

Soft bedding is dangerous in a cot and should not be used. Soft bedding includes pillows, quilts, doonas, soft toys and bumpers. Soft bedding may cover the baby’s face and obstruct breathing and/or cause overheating.
........... It is safer to wait until the child starts to sleep in a bed before introducing a pillow or other soft bedding.
https://rednose.org.au/article/at-what-age-can-i-introduce-cot-bumpers-and-pillows

Yes, but at what age? A child in a floor bed at 10 months is very different to child in a floor bed at 2 years old.

The general recommendation from many safety organizations is to withhold the use of loose bedding until a child is over two & no longer in a cot.
https://rednose.org.au/article/safe-bedding-is-the-bedding-safe
See also Cot to Bed information.
https://rednose.org.au/downloads/RN0407_22_Cot-to-Bed.pdf

Do you have further questions about this?
Are you contacting on behalf of a Child Care Service? (including FDC?)