Hello! My partner and I are considering moving our 2 1/2 y.o. daughter into a toddler bed soon. She has always used sleep suits in the cot but I have read on the Red Nose website that these are not recommended once a child moves out of their cot to a toddler/single bed. My question, therefore, relates to the use of bedding in the 'big kid' bed. Does the blanket/sheet being used on a toddler/single bed still need to be tucked in securely and the child placed at the bottom of the bed so as not to wriggle underneath the covers, as per in a cot? If so, what is the recommendation for when a using a doona/duvet in a toddler/single bed (i.e. is it necessary to secure the doona? Is it ok the place the child at the top of the bed like an adult or should they still be tucked in at the bottom of the bed?)?

Toddlers who use a sleeping bag after being moved from cot, are at risk of falls when they get out of bed & walk.
Many of the safe sleep guidelines provided by Red Nose are specifically important prior to 12 months of age, as Sudden Unexpected Death in Infancy (SUDI) does not occur after 1 year by definition.
The risk of SUDI to babies after 6 months is also very low.
As far as bedding is concerned, Red Nose recommends withholding loose, soft or padded bedding while a child remains in a cot.
Older babies in a cot can be at an increased risk of a sleeping accident by using pillows and bumpers as a step to climb up and fall out of the cot.
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

Once your child has moved to a bed, quilts or doonas may be used, however, some babies still do not stay under covers so it may be helpful to add extra layer of clothing, rather than quilt or doona.
You can place the child anywhere in the bed, when settling.

Information is available in Cot to Bed resources here:

https://rednose.org.au/downloads/RN3356_Cot_Bed_DL_Oct2018_Online.pdf

https://rednose.org.au/article/making-your-home-safe-before-moving-a-child-from-a-cot-to-a-bed

https://rednose.org.au/article/where-to-sleep-a-child-who-has-moved-from-a-cot