I've been given a cocoonababy nest as a gift. I've gone onto their website and they do say it's not SIDS approved, but I wanted to see what your thoughts were about sleeping a baby in it during the day under supervision. The instructions say to only use the cacoonababy nest in the first few weeks, before baby shows any signs of rolling or attempting to roll. Can you help me with any advice as to whether this product is safe? Thank you so much

Red Nose recommends that the safest place to sleep baby is in a cot that meets the Australian Standards, on a firm, clean, well-fitting & flat mattress

Many products on the market today do not promote a firm or a flat surface.
There is a risk to baby of being placed to sleep in a position that may facilitate baby’s neck being flexed to the “chin on chest” position.

When a baby falls asleep in a propped up device the head can fall forwards, pushing the chin down towards the chest.
This can lead to the airway becoming blocked and reducing airflow.
https://rednose.org.au/article/bouncinette

Also portable sleep surfaces, like the one you describe, do not have Mandatory Australian Standards for safe infant sleep.
All safety standards for products in Australia are developed by ACCC - Product Safety Australia - https://www.productsafety.gov.au/products
Red Nose does not approve any specific brand name products.