Hello, I understand the safest practice is to room share until at least six months. Do you have any advice for not following this practice and starting a new born off in their own room instead? Are rocking/responsive bassinets where the baby is ‘locked in’ (eg mumma roo or snoo) safe ?

You are correct Red Nose does recommend room sharing for the first 6 months.
Room sharing is known to reduce the risk of SUDI (Sudden Unexpected Death in Infancy)
This is thought to be as a result of enabling supervision/observation of baby who is sleeping & easier ability to intervene if baby is in an unsafe position, in conjunction with placing baby on back for sleep, keeping baby’s head & face uncovered & keeping baby smoke free in a safe sleeping space.
Room Sharing also facilitates breast feeding.

However, for some families Room Sharing is not possible, so parents are encouraged to be diligent in following the other Safe Sleep recommendations.
Red Nose has the following information - https://rednose.org.au/article/room-sharing-with-baby
“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 “

Smart bassinets are not a replacement for the supervision of parents/caregivers.

Red Nose has a news article about Smart bassinets here: https://rednose.org.au/news/should-we-use-a-smart-bassinet
This discusses the importance of baby waking during sleep & the risk of using sleep positioners /restraints when baby is sleeping.

Remember, Red Nose does not recommend the use of any positional restraint for baby.
https://rednose.org.au/article/is-it-safe-to-use-products-designed-to-keep-baby-in-a-particular-position