I’m interested to hear the reason for endorsing the new Bonds Wondercool range as it contains elastane which I understand causes sweating and overheating which in turn causes babies to get cold as the air surrounding them causes the sweat to cool?? Feeling a bit confused here as I’ve always understood that it’s best to dress them in 100% cotton or bamboo??

Red Nose recommends that you dress baby as you would yourself, not too hot & not too cold.
When wrapping or using blankets (or other sleep wear) light weight cotton or muslin is recommended.
As long as baby is put down to sleep on their back, and that baby is dressed appropriately for the room temperature
– not overdressed or under dressed – with their head and face uncovered, you can feel reassured that you are protecting baby from overheating.
https://rednose.org.au/article/how-to-dress-baby-for-sleep

Red Nose has the following information about the use of Wondercool sleep bag for safer sleep.
Does that mean that any products are not safe for sleep?
Other baby clothing may also meet Red Nose guidelines for safer sleep, but they have not been reviewed by our expert panel of infant safety experts.
Red Nose is partnering with Bonds because they are known for creating high-quality baby clothing products and have long supported safe sleep messaging.

Red Nose recommends the following general guidelines for a safe infant sleeping bag.
A safe baby sleeping bag is constructed in such a way that the baby cannot slip inside the bag and become completely covered. The sleeping bag should be the correct size for the baby with a fitted neck, armholes (or sleeves) and no hood.
When using a sleeping bag, ensure that baby is dressed according to the room temperature. In cool climates, dress baby in layers of clothing within the sleeping bag. If additional warmth is needed, use a single, lightweight blanket over the sleeping bag, ensuring baby’s feet are at the end of the mattress and the blanket can only reach as far as baby’s chest and is tucked in firmly so it cannot ride up and cover baby’s head during sleep.
https://rednose.org.au/article/what-is-a-safe-sleeping-bag