Pillow for newborn

Hi fellow mummies! I’ve read somewhere that no pillows should be in the cot with newborn due to suffocation/ SIDS risk. Would like to know ur opinions on the following: - When can we start to introduce baa baa sheepz bedtime buddy? - When to start using beanhusk pillow to put on baby’s tummy? #advicepls #firstbaby #firstpregnancy