Bridesmaid Pyjamas

This might be a daft question but I’m looking for opinions and suggestions because I honestly don’t know which is best! My bridesmaids are going to be in peacock teal dresses during the day. I’m hoping to buy them all a set of pjs to wear for getting ready in the morning so my questions are: should I buy a set of pjs that match the colour of their dresses or black ones?… and should they match the same style of mine?…
Any advice is so appreciated! I know I’m overthinking this massively! I’m not getting them anything personalised as I want them to be able to use them again!