The najell easy wrap is perfect for those first few days and weeks.
A great option to hire for the 4th trimester (£30 for 3 months)

Goes on like a tshirt, no need to adjust anyhting.
This does mean you can't share the same one with another adult as they may need a different size to you.

It does feel like a tshirt, so my not be super comfortable being worn over the top of clothing, especially in warm weather! But it is so perfect for use inside the house, skin to skin!

I have the M (uk12-14) or the L (uk 16-18)