I was really hopeful with these as I'm desperately looking for nighttime nursing bras that don't have the fastenings at the back, but the sizing is terrible. I have ordered 5 of these in sizes ranging from 14 up to a 22 and none of them fit! I would normally wear a 12 top so was convinced that the 14, maybe 16 would have been adequate. I looked on the sizing guide to check and based on bra size then I was probably looking at an 18 at most but no, far too small. I returned and reordered a 20 and 22 but these where no better. The 22 just about fit me at present (currently 35 weeks pregnant) but there was no way they would have lasted until my due date, let alone after when I feed my baby. They are also double layered which I found a bit bizarre. When you let down the clip it has another layer with a centre bit and 2 circular holes that surround the breasts. It's probably personal preference and some women may prefer this sort of thing but for me it instantly irritated my skin down the centre bit and the edging of the circular cut outs. Unfortunately my search for suitable nighttime nursing bras still continues.