I love the fit and comfort of this sleep bra.  I got a medium.  Normally I wear a 32D in most bras, but having read some of the reviews, decided to size up a bit, and I'm glad I did.  I like having cups that drop away because it makes it much easier to nurse a newborn while side-lying.  Pull-down cups are popular on sleep bras, but the cups on that style always seem to ride up and get in the way when nursing a tiny one (especially when your arm is up as in a side-lying position).  The only drawback to this bra is that it is a pullover style, however, that does make it super soft and comfy for sleeping/lounging because there's no hardware to poke or irritate.  Perfect for early days when milk is coming in and breasts are engorged, and for holding nursing pads in place.