I bought this to use as a sleeping bra while I was still pregnant, and it worked pretty well for that purpose.  I was hoping to also use it as a nursing bra after having the baby (rather than buying a bra for such a short period of time), but it's still really most useful as a sleep bra.  It's fairly comfortable to wear, but the fabric is stiff and the band at the bottom is pretty thick, which makes it uncomfortable to maneuver and difficult for me to nurse/pump because the cup keeps trying to move back into place.