In our case, df was with bottle and all the other feeds with breast, as HH suggested. You can pump between feeds (after 1.5 h) and there should be enough for when she feeds 1-1.5 h later. Also, if you do not feed at df, you can pump before going to bed or just before the df, and use that milk for the df. In our case, the constant letdown of the bottle was key for ds to have a full feed while asleep.