If she's not completely better, I wouldn't worry about the extra sleep. However, if she is better, it's possible she's getting too much sleep in the day, thus disrupting her night sleep. Are you still feeding her at the NWs? If you think she's still feeling poorly, I wouldn't make any drastic changes. If you think she's better, you could start by waking her at the 2 hr mark with her naps and see what happens. My dd is 10 mos and sleeps 3-4 hrs in the day and 12 at night, so it's possible your dd just needs a bit more sleep. HTH
michelle