This response may be outdated, but a postpartum doula offers support to new moms, particularly for overnight needs.There are a few in the area. You can find one on doulamatch.com, or look online on DONA.org for a list of doulas in your area. There tends to be more birth doulas than potpartum doulas in the area.
I am a postpartum doula and I work with a group of both birth and postpartum doulas that serve Phila, Delaware & Montgomery counties. I have some availability, or I could refer you to another doula in the area if I can't meet your needs.
Re: Night nurse in Montgomery county?