Has anyone used a baby nurse?

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Have any of you ladies used a baby nurse (CNA) for overnight support or for 24 hour support? I am considering this for our first child (due in August) and am curious as to what the experience was like for anyone that tried this!

Also, do you guys recommending help for the first 4 weeks or first 6? As context, my husband and I don’t really have support from anyone else.