Little Boppers are our favorite fitteds. Extremely eell made and good enough for overnight w/o a doubler. I have used Flip and Capri covers over our fitteds with good success.
You would need to add quite a bit of absorbency to the workhorse for overnight.
Sonja, Helpmeet to John, Mama to Joel(13)
(5), Joshua (2) and Elizabeth (1)