Furniture painting question

[sierramist03]

I'm painting my wood daybed white. I sanded and primed with a oil base cover primer then sanded and put on coat of sw pro classic and now I plan to lightly sand and apply another coat of the pro classic.
My question is do I need to apply a wax or water based poly on top of that? It is a daybed in a guest room that will infrequently get used. Thanks! This is my first furniture piece to paint.