Curls not lasting

I feel like my curls tend to look really nice once they dry out of the shower, but the second I go to bed they’re a frizzy mess. I use a satin pillow and I just feel like it hasn’t really done much, and I try refreshing my hair (right now I’m using the NYM foam) and it just makes my hair look greasy instead of tamed.

My hair routine is just a light shampoo and conditioner, and I style with a little cream.

Any tips on how to make my curls last? :)