Mine is silk hair bonnets - total game changer for my frizzy wavy hair!!
I used to wake up with my head looking like a birds nest for it to somehow look even worse after I've brushed it as any curls just turn into frizz.
Another thing thats worked for me is I now only brush my hair just before washing (2-3 times per week) and just use my fingers to detangle the other days when needed
I've recently gotten into curl creams/mouses but still getting the hang of those, still so excited that I now wake up with normal looking hair 😅