The Pineapple method is the best way to preserve your curls for 2nd day, 3rd day or even 4th day hair. It protects your curls from being smooshed at night while you sleep.
How To Pineapple: Bend over. Gather hair on top of head like you are making a ponytail. Use a stretchy elastic head band or scrunchie to hold hair in place. The looser the better. Apply satin/silk bonnet. Sleep well.
*Depending on the length and thickness of hair you may require a regular or over sized bonnet.