I literally asked my friend how do you make your curls last all day. She said IDK flexi Rods??. So guess what I did a flexi rod set and boom! this happened. The best long lasting curls I ever achieved effortlessly. Everything I used is mentioned down below. Let me know if you want to see a tutorial and if you recreate send me pics. 
Hair –Cexxy Hair
Flexi Rods- 2 packs of the purple flexi rods from your local beauty supply store
Satin Scarf- Local beauty supply store.
My Everyday Life 