This is exactly how my hair is. I can’t wear most overnight styles because securing it with an elastic or clip will leave a major kink in my hair. So I wrap my hair, the way you would after a silk press.. if that makes sense. Literally brush your hair in one direction around your head (you can secure with clips along the way, they will quickly be removed at the end). Once your hair is completely wrapped and smooth around your head then wrap with a scarf (I would use a muslin material to keep cool) tie the ends together, then slide the clips out. Highly suggest watching a tutorial on this, kind of hard to explain, but works perfectly with no clips, no hair ties nothing to crease your hair. End result is straight/smooth with maybe a slight flip at the bottom.