Heatless Curling Irons Key benefits Nondamaging curls and added volume without temperatures. Hair remains undamaged and looks smoother and healthier. Suitable for all hair types and textures; medium or longer hair is for results. Comfort and design Wrapped with soft flannel for a gentle touch against the hair. Flexible structure adjustable to a comfortable position. Hook design resists slipping during sleep, providing a secure, comfortable overnight use. Overnight results This heat curling iron lengthens and strengthens your dry or styled hair while you sleep, helping you wake up with fuller hair. How to use Step 1: For results, spray a little styling spray onto dry hair before use. Step 2: Put the curling iron on your head and wrap your hair around the curling iron. Attach the hooks to both ends of the curling iron. Step 3: Fall asleep and wake up with hair. Use scenarios Overnight styling for wakeup ready hair: wear while sleeping to lengthen and strengthen hair and wake up with fuller hair. All hair types and textures care: suitable for a variety of hair types; results with medium or longer hair. Travel or overnight stays: lightweight, heat option to maintain or create curls without damaging heat.