SLEEP STYLER® heat-free rollers allow you to dry and style your hair while you sleep! Just wrap slightly damp hair in these marshmallow soft rollers at bedtime. You'll wake up with beautifully styled hair! Made with super-absorbent memory foam that wicks moisture out of your hair while staying dry to the touch. Mini includes twelve 3" L rollers for fine or short hair. Large includes eight 6" L rollers for thick, long or curly hair.