Use the Heatless Hair Curlers to Wrap Your Hair for Overnight Curls. Hair Curler for Heatless Curler Set while Sleeping. This heatless curling set includes mulberry silk curling rod, 2 scrungies and hair clip and is perfect for Rosegold Curls Giftset. The hair rollers are made of high-quality mulberry silk, which is gentle on your hair and helps prevent hair damage. The rollers are easy to use and can be worn overnight to achieve soft, natural-looking curls without heat. The set also includes a great black and accented in rose gold storage box, making it convenient to store and carry the hair rollers. Great set for gifting your wife, sister, family and friends.