Your summer sleepwear collection needs this gorgeous, cool-to-the-touch chemise. Over 20 million Cool Nights® Pajamas sold. Details Scoop neckline with button detail Adjustable straps 36" on body Cool Nights® is made with lightweight rayon fibers that stay cool-to-the-touch and keep the fabric from sticking to your body. 93% Rayon, 7% Spandex. Machine Wash Cold.