With our famous cool-to-the-touch fabric, you won't break a sweat while you do your hair and complete your skincare routine. Over 20 million Cool Nights® PJs sold.Details Cool Nights® fabric is made with lightweight rayon fibers that stay cool to the touch and keep the fabric from sticking to your body. Long sleeves Pockets Detachable belt 38" from shoulder 93% Rayon, 7% Spandex. Machine wash cold.