Extreme softness + ultimate comfort. Join the millions of women who get a good night's sleep with Cool Nights® in these super-soft pajama shorts. Pair with a Cool Nights® pajama top. Cool Nights® is made with lightweight rayon fibers that stay cool-to-the-touch and keep the fabric from sticking to your body. Self piping at leg opening Relaxed, loose fit Elastic waistband with drawstring 93% Rayon, 7% Spandex. Machine wash cold.