You asked, we listened. Our exclusive new soma intimates cool nights pajama shorts take comfort to a longer length. They stay cool to the touch to give you the best night's sleep, designed with a drawstring waist for a perfect fit. Detailscool nightsâ® fabric is made with lightweight rayon fibers that stay cool to the touch and keep the fabric from sticking to your body. Drawstring waistband. Inseam: 7. 93% rayon, 7% spandex. Machine wash. Imported.