Easy does it. Our soma intimates exclusive cool nights® rib knit pajama set makes it so easy to relax and get a great night's sleep. Dressed up with luxurious lace accents, the sporty silhouette is softened in a rib knit version of our soma intimates exclusive cool nights® fabric. It stays cool to the touch, so you can rest easy. Detailscool nights® fabric is made with lightweight rayon fibers that stay cool to the touch and keep the fabric from sticking to your body. V-neck. Sleeveless. Elasticized waist. 4" inseam. 93% rayon, 7% spandex. Machine wash. Imported.