Now you're all set. This cool nights® pajama set gives you the cool comfort you need for a great night's sleep. The lacy tank and coordinating shorts are made from our soma intimates exclusive cool nights® fabric, designed to stay 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.