Cool Nights® Pajamas are loved by millions of women thanks to their softness, stretch, and lightweight fabric that’s always cool-to-the touch. No pajama wardrobe is complete without a versatile sleep tank. The flattering V-neck and beautiful drape make this a winner. Build your dream pajama wardrobe with our Cool Nights® sleep separates. Details Pajama tank top V-neck 25" on body Cool Nights® is made with lightweight rayon fibers that stay cool to the touch and keep the fabric from sticking to your body. 93% Rayon, 7% Spandex. Machine wash cold.