Wicked Sheets Moisture-Wicking + Cooling Combo Bed Sheet Set (Queen, White) Each Wicked-Cool bed sheet set includes one fitted sheet, one flat sheet, and two pillow cases. The Wicked-Cool bed sheet set combines the advanced technical functions of both silkweight polyester and nylon. Wash in cool water. Dry on low heat. Do not use fabric softeners of any kind. No need for bleach, Wicked Sheets are stain-resistant! If you must, use non-chlorine bleach. Wicked Sheets are wrinkle-resistant, too!