Additional Details ------------------------------ Product description: Material: Silk Blended Thread Count: 600 Feature: Envelope Closure Pillowcase Crafts: Reactive Printing, Twill Weave Season: Spring, Summer, Autumn and Winter Style: Classic, Luxury Care Instructions: Hand Wash or Gentle Machine Wash in Low Temperature, Hang Dry, Not Chlorine, Low Iron, Do Not Bleach, Do Not Dry Clean Product Dimension Standard Size: 2 Pieces Includes: 2 Pillowcases Pillowcase: 48*74cm (19"*29") How to Prevent Side Sleeping Wrinkles Step 1 Sleep on your back. Place an extra pillow under your knees to keep you from turning over. You may not last that way the entire night, but any time spent off of your face will help. Step 2 Lay a body pillow alongside yourself and rest as much of your weight on it as you can. Use it to prop your shoulder and part of your chest, and throw your leg and hip over it. This will keep your head turned somewhat way from the pillow, keeping a lot of the weight off your face. Step 3 Invest in satin pillowcases. The slippery surface will reduce the friction between your face and the pillowcase, helping to stop the bunching of the fabric that causes the deep creases.