This Versatile Pillow Offers A Choice Of Four Ergonomic Sleeping Options To Provide The Most Comfortable And Supportive Fit Options For The Best Sleep - Four Different Pillow Sleeping Options To Suit Your Individual Needs Plus Your Choice Of Comfort Foam Or Memory Foam Memory Foam Pillow - Pleated Memory Foam Side Offers Greater Contoured Support With A High And Low End Providing Two Options For A Comfortable And Supportive Fit Comfort Foam Pilllow - Peaked Comfort Foam Side Offers A Flatter Surface Providing A Choice Of Two Higher/firmer Sleeping Heights Optimal Air Circulation - Both Pleated And Peaked Surface Textures Promote Air Circulation Reduce Build-up Of Moisture And Help To Reduce Pressure Points Includes A Machine-washable Pillow Protector Medium Support Great Retail Packaging Dimensions: 22 X 13 X 5