Our 4 Pc Split Head King (Half Split 36" Down Middle) 1500tc Soft Sheet Set (Fitted Is Separated Ony 36" Down The Middle, Not All The Way Down) Includes: One (1) 78" Wide X 80" Long X 18” Deep Fitted For Mattresses Up To 18" Thick Including Memory Foam, Custom Number And Double Pillow Top Heights, One (1) 120" Wide X 108" Long Flat Sheet, And Two 20" X 40" King Pillowcases With European Envelope Closures. This Original Peachskinsheets 1500tc Soft Sheet Set Is The Authentic Brand From Atlanta, Georgia And Features Our Signature Peach Zipper Pull. Not Only Do They Provide A Level Of Softness Comparable To 1500 Threads Per Square Inch, But They Are Athletic Grade, Breathable 21st Century Smart Fabric. This Material Allows For Air Flow And Is Designed To Wick Away Moisture While Regulating Cool And Warm Body Temperatures. Our Sheets Won't Change Your Body Chemistry, But They Will Help Manage Perspiration Better To Keep You Cooler And Drier. Hot Sleepers Stay Cool And Cool Sleepers Stay Cozy, Making Them The Perfect Year-Round Sheets. Smart Fabric Benefits Athletic Grade And Breathable For Hot Sleepers Moisture Wicking To Keep Perspiring Sleepers Drier Thermal Control Works With Your Body And Room Temperature For Year-Round Comfort Finish (Always Wash/Dry Sheets Separately And Never With Towels, Jeans, Etc) Dries In 15-20 Minutes On Med To Med-High Heat And Comes Out Wrinkle And Stands Up To Callouses And Pets Pet Hair Does Not Weave Itself Through Fabric Surface Means No Sliding Or Stretching Great For Sensitive Skin Colors Will Not Fade And Whites Do Not Gray Ultra Soft Right Out Of The Package