Are Endy Sheets organic? Melissa 06 July 2018 18:17 Updated The Endy Sheets are made from the highest-quality cotton; however, they are not organic. Related articles Where are the sheets made? Will Endy sheets only fit on an Endy mattress? What is the thread count of the Endy Sheets? How should I wash my Endy Sheets? Tell me more about the 60 night sheets trial.