Should I wash my sheets when they arrive? Melissa 06 July 2018 18:20 Updated Yes, we recommend washing The Endy Sheets before first use. Related articles How should I wash my Endy Sheets? Will Endy sheets only fit on an Endy mattress? What is the thread count of the Endy Sheets? Are Endy Sheets organic? Tell me more about the 60 night sheets trial.