We’ve updated this guide with notes from our long-term testers. March 2025 Duvet covers can be tricky to change, but using one is essential for extending the life of your comforter (or duvet).

8. Nouveau Iris Duvet Cover and Pillowcase Set, from £22 (Single), to £36 (Super King), Dunelm This darkly glammy floral print celebrates the art nouveau movement with its iris motifs and ...