The Sealy Downington medium tight top mattress and box spring set is a reliable sleep solution designed to deliver balanced comfort and consistent support. Its tight top innerspring construction provides a stable sleeping surface, while the included box spring offers a complete foundation setup. Adjustable base compatibility adds flexibility, and motion transfer reduction helps support a more restful and undisturbed sleep experience. Set includes mattress plus box spring/foundation/base. Larger size mattress sets may feature 2-piece side-by-side foundations for easier navigation in tight spaces.