Continental Sleep, Folding Bunkie Board – Low-Profile 66″ x 45″ Mattress Support Platform for Daybeds, Bunk Beds, Futons & Metal/Wood Frames – Prevents Sagging, Easy to Install & Store

FRAME-COMPATIBLE SIZING: Each Bunkie board is slightly undersized compared to standard mattress dimensions to ensure a snug fit within bed frames and prevent edge compression. BED BOARD FOR UNDER MATTRESS SUPPORT: A low-profile bed supports slats board solution that offers firm support without the extra height of a traditional full box spring. Adds extra bed support under the mattress to help prevent sagging, extending the life of your mattress. BACKBOARD FOR BED: Mattress Board is foldable, lightweight, and easy to store—perfect for folding beds, Trundle bed, Platform Bed Frame, futon mattress, foldable bed frame, or travel cots. Low Profile Bed Board – a smart choice over bulky box springs or mattress bases. UNDER MATTRESS SUPPORT BED BOARD: Works great in kid’s beds, bunk beds, sofa beds, pull-out beds, and full cardboard bed frames with no box spring needed—ideal for metal frame, wood slats, and bed slats foundations. FULL BED SUPPORT BOARD: Cardboard measures 66" x 45"; folded size is 45" x 15". This thin foldable box spring alternative fits beneath the center of the mattress (not edge-to-edge).