STURDY SUPPORT TO PREVENT SAGGING – A sagging mattress can ruin your sleep. This firm supportive bed board keeps your mattress flat and even, stopping dips and lumps before they start. Enjoy a comfortable, well-supported bed that helps you wake up feeling rested. EXTENDS MATTRESS LIFE & SAVES YOU MONEY – Mattresses aren’t cheap... and a mattress without support wears down fast. This strong bunky board keeps everything firm and even, preventing premature wear & tear. Protect your mattress, sleep better, and avoid having to replace it too soon. STRONG VENTILATED WOOD FOUNDATION – Built from 1.5" thick split wood with a slatted design, these bed boards for under mattress provide a sturdy foundation that supports heavy weight. The stitched fabric cover adds breathability and reinforces durability, perfect for heavier mattresses. 2-PIECE SPLIT DESIGN, FULLY ASSEMBLED - Unlike a single-piece mattress board support, this bed support board is split into two halves for easier handling. Arrives fully assembled. Works with slatted beds and single support frames as a low-profile alternative to a box spring. PERFECT FOR BUNK, LOFT & DAYBEDS – Box springs can add too much height, and regular slats can shift loudly. If you want a space-saving base that is also quiet, this low-profile bunkie board is the perfect fix. Ideal for kids' bunk beds, loft beds, and daybeds.