Specifically designed to work together with your Beautyrest Black® mattress, this Beautyrest Black® Foundation offers long-lasting support and reduced motion for restful night’s sleep. Provides optimal support Delivers maximum comfort Helps reduce motion transfer between sleepers Extends mattress durability Center support extends to the floor for queen or king sizes Included: 1 Box Spring(s) Manufacturer Warranty: 10 Year Limited Bed Size: Twin Xl Measurements: 5.5 Height/Inches, 80 Length/Inches, 38 Width/Inches Maximum Weight Limit: 950 Lbs Base Material: 95% Wood, 5% Other 5% Or Less Care: Spot Clean Country of Origin: Made in US Mattress not included.