Innerspring Mattress Size: 84" L x 36" W x 6" H High-quality 312 innerspring design Durable 11-ounce vinyl cover is anti-bacterial, anti-static, acid-resistant, and waterproof 84" x 36" x 6" Innerspring Mattress Invacare 5185-84 (not shown) is available for use with extender kit. Meets Fire Code Regulations 16 CFR1632 and 16 CFR1633