Comfort Classic Gentle Firm Twin Size Mattress and Box Spring Set - Fully Assembled, Orthopedic, Good for Your Back - Long Lasting and 1 SidedEnhanced Comfort Each Twin Size Mattress (39" W x 75" L x 9" H) features a Gentle Firm Comfort Level and offers long lasting sleep support. Top Quality 357 verticoil unit, with 13 gauge unit and 6 gauge border, 8 double edge guards better border support. Box Spring Matching Universal Box Spring Wood Foundation is strong and sturdy. Bed Frame is NOT included. Must provide a working phone number for shipping. None Flip Single Sided mattress. Made in