Featuring: A 13.5 Gauge Open Coil Bonnell spring base and memory foam layers. Ideal: For promoting good blood circulation and contouring to your bodies natural shape. Size: Available in single, small double, double and king. Additional: Hypo-allergenic and dust-mite resistant. Product: Get this Super Deluxe Tufted Spring Mattress today! Perfect: For improving the quality of your sleep! Super Deluxe Tufted Spring Mattress | Living Social