Photo 1 of SIMARTH Firm King Mattress 12 Inch King Size Hybrid Mattresses in a Box Upgrade Strengthen King Mattress with Gel Memory Foam and Individual Pocketed Springs for Support & Pressure Relief, Medium Firm

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Photo 1 of SIMARTH Firm King Mattress 12 Inch King Size Hybrid Mattresses in a Box Upgrade Strengthen King Mattress with Gel Memory Foam and Individual Pocketed Springs for Support & Pressure Relief, Medium FirmPhoto 2 of SIMARTH Firm King Mattress 12 Inch King Size Hybrid Mattresses in a Box Upgrade Strengthen King Mattress with Gel Memory Foam and Individual Pocketed Springs for Support & Pressure Relief, Medium FirmPhoto 3 of SIMARTH Firm King Mattress 12 Inch King Size Hybrid Mattresses in a Box Upgrade Strengthen King Mattress with Gel Memory Foam and Individual Pocketed Springs for Support & Pressure Relief, Medium Firm