Photo 1 of Coolvie Firm Twin Mattress in a Box, 12 Inch Twin Bed Mattress with Extra Lumbar & Shoulder Support, Hybrid Memory Foam & Pocket Spring for Pressure Relief, CertiPUR-US Certified, 100-Night Trial

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Photo 1 of Coolvie Firm Twin Mattress in a Box, 12 Inch Twin Bed Mattress with Extra Lumbar & Shoulder Support, Hybrid Memory Foam & Pocket Spring for Pressure Relief, CertiPUR-US Certified, 100-Night TrialPhoto 2 of Coolvie Firm Twin Mattress in a Box, 12 Inch Twin Bed Mattress with Extra Lumbar & Shoulder Support, Hybrid Memory Foam & Pocket Spring for Pressure Relief, CertiPUR-US Certified, 100-Night TrialPhoto 3 of Coolvie Firm Twin Mattress in a Box, 12 Inch Twin Bed Mattress with Extra Lumbar & Shoulder Support, Hybrid Memory Foam & Pocket Spring for Pressure Relief, CertiPUR-US Certified, 100-Night Trial