Amazon Basics Cooling Gel-Infused Medium-Firm Memory Foam Mattress - CertiPUR-US Certified, Cal King Size, 12 Inch with Smart Box Spring Bed Base (9-Inch Foundation) | Pressure Relief for Back Pain, Cool Sleep Technology for Hot Sleepers, Perfect for Master Bedrooms & Guest Rooms

Amazon Basics Cooling Gel-Infused, Medium-Firm Memory Foam Mattress, CertiPUR-US Certified - Cal King, 12 InchAmazon BasicsAmazon Basics Cooling Gel-Infused, Medium-Firm Memory Foam Mattress, CertiPUR-US Certified - Cal King, 12 InchAmazon Basics Smart Box Spring Bed Base, 9-Inch Mattress Foundation - Cal King, Tool-Free Easy AssemblyAn Amazon Brand.Amazon Basics

Product 1: Three-layer hypoallergenic memory foam mattress with cooling gel foam top layer, supportive middle layer and durable foam base

Product 1: California King-size mattress measures 84 x 72 x 12 inches (LxWxH)

Product 1: Cooling gel memory foam top layer and breathable middle layer with airflow channels provide a cooling effect, helping to regulate body temperature while you sleep

Product 1: Medium-firm mattress offers exceptional support for a restful night's sleep; quilted cover for extra softness

Product 2: The look and functionality of a traditional box spring, but made from steel to support any spring, memory foam, or hybrid mattress

Product 2: Durable steel frame and horizontal slats provide sturdy, reliable support for any same-size mattress; NOTE : The product does not include legs.

Product 2: 2-piece fabric top and bottom covers the frame and zips together for full coverage; cover is removable for spot cleaning

Product 2: Easy tool-free assembly; interlocking frame components assemble in minutes