South Bay 10" ActiveAlign Reactive Copper Mattress - Medium Firm

Split King ordering (two Twin XL mattresses)

For a split Eastern King (regular King), select the Twin Long / Twin XL size and order quantity 2. You will receive two individual Twin XL mattresses, one for each side. The older “King Split” choice is temporarily unavailable to prevent confusion over its bundled price and contents. A standard King size is one full-width mattress; a split-head mattress separates only at the head and is not a full split.

Our advertised selling prices include standard carrier shipping within the contiguous United States.

Designed with an active lifestyle in mind, the 10-inch ActiveAlign medium-firm mattress combines copper-gel infused memory foam, responsive foam, reinforced edge support and a breathable Air Grid foam base.

• 1-inch copper-gel memory foam comfort layer
• 2-inch reactive foam layer for quick response
• Edge support and breathable Air Grid base
• Removable cooling cover
• Compatible with adjustable bases; base sold separately
• Manufacturer's 10-year limited warranty