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  | Spring Air Four Seasons Southwick Luxury Firm California King SetProduct Description It’s the middle of the night and your arm is asleep, but not you. The numbness in your hand woke you up and now you can’t get back to sleep. The Spring Air Four Seasons Southwick Luxury Firm mattress can help you say enough is enough to nasty pressure point pain. With Tri-Zone Memory foam and Nature’s Rest® Latex Lumbar Support in the upholstery of the mattress, your arm will stay awake so you can sleep. The individually encased Power Coils® spring system provides firm individualized support where you need it most, from your knees to shoulders. The Foam Encased Wireless Edge insures you have maximum sleeping surface with a strong sitting edge support. Tell your arm it’s your turn to sleep. Comfort Features Luxuriance Plus Antimicrobial Cashmere Wool fibers in quilt, Super Soft Comfort foam in quilt, Super Soft Conforma® Zone foam in upholstery, Convoluted LaForma Latex foam in upholstery Support Features Higher 9" Profile Coil, Stronger 13 3/4" Tempered Steel, Zoned Construction, 540 Coil Count, Extended Life Foam, Nature's Rest Latex Lumbar Support Durability Features Extended Life Foundation Manufacturer Warranty Information |