Mattresses Diamond Mattress Nova Lux 14'' Medium Copper Cooling Hybrid Euro-Top | Greenguard Gold, Made in USA | Foam

Sleep cooler and more comfortably every night with the Diamond Mattress Nova Lux 14'' medium-feel hybrid mattress—designed for anyone who hates waking up sweaty or sore. The cool-touch fabric uses conductive yarns to pull heat away instantly (no more flipping pillows for the “cool side!”), while copper-infused memory foam regulates your temperature and eases pressure points. The plush Euro-top adds luxury, and the hi-definition transition layer gives a buoyant, weightless feel—like sinking into a cloud without losing support. With 740 individually wrapped coils, your partner’s moves won’t disturb you (hello, undisturbed sleep!). Greenguard Gold certified (low in harmful chemicals) and made in the USA, it’s built to last. Perfect for California King beds, it’s the sweet spot for side, back, or stomach sleepers—wake up refreshed, not achy.