Nectar Premier Copper mattress is the result of strategic engineering for the comfiest, coolest, most supportive slumber for all sleeper styles. The Nectar Premier Copper has heat-conductive copper fibers and the latest in sleep fabric technology woven into the cover. An extra inch on the comfort layer lets you reach peak snooze every night. And 2″ more base means support that makes your back and the muscles happy. So whether you sprawl like you’re single or conk out on your side, Nectar’s ideal ratio of softness, firmness and support works for you.