The 2026 flagship upgrade (launched June): steps the CoolNest formula up from triple- to four-stage cooling, swaps in a cooler-to-touch gradient ice silk cover, and upgrades 5-zone to contour-cut 7-zone precision support with firmer lumbar and softer shoulders. Fiberglass-free, CertiPUR-US and OEKO-TEX certified. Queen and King only; prices shown are the 12" profile, rising to about $829.99 for the 16". For hot sleepers who want SweetNight's best temperature control and targeted support.