king mattresses

The listings cluster around two very similar measurements: approximately 80 inches long by 76 inches wide (examples given as ~79.92 × 75.98 in and ~80 × 76 in).

Common thicknesses shown are 8 inches, 10 inches, 12 inches, and 14 inches.

Common constructions include all-foam memory foam (often gel-infused) and hybrid designs combining memory or gel foam with pocketed coils; high-density foam and pocket coils also appear across listings.

Several listings reference CertiPUR‑US certified foam; some mention OEKO‑TEX certified fabrics, and hybrids sometimes reference federal flammability standards (16 CFR Part 1632 and 16 CFR Part 1633).

Warranty and trial coverage varies across listings: examples include 30‑day limited warranties, 1‑year limited warranties, 10‑year limited warranties, and at least one listing offering a 180‑night trial alongside a longer-term warranty.