Behost 12 inch King Size Mattress, Foam & Spring Hybrid Mattress King in a Box, CertiPUR-US & Fire-Retardant

This 12 inch king mattress uses CertiPUR-US® certified foam and premium 3D knit fabric, upgraded to an 8-layer structure for optimal weight distribution, skin-friendly breathability, safety, and durability. The standard-size foam & spring hybrid mattress in a box offers a medium-firm to medium feel, with a unique gold thread design

[Quality Assurance]

Our mattress features an 8-layer structure, 3D knit fabric, and CertiPUR-US® certified foam to ensure high quality, durability, 100% eco-friendly materials, skin-friendly breathability, moisture resistance, anti-slip, and fire resistance

[Multi-Layer Foam Technology]

For the mattress king size 12 inch, the high-density core foam provides optimal weight distribution, conforms to body curves, and eases muscle tension for a refreshing wake-up

[Zoned Support]

Hundreds of pocket springs with zoned support reduce motion transfer—ideal for couples, pets, and light sleepers

[Standard Size & Gold Thread Design] 

This colchones king size mattress in a box is standard size with a medium-firm feel; the gold thread design adds color and luxury

[No Assembly]

Behost mattress is compressed, vacuum-sealed, and boxed. Remove from the box, release the vacuum-sealed bag, and wait 48–72 hours for full foam expansion

[Tips]

Initial expansion may happen quickly; keep a safe distance from the mattress king for adult during setup