Cal King 12" Ultra Firm Tight Top Individually Wrapped Coil Mattress

Protects the mattress from common allergens, such as dust mite dander, helping it stay fresh.

Conforming memory foam with gel added for additional flexible, durable support.

The SealyCool™ Gel Foam is a cushioning foam with gel added for additional flexible, durable support.

This quilted knit cover is made from durable, spun yarns to provide extra comfort, super-soft stretch, and easy care. Thoughtfully designed for hot sleepers, it’s also woven with Chill™ cooling fibers for cool-to-the-touch comfort the moment you lie down.

A version of our high-quality traditional foam, SealySupport™ is found deep down in the mattress for a unique combination of cushioning comfort and flexible support.

Get the perfect balance of even more support and quality comfort for your whole body with this densely-packed system of coils. The Response™ Pro HD Encased coil is tested to hospitality standards to ensure this is our most durable coil. They’re also individually wrapped which allows them to move independently–reducing motion transfer so you’ll feel less movement from your partner throughout the night.

More than 300 densely-packed coils surround the edges of your mattress to create a solid seating surface and more space to sleep. It also provides added durability to prevent sagging and increased flexibility when paired with an adjustable base, while the vented design provides refreshing airflow.

SealyCool™ Gel Memory Foam is stacked in the middle of the mattress, directly under your back and core, to ensure your body stays properly sustained while you sleep.

You don’t have to take our word for it. Our foams undergo thorough third-party testing to ensure they meet CertiPUR-US® safety standards for emissions, content, performance, and durability so you can rest easy.