Sealy Posturepedic Hybrid Sonterra Split King Mattress with Head Up Only Base

A split king provides the ultimate in motion isolation because it consists of two physically separate Twin XL mattresses. If one partner has a different schedule or tosses and turns, their movements—and the adjustment of their specific head-up base—will not be felt on the other side of the bed, ensuring undisturbed sleep for both individuals.

This mattress is specifically engineered for temperature regulation, making it an excellent choice for warmer, more humid regions. It features a Cool-to-the-Touch Cover equipped with MoistureProtect technology, which is designed to wick away moisture and keep you comfortable throughout the night.

A hybrid mattress like this one is an ideal partner for an adjustable base because it combines the flexibility of encased coils with the pressure relief of memory foam. The PrecisionFit Coils are designed to flex and adapt independently, allowing the mattress to contour smoothly to the base's movements without compromising the structural integrity of the bed.

Yes. This set includes a "Head Up Only" adjustable base, which allows you to sleep with your upper body elevated. Elevating the head can help open airways to reduce snoring and uses gravity to prevent stomach acid from rising, which is a common recommendation for managing acid reflux or GERD.

This mattress features a DuraFlex Coil Edge, which is a reinforced, high-density coil border. This construction provides a solid seating surface for getting in and out of bed and maximizes the usable sleeping area by preventing the "roll-off" feeling often associated with less supportive edges.

At 76 inches wide and 80 inches long, this split king set matches standard U.S. King dimensions. While most adjustable bases are designed to fit within standard panel, platform, or slat bed frames, we recommend verifying your specific frame's interior clearance. Our expertise suggests that "zero clearance" style bases like this 4-inch profile model are highly compatible with most modern bedroom furniture.