Drew & Jonathan Capilano Split King Mattress with Head Up Only Base

Yes. Combined, the two independent bases measure approximately 75" W x 80" D, matching the standard footprint of an Eastern King bed frame. The adjustable base units are designed to operate as freestanding mechanisms that fit inside most standard king-size bed frames, headboards, and panel beds, provided that any pre-installed internal wooden slats or center support beams are removed.

This mattress incorporates multiple cooling and thermal regulation technologies. It features TheraCool Gel Foam designed to draw heat away from the body upon contact, along with 5-Zone TheraCool QuadTech Gel Foam infused with copper, silver, and graphite to maintain a cooler, drier, and cleaner sleep environment. Additionally, the iFlex quilt incorporates 1,728 micro-coils, which, along with the 934 pocketed coil core, promote active airflow throughout the mattress structure rather than trapping heat like solid foam beds.

A split king configuration consists of two individual Twin XL-sized sleeping surfaces (each mattress measuring 38" W x 79.5" D x 15.5" H on a 37.5" W x 80" D base). The primary advantage is independent articulation: each partner can raise or lower the head of their side using their dedicated adjustable base without altering the other person's position. This completely isolates movement, virtually eliminating motion transfer when shifting positions.

Yes. Elevating the upper body on an adjustable base helps keep airways open and uses gravity to prevent stomach acid from traveling upward, providing natural relief from acid reflux, congestion, and snoring. Because this is an independently operated split king system, one partner can elevate their head to ease symptoms while the other partner remains resting completely flat.

A split king bed requires a specialized split king sheet set. This configuration includes two separate Twin XL fitted sheets (to cover each 38" W x 79.5" D mattress with its 15.5" depth), one shared standard King flat sheet, and two King pillowcases. Individual fitted sheets ensure that both sides can elevate independently without popping off the corners or pulling the fabric tight across the center gap.

The mattress combines individual pocketed coils with high-density contouring foams. The TheraWrap 934 5-Zone Support System provides graduated support across five distinct body zones—offering firmer reinforcement beneath the lower back and hips while providing pressure-relieving give at the shoulders. Topped with TheraSponse Plush Comfort Foam and 1,728 micro-coils in the hybrid quilt, it contours closely to your body to alleviate joint pressure while maintaining proper spinal alignment.