Casper Dream Split King Mattress with Head Up Only Base

This set is designed for high compatibility, featuring a low-profile 4-inch base that fits within most standard King-sized platform, panel, and slat bed frames. With total dimensions of 76 inches wide by 80 inches long, it matches the footprint of a traditional King bed. We recommend verifying that your current frame does not have fixed storage drawers or center supports that might interfere with the movement of the motorized base.

To allow the two sides of the bed to move independently, you will need a split king sheet set. This typically includes two Twin XL fitted sheets—one for each mattress—and a single King-size flat sheet to cover both. Based on our expertise with adjustable bedding, we recommend choosing sheets with deep pockets and heavy-duty elastic to ensure they stay securely in place as the mattresses articulate.

This hybrid mattress is specifically engineered to perform seamlessly with an adjustable base. By combining individually pocketed Flex Coils with layers of responsive Breathe + Flex Foam, the mattress provides the necessary flexibility to contour to the base's movement while maintaining its structural integrity. This hybrid design ensures you receive the pressure-relieving benefits of foam alongside the durable support of traditional coils, even when the head is elevated.

Yes, a split king is often the most practical choice for navigating tight spaces. Because the system is delivered as two separate Twin XL mattresses and bases, it is much easier to move through narrow hallways, up tight staircases, or into small elevators than a standard, one-piece King mattress. This makes it a superior option for urban apartment living or older homes where large furniture pieces can be difficult to maneuver.

Yes. One of the primary benefits of an adjustable base is the ability to customize your sleeping incline. Elevating the head of the mattress can help open airways to reduce snoring and use gravity to prevent stomach acid from rising, which often alleviates symptoms of acid reflux or GERD. Using the included wireless remote to find your ideal angle provides a non-invasive way to improve overall sleep hygiene and comfort.

A split king mattress offers the highest level of personalization for partners. Because it consists of two separate mattresses and bases, each person can adjust their side independently. This is an ideal solution for a "reader and a sleeper" dynamic; one partner can elevate the head of their mattress to read or watch TV, while the other remains completely flat and undisturbed.