Serta Perfect Sleeper Advanced Medium Split King Mattress Set with Head Up Only Base

To allow for independent movement of the two sides, you will need "Split King" sheet sets. These sets typically include two Twin XL fitted sheets and one King-size flat sheet. We recommend using high-quality fitted sheets with deep pockets and strong elastic borders to ensure they stay securely in place when the head of the mattress is elevated.

The "medium" feel of this Serta Perfect Sleeper is strategically designed to be a "universal" comfort level. The 5 ZoneActive Design provides targeted support for the hips and shoulders, which is essential for side sleepers to maintain spinal alignment. Simultaneously, the responsive latex foam offers the surface firmness required by back and stomach sleepers to prevent the midsection from sinking too deeply, making it a versatile choice for combination sleepers.

Yes, the included head-up adjustable base is specifically designed to alleviate common sleep disruptions. Elevating the head can help open airways to reduce snoring and use gravity to prevent stomach acid from rising, which is a common recommendation for managing GERD or acid reflux. By using the RTG Sleep 2900 wireless remote to find your ideal elevation, you can customize your sleep environment to improve both breathing and comfort.

A split king setup is the ultimate solution for couples with different sleep preferences or schedules. Because it consists of two separate Twin XL mattresses, movement on one side—such as a partner getting out of bed or adjusting their position—is not transferred to the other side, providing near-total motion isolation. This configuration also allows each person to independently adjust the head of their mattress using the wireless remote, making it perfect for couples where one person enjoys reading or watching TV in bed while the other sleeps.

This mattress is expertly engineered for use with adjustable frames. It features a 5 ZoneActive Design that pairs zoned coils with True Response Latex Foam. This combination provides the necessary flexibility to contour to the base's movements without compromising structural integrity. The professional-grade latex is particularly resilient, ensuring that the mattress maintains its responsive feel and "medium" support level even after years of frequent adjustment.

This mattress utilizes a multi-layered approach to temperature regulation. The Graphite-Infused True Response Latex Foam is designed to actively redistribute heat away from the body, while the CoolFeel Fabric provides an immediate cool-to-the-touch sensation. Based on material science, graphite is a highly conductive element that enhances the thermal properties of the foam, making this an excellent choice for sleepers in warmer climates or those who struggle with overheating at night.

With a base height of just 4 inches, this adjustable set is designed with a slim profile that can often be integrated into existing decorative bed frames. However, because a split king is essentially two Twin XL units side-by-side, it is important to ensure your current frame matches standard King dimensions (76"w x 80"l) and does not have structural slats or center supports that would interfere with the flat placement of the adjustable bases.