Therapedic Forester Split King Mattress with Head Up Only Base

Unlike many all-foam mattresses used with adjustable bases, this model features the TheraCoil V-Coil Innerspring system. These coils are engineered for extreme durability and flexibility, allowing the mattress to contour precisely to the base's movements without compromising structural integrity. This provides the traditional, responsive support of an innerspring mattress—which many sleepers prefer for back alignment—while maintaining the full functionality of an adjustable bed.

This mattress is an excellent solution for those who may have difficulty getting in and out of bed. The 14-inch mattress height combined with the 4-inch profile of the adjustable base creates a stable, accessible height for most users. Furthermore, the TheraFoam encasement provides superior edge support; this ensures the mattress remains firm and stable when you sit on the side of the bed to transition in or out, preventing the "roll-off" feeling common in less supportive mattresses.

A split king configuration consists of two separate Twin XL mattresses, which practically eliminates motion transfer between partners. This setup is ideal for couples where one sleeper is more restless or for those with different sleep schedules, as movements on one side are not physically connected to the other. To address the "center gap" common with this design, this model features TheraFoam encasement, which provides a firm, supportive edge that minimizes the feeling of the seam and ensures a smoother, more unified surface when the beds are at the same level.

This mattress is highly recommended for shoppers in warmer regions like Florida, Texas, or the Southeast. It utilizes a sophisticated cooling system featuring GlacierTouch fabric, which provides an immediate cool-to-the-touch sensation. Below the surface, Hypergraph foam infused with Copper works to actively wick away heat and moisture. This combination is particularly effective at maintaining a regulated sleep temperature, even in climates where nighttime heat and humidity are frequent concerns.

For this split king setup, you will need "Split King" sheet sets, which typically include two separate Twin XL fitted sheets and one shared King flat sheet. This allows the head of each mattress to move independently without pulling the sheets off the corners. Because this mattress features a 14-inch profile and a pillow-top border, we recommend selecting deep-pocket sheets to ensure a secure fit during adjustment.

Yes, this mattress is paired with the RTG Sleep 2900 "Head Up Only" adjustable base, specifically designed to address common sleep-disrupting conditions. By using the wireless remote to elevate the head, sleepers can achieve an optimal angle to open airways, which is a proven method for reducing snoring. This elevation also uses gravity to prevent stomach acid from rising, providing significant relief for those suffering from GERD or acid reflux.

Based on our 90-night Mattress Sleep Trial, we encourage an initial 30-night adjustment period to allow your body to adapt to the new support system. If you are not satisfied after this window, you are eligible for a one-time exchange between 30 and 90 days of delivery. This ensures you have the opportunity to find the perfect firmness level while protecting your investment in a high-quality sleep system.