Kingsdown Smart Match 2.0 Split King Mattress with RTG-Sleep 5900

This mattress excels at motion isolation through two primary features: the individually wrapped coils and the specialized undetectable divider. Because the coils move independently and the divider creates a physical break between the two mattress halves, vibrations from one side are not easily transferred to the other, ensuring a more peaceful sleep even with a restless partner.

This mattress is engineered with a specialized support system featuring hundreds of individually wrapped coils that contour to your body. To specifically address lower back discomfort, the construction includes targeted firmer coils in the center third of the mattress. This zones the support where it is needed most, helping to maintain proper spinal alignment throughout the night.

This model is designed with an undetectable divider that separates both sides of the mattress. This innovative feature is specifically intended to reduce partner disturbance from movement while maintaining a cohesive sleep surface, effectively minimizing the physical sensation of the split while providing the benefits of independent movement.

The RTG-Sleep 5900 adjustable base allows each sleeper to independently raise or lower the head and foot of their side of the mattress using a wireless remote. This is particularly beneficial for couples with different lifestyle needs, such as one partner wanting to sit up to read or watch TV, or for managing health concerns like snoring or acid reflux by elevating the head without affecting the other person's position.

Because the mattress has a generous 16-inch height and is paired with an adjustable base, we recommend using "deep pocket" fitted sheets designed for mattresses up to 18 inches. Look for sheets with heavy-duty elastic or corner straps to ensure they stay securely in place as the RTG-Sleep 5900 base moves through various positions.

Yes, this mattress utilizes a multi-layer cooling strategy ideal for temperature regulation. The cover is woven with silk and wool fibers, which are naturally moisture-wicking and breathable. Below the surface, a gel quilt foam layer and Tri-Tech gel memory foam—infused with copper, silver, and graphite—work together to dissipate body heat, making it an excellent choice for maintaining a cool sleep surface in warmer, coastal, or humid environments.