Beautyrest Black Series Three Firm King Mattress Set with Head Up Only Base

Absolutely. We prioritize both safety and craftsmanship. All foams used in this mattress are CertiPUR-US certified, meaning they have been independently tested to meet rigorous standards for emissions, content, and durability. Furthermore, these mattresses are proudly assembled in the USA, ensuring that each set meets strict domestic quality control standards before arriving in your home.

This mattress is engineered for those who require high-level support without sacrificing a luxurious surface feel. The "Series Three" model achieves this through a sophisticated layering system: exclusive 2K Nano Coils and Self-Response Latex provide responsive pressure relief that contours to your body, while the quilted pillow top offers an immediate layer of plushness. This ensures you receive the orthopedic benefits of a firm mattress while enjoying the "intersection of luxury and innovation" that the Beautyrest Black collection is known for.

This standard King set includes a single, continuous 76-inch wide mattress and base, which is ideal for couples who want a seamless sleeping surface without a gap in the middle. If you and your partner have vastly different sleep schedules or require independent head adjustment, you may consider the "Split King" variation. However, for most sleepers, this standard King set provides a cohesive and expansive luxury sleep surface with unified adjustment.

The RTG Sleep 2900 "Head Up Only" base is a versatile lifestyle upgrade. By using the wireless remote to elevate the head of the mattress, you can find the perfect ergonomic position for reading, watching TV, or working on a laptop. From a wellness perspective, as noted in our sleep expertise guides, elevating the head can also help alleviate symptoms of acid reflux and reduce snoring by keeping the airways more open compared to lying flat.

This technology represents the pinnacle of individualized support and motion separation. Unlike standard single-wire coils, triple-stranded coils are stronger and more durable, offering the highest level of stability. For couples, this means that even on a large king-sized surface, movement on one side is absorbed and localized, preventing "motion transfer" and ensuring that one partner’s movements do not disturb the other's rest.

Yes. For shoppers in regions like Florida or Texas where heat retention can be a major concern, this mattress features an advanced cooling ecosystem. The sleep surface is woven with cooling yarns and specialized vertical fibers designed to transfer heat away from the body. Additionally, the premium memory foam is infused with diamond particles—a material chosen for its exceptional thermal conductivity—to help dissipate heat throughout the night and maintain a regulated sleep temperature.