Beautyrest Black KX-Class Firm Mattress - Twin XL

Elevate your sleep to a luxurious reward night after night. As the premier offering in our most advanced collection yet, Beautyrest Black Hybrid KX-Class now offers up to 21% more support where your body needs it the most.* With help from our new plant-based cooling technology, the collection provides up to 18% more cooling power to keep you comfortable as you fall asleep and all night long.**
In addition to our support and cooling systems, the Beautyrest Black Hybrid KX-Class includes comfort, pressure-relieving and support upgrades as well as 2X more memory foam*** compared to Beautyrest Black Hybrid LX-Class and CX-Class models for our most comfortable mattress ever. A luxurious layer made with silk, alpaca and cashmere provides unmatched comfort and breathability while Self-Response Latex ensures individualized support for different parts of your body. Lasty, 2000 micro-coils add an additional layer to our Premier Support System and provide precise conformability.
These innovative features are paired with an all new modern design and hybrid construction to create a first-class sleep experience that will leave you feeling invigorated to take on your day.


*in the center-third of mattress, exact percentage varies by model
**vs. Harmony Lux Collection for the first 20 minutes
***by weight