Casper One Split King Mattress With Head Up Only Base
SKU: 5910055P
Casper signature all-foam mattress. Features a top layer of responsive Breathe + Flex Foam to enhance airflow. Align Memory Foam cradles your body to help you stay asleep. A firm Casper Core base provides long-lasting support while preventing sinking and sagging. Conveniently raise or lower the head of your mattress using the RTG Sleep 2900 adjustable base with wireless remote control.
Features
Adjustable / Foam / Mattress In A Box
Collection
Casper One
Q&A answers generated with AI assistance.
What is the benefit of a split king versus a traditional king adjustable bed?
The primary advantage is individualized comfort. In a standard king adjustable setup, both sides move together; however, the split king allows one partner to sleep flat while the other elevates their head. This setup also significantly reduces motion transfer, as each sleeper is on a completely separate mattress surface, ensuring a more restful night for couples with different sleep preferences.
How does the foam construction of this mattress support an adjustable base?
This mattress is engineered with high-performance all-foam layers, including responsive Breathe + Flex Foam and Align Memory Foam, which are inherently more flexible than traditional innerspring coils. This allows the mattress to contour seamlessly to the angles of the adjustable base while maintaining its structural integrity and preventing the "bridging" effect often seen with less flexible materials.
Does this mattress come with a trial period to ensure it's the right fit?
We understand that adjusting to a new sleep surface takes time. At Rooms To Go, we offer a 90-night Mattress Sleep Trial. After an initial 30-night adjustment period to allow your body to acclimate to the support of the Casper foam layers, you have the option to exchange your mattress if it does not meet your comfort needs.
What is included in a split king adjustable mattress set?
This set consists of two separate twin XL mattresses that, when placed side-by-side, equal the size of a standard king bed. It includes an RTG Sleep 2900 adjustable base and a wireless remote control. This configuration is specifically designed to allow each partner to customize their head elevation independently without disturbing the other sleeper.
What type of sheets are required for a split king mattress?
To ensure the independent adjustable bases can move freely, you will need a split king sheet set. These sets typically include two twin XL fitted sheets (one for each mattress) and a single king-sized flat sheet and comforter to maintain a cohesive look across the bed.
How do the "head-up only" features benefit specific sleep concerns?
The ability to elevate the head of the mattress is a highly effective solution for lifestyle and health needs. By adjusting the head angle via the wireless remote, sleepers can find the ideal position to reduce snoring, alleviate symptoms of acid reflux, or simply relax comfortably while reading or watching TV.
Is this mattress suitable for hot sleepers in more humid climates like Florida or Texas?
Yes. For those living in warmer or more humid regions, temperature regulation is key. This mattress features a top layer of responsive Breathe + Flex Foam specifically designed to enhance airflow and pull heat away from the body. Based on our material expertise, this open-cell foam structure is an excellent choice for maintaining a cooler sleep surface throughout the night.
80"l x 76"w x 11"h; adjustable base 4"h

