Casper Renew King Mattress with Head Up Only Base - Image 1
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Casper Renew King Mattress With Head Up Only Base

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SKU: 5900078P

Why Choose It - Casper
4.5 Million
4.5 Million

4.5 million happy sleepers and counting.

4 Out Of 5 Sleepers
4 Out Of 5 Sleepers

4 out of 5 sleepers recommend Casper to a family member.

88% of Customers
88% of Customers

88% of customers report improved sleep quality.

Casper : BTF Content
We Obsess Over Every Thread
We Obsess Over Every Thread

100+ product tests, 25 prototyping & testing machines and 1 ergonomist to ensure the best sleep humanly possible.

Easy Comfort
Easy Comfort

Casper tirelessly tests every foam and thread to ensure the best balance of comfort, support and cooling.

No Gimmicks
No Gimmicks

Every material that Casper uses must help sleep and must be tested. No fads, just thoughtful design crafted by sleep experts.

Built for uninterrupted rest with motion-absorbing foam layers and a flexible stretch cover that moves with you.Provides responsive support and adapts to any sleep position, with a touch of bounce to help reduce tossing and turning.Its Renew Flex Foam is a breathable, open-cell foam that promotes airflow and helps you wake up refreshed.Conveniently raise or lower the head of your mattress using the RTG Sleep 2900 adjustable base with wireless remote control.

SKU: 5900078P

Features

Adjustable / Foam

Collection

Casper Renew

Warranty

10 year limited warranty -

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20 year limited warranty -

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Q&A answers generated with AI assistance.

Does this foam mattress sleep hot, especially in humid climates?

This mattress is engineered with Casper's Renew Flex Foam, which features a breathable, open-cell structure. Unlike traditional high-density memory foams that can trap body heat, this open-cell design promotes continuous airflow. This makes it an excellent choice for sleepers who tend to run warm or for those living in humid, southern climates where temperature regulation is a priority for a restful night.


Can I use this adjustable mattress and base set with my existing bed frame?

With standard king dimensions of 80"L x 76"W and a low-profile 4-inch base, this set is designed to be compatible with most modern, decorative bed frames. The slim profile of the RTG Sleep 2900 base allows it to sit discreetly within your frame without significantly altering the height of your bed, maintaining the intended aesthetic of your bedroom furniture.


How do you operate the adjustable features of the bed?

The RTG Sleep 2900 adjustable base is operated via a user-friendly wireless remote control. This allows you to effortlessly raise or lower the head of the mattress to your preferred angle with the touch of a button. Because it is wireless, you can keep the remote on your nightstand for easy access throughout the night without dealing with cumbersome cords.


What are the primary benefits of a "head up only" adjustable base?

A head-up adjustable base is a specialized foundation designed to elevate the upper body independently. This ergonomic adjustment is highly effective for reducing snoring by opening the airways and can significantly alleviate symptoms of acid reflux or GERD by using gravity to keep stomach acid down. Beyond health benefits, it transforms your mattress into a comfortable space for reading, watching TV, or working on a laptop without the need for propped-up pillows.


Is a foam mattress on an adjustable base suitable for side sleepers?

Yes, this mattress is particularly well-suited for various sleep positions, including side sleeping. The flexible stretch cover and responsive foam layers are designed to adapt quickly to your body’s pressure points, such as the shoulders and hips. When the head of the base is slightly elevated, it can also help reduce pressure on the shoulders, providing a more contoured and supportive feel than a traditional flat foundation.


Will I feel my partner moving on the other side of this king mattress?

One of the hallmark features of this Casper mattress is its multi-layer foam construction specifically designed for motion absorption. The foam layers are engineered to isolate movement at its source, preventing energy from transferring across the bed. This ensures that even on a large king surface, one person can shift positions or get out of bed without disturbing their partner's sleep.

80"l x 76"w x 10.50"h; adjustable base: 4"h