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What Is a Split King Adjustable Bed: An Essential Guide

What Is a Split King Adjustable Bed: An Essential Guide

A split king adjustable bed is a modern sleep solution that offers unparalleled comfort and flexibility. Ideal for couples with different sleep preferences, these beds combine individualized comfort with luxury.

How Does a Split King Adjustable Bed Work?

Understanding the functionality of a split king adjustable bed is key to appreciating its unique benefits:

  1. Dual Mattress System:

    • A split king bed comprises two twin XL mattresses placed side by side. This creates a bed size equivalent to a king but with individual mattresses for each side.
    • The ‘split’ aspect allows each person to have their own separate sleeping space.
  2. Adjustable Base Mechanism:

    • Each twin XL mattress rests on its own adjustable base. These bases can independently move and adjust, allowing for different positions on each side of the bed.
    • Adjustments typically include changing the angle of the head and feet sections, which can be controlled via remote or a smartphone app.
  3. Ideal for Varied Preferences: This setup is perfect for couples with different sleeping preferences. For instance, one person can elevate the head of the bed to reduce snoring, while the other side remains flat.

  4. Advanced Features: Many adjustable bases come with additional features like built-in massage options, under-bed lighting, and USB ports.

Pros and Cons of Split King Adjustable Bed


  1. Individual Comfort:

    • Each person can adjust their side of the bed to their liking without disturbing their partner.
    • Ideal for addressing individual health needs, such as back pain or acid reflux.
  2. Improved Sleep Quality: Customizable positions can lead to better sleep, reduced snoring, and relief from various sleep-related issues.

  3. Independent Movement: Movements on one side of the bed do not transfer to the other, ensuring minimal disturbance to each sleeper.

  4. Customizable Options: Offers the opportunity to select different mattress types for each side to cater to personal comfort preferences.


  1. Cost: Split king adjustable beds tend to be more expensive than standard king beds due to the advanced technology and dual mattress system.

  2. Complex Setup: Requires more effort to set up due to the dual nature of the bed and the mechanical components involved.

  3. Bedding Specificity: Specialized bedding is needed, such as separate twin XL sheets and potentially a split king mattress protector.

  4. Space Requirements: These beds can be quite large and may not fit comfortably in smaller bedrooms.

For those considering a split king adjustable bed, a mattress that complements the bed’s functionality is crucial. Puffy mattresses, known for their comfort and adaptability, can be an excellent choice, ensuring that each individual’s sleep experience is optimized.

Dimensions of a Split King Adjustable Bed

How Wide Is a Split King Adjustable Bed?

Interested in how Puffy stacks up against other brands? Check out our mattress comparisons: Puffy vs Purple, Puffy vs Nectar, Puffy vs Casper, Puffy vs Leesa, Puffy vs Saatva, Puffy vs DreamCloud, and Puffy vs Tuft and Needle.

How to Make a Split King Adjustable Bed

Creating a split king adjustable bed involves several key steps to ensure both comfort and functionality:

  1. Choosing the Right Mattresses: Select two high-quality twin XL mattresses that meet individual comfort preferences. Since each side is adjustable, you might choose different firmness levels or materials for each mattress.

  2. Purchasing Adjustable Bases: Acquire two twin XL adjustable bases that are compatible with your chosen mattresses. Ensure the bases have the desired features, such as remote control adjustment, massage settings, or USB ports.

  3. Assembling the Bed Frame: Set up the bed frame designed to hold the two adjustable bases. This frame should be sturdy and capable of supporting the movement of the adjustable bases.

  4. Positioning the Mattresses: Place each twin XL mattress on its respective adjustable base. Ensure they are properly aligned and securely in place.

  5. Adding Accessories: Incorporate accessories such as mattress protectors, fitted sheets for each mattress, and a split king bed bridge if you want to minimize the gap between the mattresses.

  6. Electrical Setup: Connect the adjustable bases to a power source. Organize and secure the cables to avoid tripping hazards and ensure easy access to power outlets.

For optimal comfort, consider pairing your split king adjustable bed with high-quality Puffy mattresses, known for their comfort and support.

Check out Puffy mattress reviews from real customers and see how we compare with other brands.

How to Connect Split King Adjustable Bed

Connecting a split king adjustable bed effectively ensures that the two halves function seamlessly as one unit:

  1. Aligning the Bases: Position the two twin XL adjustable bases side by side. Align them so they are flush against each other, ensuring there are no gaps.

  2. Securing the Bases: Many adjustable bases come with connecting straps or brackets. Use these to secure the two bases together, preventing them from shifting apart.

  3. Using a Bed Bridge: A bed bridge can be a useful accessory to bridge the gap between the two mattresses. It provides a more unified sleep surface and helps prevent pillows or sheets from slipping into the gap.

  4. Adding a Split King Mattress Protector: Consider adding a split king mattress protector that covers both mattresses. This not only protects the mattresses but also helps hold them together.

  5. Final Adjustments: After connecting the bases and adding the mattresses, make any necessary adjustments to ensure that the bed operates smoothly and that both sides are synchronized in their movements.

Use our store locator to find the closest furniture or mattress store near you and feel the cloudlike comfort of our Puffy Mattress in person.


A split king adjustable bed offers a unique blend of individualized comfort and luxury. While it comes with certain considerations like cost and setup, the benefits of customized sleep and health advantages are compelling. And when paired with the right mattresses, a split king adjustable bed can significantly enhance your sleeping experience.

Choose your Puffy Adjustable Base

Customize your comfort with the Puffy Serenity Adjustable Base.

Sleep supported with this remote-controlled luxury adjustable base:

  • Zero gravity elevation.
  • Designed for all mattresses.
  • Lifetime warranty.
  • 101-night sleep trial.
  • Free shipping and returns.

Shop the award-winning Puffy collection.

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Experience the cloudlike comfort and support of our hybrid and memory foam mattresses.

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Prices start from $599

puffy bed frame

Customize your comfort with a bed frame.

Upgrade your sleep with our stylish and supportive bed frames, bases, and foundations.

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puffy beddings

Elevate your sleep with luxury bedding.

Add luxury to bedtime with our silky soft sheets, protectors, blankets, and more.

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