The Ultimate Guide to Choosing the Best Split King Mattress (with Adjustable Base)

So you want to level up your sleep game, huh?

You’re in the right place.

In this guide we’ll cover everything you need to know about choosing the best split king mattress for you. We’ll start with a brief overview, then dive into the most important factors you’ll need to consider.

adjustable king size split mattress with adjustable base

What Exactly is a Split King Mattress?

It’s exactly what it sounds like! Picture a king mattress split in two, right down the middle.

Why did they tear a mattress in half? Good question.


Also, no, they didn’t really tear it in half…think of it as two twin XL mattresses placed side by side, making up the dimensions of a standard king-size bed. The key feature of a split king mattress is that each side of the bed can be adjusted independently of the other. You don’t want to sit up to read like your spouse does? No problem. You can both have it your way.

It’s a popular choice for couples who have different sleep preferences or for those who want greater control over their sleeping environment.

Another important selling point of this type of mattress is “reduced motion transfer.”

Yep, you guessed right, that’s a fancy way of saying that your spouse, who is always moving around on their side of the bed in the middle of the night, is going to be much less likely to wake you up on a split king because their “motion” doesn’t “transfer” over to your side of the bed as easily.

Now that’s something worth celebrating!

So What About the Adjustable Base?

The adjustable base is what gives a split king its magic. These bases allow you to find the perfect angle for sleeping, reading, watching TV, or simply relaxing in bed. 

With features like massage functions, adjustable lumbar support, and remote control operation, adjustable bases offer a whole new level of comfort and convenience. Say goodbye (permanently!) to propping pillows and hello (with some gusto!) to personalized comfort at the touch of a button.

Why Does Getting the Best Split King Mattress Matter?

Whew, that felt like a tongue twister.

Sleep is everything these days.

A good mattress and adjustable base are crucial for quality sleep. Forgive the dad joke, but your mattress can make a night and day difference! Your mattress supports your body while you sleep, promoting proper alignment and reducing discomfort.

Adding in an adjustable base allows you to customize your sleeping position depending on what you need on a given night.

Enter the split king mattress with an adjustable base – a game-changer for couples with different sleep preferences. This innovative setup consists of two twin XL mattresses that can be adjusted independently, providing personalized comfort for each sleeper

With a split king mattress, you can say goodbye to compromise and hello to a restful night's sleep.

Factors to Consider when Choosing your Mattress:

Mattress Type:

When choosing between a memory foam, innerspring, or hybrid mattress type for your split king setup, consider your personal preferences and sleep needs.

This may be one area where you need to go in to a store and test some out for yourself.

Memory foam mattresses offer contouring support and pressure relief, making them ideal for side sleepers and those with joint pain. 

Innerspring mattresses, on the other hand, provide responsive support and excellent airflow, making them a great option for hot sleepers and those who prefer a more traditional feel.

Hybrid mattresses combine the best of both worlds, with a supportive coil base and a layer of memory foam or latex for added comfort. 

Ultimately, the best mattress type for you will depend on factors such as your preferred sleep position, body weight, and temperature preferences. Take the time to test out different options and choose the one that feels most comfortable and supportive for your individual needs.

Mattress Firmness

When choosing mattress firmness, several factors should be considered to ensure you select the right level of support and comfort for your needs. 

First, consider your preferred sleep position. Side sleepers typically benefit from a softer mattress that contours to the curves of their body and relieves pressure points, while back and stomach sleepers often prefer a firmer surface that keeps their spine properly aligned.

Additionally, take into account your body weight; lighter individuals may find a softer mattress more comfortable, while heavier individuals may need a firmer surface for adequate support.

Lastly, consider any specific health conditions or preferences, such as back pain or a preference for a plush feel versus a more supportive one. By considering these factors, you can choose a mattress firmness that promotes restful sleep and enhances your overall comfort and well-being.

Size and Compatibility

The last thing you want is to buy a mattress online, have it arrive at your doorstep, only to find out that it doesn’t fit in your room.

Guys. There’s a simple way to prevent this.

Check dimensions ahead of time! Measure your room. Make sure everything matches up! (Don’t have a tape measure? I got you)

For reference, your typical split king mattress consists of two separate mattresses, each measuring approximately 38 inches in width and 80 inches in length.

That brings us to a total combined width of 76 inches and length of 80 inches when placed together side by side.

Now go measure your room. I’ll wait right here.

Factors to Consider when Choosing your Adjustable Base:

When selecting an adjustable base for your split king mattress, several factors should be taken into consideration to ensure optimal comfort and functionality:

1. Customizable Positions:

Look for a base that offers a variety of customizable positions for both the head and feet elevation. This allows you to find the perfect angle for sleeping, reading, watching TV, or lounging.

2. Massage Functions

Some adjustable bases come with built-in massage features, which can help soothe tired muscles and promote relaxation. Consider whether you would benefit from this additional functionality.

3. Remote Control Operation:

Opt for a base that offers easy-to-use remote control operation, allowing you to adjust the position of your bed with the touch of a button. Make sure the remote control is user-friendly and intuitive.

4. Quiet Operation:

Ensure that the adjustable base operates quietly, without any loud or disruptive noises that could disturb your sleep. This is especially important if you plan to adjust the position of your bed frequently during the night.

5. Durability and Stability:

Choose a base that is sturdy and built to last. Look for models made from high-quality materials and with a robust construction that can support the weight of your mattress and body without sagging or bending over time.

6. Compatibility with Mattress Type:

Consider whether the adjustable base is compatible with the type of mattress you have or plan to purchase. While most bases are designed to work with a wide range of mattress types, it's essential to double-check compatibility to avoid any compatibility issues.

By considering these factors, you can choose an adjustable base that meets your specific needs and preferences, enhancing your overall sleep experience.

Our Favorites:

  1. Our top overall pick is the EGOHOME Split King Adjustable Bed:
         - decent price point (cheaper than most)
         - good quality
         - highly rated
         - wireless remote
         - zero gravity mode
         - easy to transport

  2. Next up, the Sven & Son Platinum Adjustable Bed
         - higher price point, but much more aesthetically pleasing
         - comes with a 25 year warranty
         - hybrid spring/memory foam mattress
         - emergency power source

  3. Last but not least, the ESHINE Split King Adjustable Bed
         - good price point
         - full-body massage system
         - easy install
         - high density support foam
         - minimalist frame

Maintenance Tips

Maintaining Your Split King Mattress

To ensure your split king mattress and adjustable base stand the test of time, it's essential to practice proper maintenance and care. 

Start by rotating your mattress regularly to prevent uneven wear and tear, typically every three to six months. This simple step can help distribute weight more evenly and extend the life of your mattress. Additionally, invest in a quality mattress protector to shield against spills, stains, and dust mites, keeping your mattress clean and hygienic for years to come.

When it comes to cleaning, follow the manufacturer's guidelines for your specific mattress type. Most mattresses can be spot cleaned with a mild detergent and warm water, while others may require professional cleaning. 

Maintaining your Adjustable Base

For adjustable bases, regularly check for loose bolts or screws and tighten them as needed to prevent instability. If you encounter any issues with your adjustable base, refer to the user manual for troubleshooting tips or contact the manufacturer for assistance. By following these simple steps, you can maximize the lifespan of your split king mattress and adjustable base, ensuring many nights of restful sleep ahead.

Summing it All Up:

In conclusion, choosing the best split king mattress with an adjustable base can significantly impact your sleep quality and overall comfort. By understanding the benefits of a split king mattress and adjustable base, you can personalize your sleep experience and cater to individual preferences. 

With factors like mattress type, firmness, size, and compatibility in mind, you can make an informed decision that meets your specific needs. Additionally, selecting an adjustable base with customizable positions, massage functions, and remote control operation enhances comfort and convenience. 

By following maintenance tips and practicing proper care, you can prolong the lifespan of your split king mattress and adjustable base, ensuring many nights of restful sleep ahead.

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