Split King Size Mattresses
No other mattress features the Purple GelFlex Grid, a layer of flexible gel that’s firm enough to support your frame, but soft enough to reduce tension and pressure. It’s comfort that’s great for your whole body.
Each Mattress Purchase Includes
Flexible financing options
Check if you prequalify without affecting your credit score
10 year warranty
so you can rest easy (no pun intended) knowing we’ve got you covered.
100 night trial
to love your mattress. If not, we’ll pick it up. No questions asked.
Free shipping
Get your mattress shipped straight to you at no extra cost – with complimentary white-glove delivery available for select mattresses.
Purple Essential Collection Split King Size
Our Purple Essential Collection mattresses includes Purple's proprietary GelFlex Grid for instantly adaptive support + pressure relief. Find perfect solutions to common sleep complaints at our best price.
Restore Hybrid Collection Split King Size
Purple's bestselling Restore Hybrid collection has been upgraded. Patented GelFlex Grid technology combines with all-new comfort layers and responsive coils to deliver the ultimate in cooling comfort, enhanced pressure relief, and instantly adaptive support.
Rejuvenate Luxe Collection Split King Size
Meet the most comfortable mattress of all time. All-new DreamLayer™ and layered Grid technologies offer unmatched pressure relief and temperature bliss.
Split King RejuvenateTM Mattress
Deeper sleep is yours as buoyant comfort gently conforms to your body on this masterpiece of luxury sleep engineering.
Split Kings starting at $8998
Split King RejuvenatePremier® Mattress
The pinnacle of luxury sleep features first-of-its-kind sleep technology for dramatically enhanced pressure relief.
Split Kings starting at $12998
Is a Split King Size Right For Me?
A Split King mattress is the same size as a king-size mattress, although it is split into two twin size mattresses.
Not a great option for bedrooms smaller than 12 x 12 feet. A 12 x 12 foot bedroom or larger will allow a comfortable amount of space.
Ideal for couples with different sleep preferences, in addition, it helps isolate motion transfer.
Exclusively at Purple
Exclusively at Purple
Revolutionary GelFlex Grid comfort
Our proprietary technology reduces pressure and provides support, adapting to your every move for unparalleled comfort.
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Frequently Asked Questions
A split king size mattress, in total, is 80” long and 76” wide. However, it is composed of two individual twin XL sized mattresses, each of which is 80” long and 38” wide.
Because a split king mattress is made of two separate twin XL mattresses, the two mattresses need to be secured, or else they may drift apart. The best way to do so is to use a bed frame that is designed to function with a split king mattress. We recommend using a split king adjustable base, like the Purple Premium Smart Base, which is designed to keep the individual twin XL mattresses together.
You can use a king size comforter or two twin XL comforters on your adjustable bed. It depends on your preferences (and those of your partner). When using separate twin XL bedding, both partners will be able to choose a duvet that fits their needs. For example, one sleeper might like a lighter comforter and the other might want a warm, heavy one.
A split bed requires different bedding than a standard king. For your adjustable mattress, you’ll need to buy two twin XL fitted sheets.
DO NOT use a standard king fitted sheet with a split king mattress on an adjustable base. Although a king fitted sheet will fit a split king mattress, it will prevent your bed from moving with the adjustable frame. This could damage your adjustable bed frame.
For your split king flat sheets, you can opt for one large king size flat sheet or two twin xl flat sheets. Both will fit your mattress, so your choice depends on your and your partner’s sleep styles.
Check out our storefront where we have designated split king sheet sets.
Yes. In fact, a split king mattress is one of the most comfortable and luxurious mattresses you can buy. This is because they give couples far more control over comfort than standard mattresses. They’re great for couples with individual mattress preferences, for example if one likes a firmer feel than the other.
In addition, they’re great for pairing with an adjustable base. A split king bed with an adjustable base will support your back when you want to sit up and allow you to kick back and elevate your legs without stacking pillows. Regardless of your sleep position, you’ll be able to adjust your mattress to support your breathing, spinal health, and posture. You and your partner will finally be able to sleep in your ideal comfort zones.
The cost of a split king size mattress can vary significantly across brands. Purple’s split king size mattresses cost between $1,698 - $14,998, depending on model choice. Financing options are available for as low as 0% APR. All Purple mattresses include free shipping and easy returns, a 100-night risk-free sleep trial, and a 10-year limited warranty. There’s no stress if the mattress isn’t a match. Just contact Purple’s customer service team within the first 100 days for a refund.
Purple mattresses are not intended for use with a box spring. We recommend adjustable bases for split king mattresses which offer custom comfort to couples. The Purple Adjustable Base, Premium Smart Base and Premium Plus Smart Base all come in split king sizing and are made specifically to support Purple mattresses, so you know they’ll be a perfect fit and protect your investment for years to come.
The best split king size mattress is one that provides the right spinal alignment, pressure relief, and comfort for your body type and sleep style. And for that reason — it’s a Purple mattress. Our patented GelFlex Grid is the only mattress material that instantly relieves pressure for pain relief and proven deeper sleep. Couples love Purple because the Grid sleeps cool, minimizes motion transfer, and adapts to every body type + sleep position. If you and your partner have unique sleep needs and preferences, Purple is best.
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