If by "split king", you mean two TwinXL beds that you place next to each other without touching, then yes this will work great. But of course you'll have a gap between the beds. If instead you mean two TwinXL mattresses on the same King size bed that either touch or that are enclosed in the same cover/protector, then the benefit will be minimal. Motion still transfers both through the bed frame and through the joint surface between both mattresses. It'll likely improve things a little bit, but I wouldn't hold much hope that it'll make a dramatic difference. Answer from Grim-Sleeper on reddit.com
Reddit
reddit.com › r/mattress › will a split king keep me from getting woken up by my spouse's movements at night?
r/Mattress on Reddit: Will a split king keep me from getting woken up by my spouse's movements at night?
May 17, 2023 -
Fuller description of sleep issues here: https://www.reddit.com/r/sleep/comments/13k231y/i_sleep_better_when_im_in_a_separate_bed_from_my/
In short, over the last several months, I've been remembering getting woken up by my spouse more, and at the same time I was getting more and more tired during the day. Upgrading from a queen to a king mattress helped a little bit, but the issue still persists. Sleeping in separate beds is not an option, because my spouse views our time together in bed sleeping as valuable intimacy in their life.
I've tried several things to alleviate me getting woken up by my spouse, with some success, but I'm still tired during the day.
It seems the only option left is to get a split king mattress (which my spouse says will still count as sleeping in the same bed for their needs) and hoping that completely isolates me from my spouse's movements.
Will a split king mattress accomplish this? Or will it just open up a different style or flavor of getting woken up by my spouse's movements at night?
Top answer 1 of 7
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If by "split king", you mean two TwinXL beds that you place next to each other without touching, then yes this will work great. But of course you'll have a gap between the beds. If instead you mean two TwinXL mattresses on the same King size bed that either touch or that are enclosed in the same cover/protector, then the benefit will be minimal. Motion still transfers both through the bed frame and through the joint surface between both mattresses. It'll likely improve things a little bit, but I wouldn't hold much hope that it'll make a dramatic difference.
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Splitting your mattress into two TwinXL/Split King mattresses will be a good start at gaining your independence while maneuvering towards a bit more motion isolation. Along with this, selecting the right style and model of mattress that focuses towards motion isolation will be key. In regards to the comments on having a space between the two mattresses. A simple foam bridge may assist in eliminating this from being an issue. Have you been looking into any specific models for your new mattress selection?
Flexabed
flexabed.com › home › best adjustable beds › a split king adjustable bed can be life changing for couples
A Split King Adjustable Bed Can Be Life Changing for Couples
November 17, 2022 - A Flexabed adjustable bed is perfect for couples who want to sleep in the same bed after a surgery or illness, or want to be able to control separate sides.
Mattress options for a couple with different preferences - Talk To The Experts - Mattress Underground
My wife and I are trying to figure out our next mattress purchase. We have very different mattress preferences. She is a back sleeper and prefers firm. I am a side sleeper and prefer soft. I thought I wanted a sleep number until I read reviews. Ultimately I want to accomplish a few things with ... More on forum.mattressunderground.com
0
September 30, 2024Will a split king bed prevent a sleep divorce? - Furniture discussion
Agree with underwhere, I know couples who have had to do this, usually because the husband snored so loudly but you have far worse issues with yours. It's ok to sleep in separate rooms for your health sake, that comes first. ... Have just returned from a trip to Scandinavia where every double/queen/king bed ... More on forums.whirlpool.net.au
Options for Couple With Vastly Different Preferences?
You could do a split latex (either hybrid or full latex) mattress that way you could both pick your firmness. Tochta also makes a memory foam mattress where you can each pick what type of foams you want, but that would probably sleep hotter than latex. More on reddit.com
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May 12, 2020split king bed experience? Good or bad?
I love my split king. I sleep better and we keep a few inch gap on our adjustable frames. I ruin mattresses and she doesn't.. I bought a 4.6k intellibed midnight and she is still on last year's purple 4 and my old one is in the trash. For sex it kinda sucks but I'd rather sleep perfectly then worry about that. My wife is a crazy sleeper. And now I sleep better without disturbance. More on reddit.com
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April 1, 2021Do split king beds work with smart home systems?
Yes, many adjustable beds offer smart features, including app control, voice command compatibility, and memory settings. This makes them convenient for tech-savvy users. You can easily integrate them into your smart home setup for seamless operation.
zomasleep.com
zomasleep.com › blog › bedding guides › is a split king adjustable bed for couples worth it?
Is a Split King Adjustable Bed for Couples Worth It?
Are split king beds noisy when adjusting?
Modern adjustable beds operate quietly, thanks to advanced motor technology. Noise concerns are minimal, even for light sleepers or those sensitive to sound. Regular maintenance can help keep the bed functioning silently for years.
zomasleep.com
zomasleep.com › blog › bedding guides › is a split king adjustable bed for couples worth it?
Is a Split King Adjustable Bed for Couples Worth It?
Can adjustable beds help with medical conditions?
Yes, adjustable beds can offer relief for conditions like sleep apnea, acid reflux, and back pain. Elevating the head or feet can improve circulation and reduce discomfort. Always consult with a healthcare provider for personalised advice.
zomasleep.com
zomasleep.com › blog › bedding guides › is a split king adjustable bed for couples worth it?
Is a Split King Adjustable Bed for Couples Worth It?
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Sleep Essentials
sleepessentials.com › home › store › split firmness split beds
Split Firmness Beds for Customized Comfort Sleep
December 15, 2025 - Experience personalized comfort with our Split Firmness Split Beds. Ideal for couples with different preferences. Order now for tailored sleep!
YouTube
youtube.com › watch
Best Split King Mattresses - Which Bed Is Best For You? - YouTube
⏬Click the links below to SAVE on these mattresses!⏬✅Saatva Memory Foam Hybrid - https://www.sleepopolis.com/go/saatva-modern-foam/?w=so2024splitking1Get up ...
Published November 25, 2024
Amazon
amazon.com › Split-Mattress › s
Amazon.com: Split Mattress
Check each product page for other buying options. Price and other details may vary based on product size and color · Sven & Son Classic Adjustable Bed Base, Head and Foot Lift, Massage, Under-Bed Lights, USB, Gel Memory, Zero Gravity Smart Frame - Split King + 14 inch Hybrid Spring Matt (Medium ...
Zoma Sports Mattress
zomasleep.com › blog › bedding guides › is a split king adjustable bed for couples worth it?
Is a Split King Adjustable Bed for Couples Worth It?
January 25, 2025 - Customisable Comfort for Couples: Split king adjustable beds allow each partner to independently adjust their side for personalized comfort, catering to different sleep preferences, health needs, and lifestyle habits.
Heston & Co
hestonandco.co.uk › home
Split Tension Mattress Or Zip & Link? The Ideal Solution For Couples – Heston & Co
This is an ideal solution for partners who have differing weights but also very light sleepers. As the two mattresses are totally independent of each other, this totally eliminates roll together and transferring movement. One of the reasons why king size mattresses are very popular in the UK is because many couples are now choosing split or dual tension mattresses.
Land of Beds
landofbeds.co.uk › beds › adjustable-beds › adjustable-king-size
King Size Adjustable Beds | Land of Beds
Our split king size adjustable beds (150cm x 200cm) are designed for ultimate comfort and flexibility. With independent controls on each side, both sleepers can find their perfect position, whether lying flat, sitting up, or elevating the legs.
Mattress Underground
forum.mattressunderground.com › talk to the experts
Mattress options for a couple with different preferences - Talk To The Experts - Mattress Underground
September 30, 2024 - My wife and I are trying to figure out our next mattress purchase. We have very different mattress preferences. She is a back sleeper and prefers firm. I am a side sleeper and prefer soft. I thought I wanted a sleep numb…
Whirlpool
forums.whirlpool.net.au › home › furniture › will a split king bed prevent a sleep divorce?
Will a split king bed prevent a sleep divorce? - Furniture discussion
Agree with underwhere, I know couples who have had to do this, usually because the husband snored so loudly but you have far worse issues with yours. It's ok to sleep in separate rooms for your health sake, that comes first. ... Have just returned from a trip to Scandinavia where every ...
Tempur-Pedic
tempurpedic.com › split-king
Why Switch to a Split King | Tempur-Pedic
What's a Split King? A king-sized bed made of two Twin Long mattresses that allows you to share your bed without compromising your individual sleep preferences. Learn more.
Sleep Number
sleepnumber.com › home
Shop Split King Mattresses | Sleep Number
Explore our adjustable Split King mattresses, a great choice for couples.
GhostBed®
ghostbed.com › products › split-king
GhostBed Split King Mattress & Adjustable Bed Set | GhostBed®
Split King Adjustable Set
Shop GhostBed’s split king memory foam mattress with adjustable bed base. Free & fast shipping plus a 101-night mattress sleep trial with hassle-free returns.
Price $3,196.00
NCOA
ncoa.org › product-resources › sleep › best-split-king-adjustable-beds
Best Split King Adjustable Beds for Custom Comfort
December 17, 2025 - Our pick for the best split king ... in this review range from $1,198–$2,699. Split king mattresses and beds allow couples to share a bed while enjoying personalized comfort....
Purple
purple.com › mattresses › split-king
Split King Size Mattresses
Ease pain and sleep better with a Purple Mattress engineered for pressure relief and all-night comfort. Free delivery, easy returns, 100-night trial.
COPD Foundation
copdfoundation.org › COPD360social › Community › Questions-and-Answers › What-is-the-best-split-adjustable-bed-.aspx
What is the best split adjustable bed?.
I find that going from sleeping flat to sitting/getting up makes my oxygen level plummet. When I sleep in the easy chair I don’t experience the plummet but rather I stay at good oxy level. I want to sleep with my spouse, so I’m looking for the best split (or duo) control bed/mattress.
Mattress Clarity
mattressclarity.com › home › best mattress
The Best Split King Mattresses (2026) - We Tested 500+ Beds
November 19, 2025 - According to our sleep experts and testers, the best split king mattress is the Nectar Premier Memory Foam because of its appeal for couples, compatibility with adjustable bed frames, and surprising edge support for an all-foam mattress.
Sleep Foundation
sleepfoundation.org › mattress information
What Is a Split King Bed?
July 15, 2025 - A split king bed is ideal for couples that want to use an adjustable bed frame, but not have both sides of the bed adjusted to the same level or at the same time. With a split-king-specific adjustable bed frame, one bed partner can lie flat ...
Amerisleep
amerisleep.com › blog › mattress guides › king vs split king mattress: which is better for couples? (2026 guide)
King vs. Split King: What's the Difference? - Amerisleep
Couple compatibility: King suits partners with similar preferences; Split King essential for different firmness needs or sleep disorders · Customization benefits: Split King allows individual adjustable bases, firmness choices, and temperature ...
Published November 24, 2025 Views 5
Casper Sleep
casper.com › home › dreamer's digest › dreamer's digest
Split King Bed Pros and Cons to Consider | Casper Blog
August 28, 2024 - Most of the advantages of a split king-size bed fall under one umbrella: limitless possibility. So, if you and your partner have been struggling to get into a snooze groove, this mattress style will give you lots of room to find a solution that works for both of you. Even the happiest of couples ...