One solution that will allow you to still individually move your sides would be to use a flex top or solid Sleep Number sheet set. It will keep you from falling in the gap, but still allow movement. I have some customers who also use a flextop or solid topper or mattress, pad and sheet, however the more layers on top tomorrow awkward individual movement might be. The good thing is that with these solutions, you are not forcing more into the split, and as needs change, or as you figure out how to cuddle or have activities side to side they can be removed. Answer from Deleted User on reddit.com
🌐
Walmart
walmart.com › home
Split King Gap Filler Adjustable Bed
$3699current price $36.99Jakoola Foam Bed Bridge Twin To King Converter, Bed Gap Filler for Small Gap, Mattress Gap Connector, White ... Split King Gap Filler for Adjustable Bed,Twin to King Bed Converter Kit,Bed Bridge Twin to King,Mattress Connector with Washable Cover,for Guests Stayovers,Family Room(75in×10in)
Discussions

How to keep split king (twin xl) mattresses from moving apart on adjustable base?
When all else fails, check out Amazon More on reddit.com
🌐 r/Mattress
44
18
February 25, 2024
Split bed gap filler?
One solution that will allow you to still individually move your sides would be to use a flex top or solid Sleep Number sheet set. It will keep you from falling in the gap, but still allow movement. I have some customers who also use a flextop or solid topper or mattress, pad and sheet, however the more layers on top tomorrow awkward individual movement might be. The good thing is that with these solutions, you are not forcing more into the split, and as needs change, or as you figure out how to cuddle or have activities side to side they can be removed. More on reddit.com
🌐 r/sleepnumber
20
18
October 14, 2023
split 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
🌐 r/Mattress
98
43
April 1, 2021
Adjustable Base Split King Separating
We use one of the mattress bridges with an adjustable base and a mattress protector on top of it. It works for all but the most extreme settings. I think having the protector helps keep the sides from popping off durning adjustment. More on reddit.com
🌐 r/Mattress
11
13
July 13, 2020
People also ask

Can I use a split king on a regular king bed frame?
Yes, you can use a split king on a regular king bed frame as long as the frame has proper center support. The dimensions of a split king (two twin XL mattresses) match exactly with a standard king frame. However, regular king frames may not have features designed to prevent mattress separation. For the best results, add non-slip pads between the mattresses and frame, and consider using mattress connector straps for extra stability.
🌐
amerisleep.com
amerisleep.com › blog › mattress guides › how to keep a split king mattress together
How to Keep a Split King Mattress Together - Amerisleep
Can I use regular king sheets on my split king mattress?
Regular king sheets can work on a split king mattress, but they're not ideal for preventing gaps. Standard king fitted sheets may not have enough elastic tension to keep both mattresses firmly together. Instead, look for split king sheet sets specifically designed with features like center connectors or extra-strong elastic. If you do use regular king sheets, make sure they have deep pockets and strong elastic that can grip both mattresses securely.
🌐
amerisleep.com
amerisleep.com › blog › mattress guides › how to keep a split king mattress together
How to Keep a Split King Mattress Together - Amerisleep
Will a mattress topper really help keep my split king mattresses together?
Yes, a mattress topper can significantly help keep your split king mattresses together. A single king-sized topper creates a unified surface across both mattresses and helps bridge the gap between them. The weight of the topper adds stability that prevents the mattresses from shifting apart during the night. For best results, choose a topper that's at least 2 inches thick and made of memory foam or latex that holds its shape well.
🌐
amerisleep.com
amerisleep.com › blog › mattress guides › how to keep a split king mattress together
How to Keep a Split King Mattress Together - Amerisleep
🌐
Wayfair
wayfair.com › keyword.php
Split King Bed Connector | Wayfair
Whether you have a split king setup or prefer dual mattresses, or to enjoy the utmost comform of an adjustable bed, or even to turn around to take care of baby on the baby bed our bed bridge connector enhances your sleeping experience by eliminating ...
🌐
Saatva
saatva.com › home › 6 ways to keep a split king mattress together
How to Keep a Split King Mattress Together | Saatva
Ideally, you want two people to properly install the bed bridge, but installing it is pretty simple. Simply move the two parts of your split king as close together as possible and place the mattress bridge between them.
Find elsewhere
🌐
Casper Sleep
casper.com › home › dreamer's digest › dreamer's digest
How to Keep Split King Mattresses Together: 7 Tips | Casper Blog
August 28, 2024 - Some split king bed frames come with connectors that let you adjoin the two frames, forming a single, unified base.
🌐
GhostBed®
ghostbed.com › pages › problems-with-split-king-adjustable-beds
4 Problems with Split Kings (& How to Solve Them) | GhostBed®
As with the gap filler option, using a king-sized topper means you won’t be able to raise one side of the bed at a time. Add a headboard. A headboard will keep your mattresses stationary and secure. If you already have a headboard you love, great! All you need to make it work is a set of headboard brackets, which we sell separately here at GhostBed. And don’t worry, your split king won’t side apart while getting intimate.
🌐
Amazon
amazon.com › ask › questions › Tx23NHFGFPHBK1T
Q: how do you link split beds together?
Hi great question put your two bases together close to the area where they will stay in place then loosen the foot inside legs 1/4" then place the notch holes on strap over the stud on legs make sure you adjust for King size or Cal King hold in place and tighten legs then do same to front inside ...
🌐
Amerisleep
amerisleep.com › blog › mattress guides › how to keep a split king mattress together
How to Keep a Split King Mattress Together - Amerisleep
November 13, 2025 - You can install these straps without removing your bedding by sliding them between the mattresses and your bed frame. Some split king bed frames include built-in connectors that join the two twin XL frames together at the head and foot.
🌐
Amazon
amazon.com › Bridge-Twin-Split-Filler-Adjustable › dp › B07GQ4RSY5
Amazon.com: Split King Gap Filler for Adjustable Bed – Mattress Slide Stopper | Prevent Sliding with Anti-Slip Bed Bridge Connector | Keep Mattress from Sliding – Twin XL Gap Solution | Bedbinder DeLuxe® : Home & Kitchen
⭐ 𝐄𝐥𝐢𝐦𝐢𝐧𝐚... Reconnect Your Bed in Seconds. Designed for split king and twin XL adjustable beds, the Bedbinder fills the gap and holds your mattresses firmly together—no more drifting apart in the ...
🌐
Amazon
amazon.com › mattress-straps-hold-split-king › s
Amazon.com: Mattress Straps To Hold Split King
Check each product page for other buying options. Price and other details may vary based on product size and color · ENITYA Split King Gap Filler for Adjustable Bed, Twin to King Converter with Removable Washable Cover, Twin Mattress Connector for Guest Stayover/Family Room/Vacation Rentals(75" ...
🌐
Amazon
amazon.com › ENITYA-Bridge-Twin-Converter-Adjustable-Connector › dp › B0BS62JVFZ
Amazon.com: ENITYA Split King Gap Filler for Adjustable Bed, Twin to King Converter with Removable Washable Cover, Twin Mattress Connector for Guest Stayover/Family Room/Vacation Rentals(75" L x 10" W) : Home & Kitchen
Proprietary Gap Filling System-Entiya Split King Gap Filler for Adjustable Bed,Making the bed bridge has excellent support and soft enough touching. After testing a 90 pounds dogs were supported, very sturdy.While most other Bed connector are easier sink in to the middle of the bed gap after a short using.
🌐
Reddit
reddit.com › r/mattress › how to keep split king (twin xl) mattresses from moving apart on adjustable base?
r/Mattress on Reddit: How to keep split king (twin xl) mattresses from moving apart on adjustable base?
February 25, 2024 -

We have a split king with adjustable base. We also have dogs and a 9yo son, which means our twin xl mattresses get split apart constantly. Every day I have to rescue blankets from “the crack” and push the mattresses together. Does anyone have any good methods to keep the mattresses together? Has anyone tried attach some kind of a bracket to the sides of the base to prevent the mattresses from sliding off, kind of like the wire bracket at the foot of the base?

Edit: I bought these brackets.

🌐
vekkia
vekkia.com › home › vekkia split king gap filler for adjustable bed,twin to king bed converter kit,bed bridge twin to king,mattress connector with washable cover,for guests stayovers,family room
Untitled
Bigger Bed In An Instant - Simply use this twin bed connector to make a king by pushing the two mattresses together and placing the bed bridge on top between them.
🌐
eBay
ebay.com › shop › split-king-connector
Split King Connector | eBay
Split King Gap Filler for Adjustable Bed,Bed Bridge-Twin to King Converter to...Opens in a new window or tab ... Bed Bridge Mattress Connector with Sheet Straps , Twin to King ConverterOpens in a new window or tab
🌐
Lowest Cost Mattress
lowestcostmattress.com › collections › adjustable beds & accessories › [bed bridge twin to king] split king gap filler for adjustable bed - mattress connector replaces a mattress gap filler and better bedder band. twin to king bed converter kit to join two twin beds
[Bed Bridge Twin to King] Split King Gap Filler for Adjustable Bed - Mattress Connector Replaces a Mattress Gap Filler and Better Bedder Band. Twin to King Bed Converter Kit to Join Two Twin Beds
[Bed Bridge Twin to King] Split King Gap Filler for Adjustable Bed - Mattress Connector Replaces a Mattress Gap Filler and Better Bedder Band. Twin to King Bed Converter Kit to Join Two Twin Beds
Brand: Bedbinder DeluxeColor: WhiteFeatures: ♥💓 Looking For A Bed Bridge That Prevent You From The Gap In The Middle Of Your Twin Bed, Right? 💓♥ This Bed Bridge of Bedbinder DeLuxe is all you need when you want to get rid of the your Bed Gap or Sliding Mattresses. This Twin Bed Connector does not only replace the Bed Gap Filler or Twin Gap Filler, but this Mattress Connector also works as a Bed Space Filler and can be used with or without a Better Bedder or a Topper 👑🛌 Over 75.000 Happy Customers In The USA 🛌👑 Having these Bed Straps for Mattress of Bedbinders, you don't need your Gap Filler
Price   $67.00
🌐
Bedbinders
bedbinders.com › home
Home - Bedbinders
May 2, 2024 - Eliminate Mattress Gaps for a Unified Bed Without Constant Adjustments Bedbinder DeLuxe is an invisible mattress connector designed to stop mattress gaps and prevent sliding mattresses, especially on adjustable beds and split mattresses.
🌐
Sleepopolis
sleepopolis.com › home › sleep product reviews › best mattress joiners
Best Mattress Joiners (2026) | Sleepopolis
April 3, 2023 - This all-in-one conversion kit gives you everything you need to join your mattress in one handy, affordable package. Featuring a bed bridge, a 33-foot long strap and a storage case, you’re able to not only join two twin beds to make a king, but even two queen-sized mattresses for an even larger sleeping area.
🌐
AliExpress
aliexpress.com › item › 1005008625352788.html
Bed Bridge Twin to King Converter Kit Split King Gap Filler ...
Sorry, we can't find that page · But we still have lots for you to discover ~ · back to homepage · Help Center, Disputes & Reports, Return&refund policy, Report IPR infringement, DSA/OSA Information, Integrity Compliance, Transparency Center, Submit report (non-registered users), Recalls, ...
🌐
Target
target.com › p › costway-9-wide-bed-bridge-twin-to-king-converter-kit-w-strap-gap-filler-bed-connector › - › A-90458790
Costway 9" Wide Bed Bridge Twin to King Converter Kit w/ Strap Gap Filler Bed Connector : Target
Shop Costway 9" Wide Bed Bridge Twin to King Converter Kit w/ Strap Gap Filler Bed Connector at Target. Choose from Same Day Delivery, Drive Up or Order Pickup. Free standard shipping with $35 orders.