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
🌐
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   US$67.00
🌐
Amazon
amazon.ca › Bridge-Twin-Split-Filler-Adjustable › dp › B07LDV45RT
[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 : Amazon.ca: Home
Your mattresses will be so close together that there is no twin gap filler or Betterbedder needed to make a twin to king bed. Thanks to this Bed straps for mattress, you create Family beds in minutes. This is the best bed bridge and split king gap filler for adjustable bed, and it is installed in minutes.
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
🌐
Puffy
puffy.com › blog › lux comfort › what is a split king adjustable bed: an essential guide
What Is a Split King Adjustable Bed: An Essential Guide
January 30, 2024 - Use these to secure the two bases together, preventing them from shifting apart. Using a Bed Bridge: A bed bridge can be a useful accessory to bridge the gap between the two mattresses.
🌐
eBay
ebay.com › home & garden › furniture › beds & headboards › beds & bed frames
Split King Gap Filler for Adjustable Beds – Bed Bridge Twin to King Bed Converte | eBay
Split King Gap Filler for Adjustable Beds – Bed Bridge Twin to King Bed Converte
TURN TWO BEDS INTO ONE IN MINUTES ... sleepers. Our split king gap filler for adjustable beds locks mattresses in place so you can enjoy uninterrupted, united sleep....
Price   US$53.99
🌐
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
Vekkia
Premium Quality Bed Bridge Pad- Sleep comfortable with the bed converter kit that consists of a 10 inch wide& 75inch long, high quality mattress bridge and storage bag with installation manual. USING WIHT ASJUSTABLE BEDS: Works only if the beds are in same or similar position. Detachable Bed Gap Filler - The cushion cover is removable with zipper design and non-pilling, as well as hand or machine washable, easy to put on and take off for change & wash. Portable, Easy Storage - Perfect for guest rooms, B&Bs, guesthouses and vacation rentals. Make a twin to king bed in minutes.
Find elsewhere
🌐
Foam Factory
foambymail.com › product › foam-bed-bridge.html
Poly Foam Bed Bridge | Foam Factory, Inc.
Purchased this bridge to fill in the gap of my split King size adjustable bed it works great stopping the draft and also allowing me to use regular deep pocket king sized sheets
🌐
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 - Use a bed bridge in the center gap to create a smooth transition between surfaces. Top everything with a single king-sized mattress topper that unifies the sleep surface. This layered approach addresses the gap problem from multiple angles for ...
🌐
Wayfair
wayfair.com › keyword.php
Split King Bed Gap Filler | Wayfair
Designed from breathable fabric and high-density foam, this Mattress pad to bridge gap spans 75 inches in length and 8 inches in width,with 2.1 inches for gap filler, ensuring a perfect connection between mattresses.
🌐
Bedbinders
bedbinders.com › home
Home - Bedbinders
May 2, 2024 - Yes, it’s very adaptable! The Bedbinder can comfortably bridge mattresses even if they differ in height, keeping them snugly together.
🌐
Saatva
saatva.com › home › 6 ways to keep a split king mattress together
How to Keep a Split King Mattress Together | Saatva
Simply move the two parts of your split king as close together as possible and place the mattress bridge between them. You’ll likely find that in addition to preventing the mattresses from moving, the mattress bridge also makes them more comfy: ...
🌐
Amazon
amazon.ca › Split-King-Gap-Filler-Spring › dp › B07L4ZTW8G
Split King Gap Filler for Box Spring Bed - Bed Bridge Wedge for King and Queen - Bed Straps for Mattress - Universal Twin to King Bed Converter Kit : Amazon.ca: Home
ENITYA Split King Gap Filler for Adjustable Bed,Bed Bridge-Twin to King Converter to King Making,Adjustable Mattress Bed Connector,for Stayover,Family Room and Vacation Rentals(75" L x 10" W)
🌐
Amazon
amazon.com › Vekkia-Bridge-Twin-King-Converter › dp › B0C819BQ9Y
Amazon.com: 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(75in×10in) : Home & Kitchen
Premium Quality Bed Bridge Pad- Sleep comfortable with the bed converter kit that consists of a 10 inch wide& 75inch long, high quality mattress bridge and storage bag with installation manual. USING WIHT ASJUSTABLE BEDS: Works only if the beds are in same or similar position. Detachable Bed Gap Filler - The cushion cover is removable with zipper design and non-pilling, as well as hand or machine washable, easy to put on and take off for change & wash. Portable, Easy Storage - Perfect for guest rooms, B&Bs, guesthouses and vacation rentals. Make a twin to king bed in minutes.
🌐
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 - Quality bedding doesn’t just feel cozier — it also lasts longer. When it comes to fitted sheets, keep an eye out for those designed specifically for split king mattresses. These promise a snug fit and less budging while you sleep. Adjustable bed frames can optimize the advantages of having a split king mattress.
🌐
Walmart
walmart.com › home
Split King Gap Filler Adjustable Bed
From $51.00Split 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) Johnear Bed Bridge Connector Twin to King Bed Converter kit - Split King Gap Filler for Adjustable Bed - Twin and Twin XL Bed Adjustable Mattress Connector for Bed to Make King - Mattress Bridge
🌐
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.
🌐
GhostBed®
ghostbed.com › pages › problems-with-split-king-adjustable-beds
4 Problems with Split Kings (& How to Solve Them) | GhostBed®
Move to the foot of the bed and pull the sheet over the bottom corners. Select the “Flat Position” button on your remote and watch as the GhostGrip elastic band helps pull everything into place. ... Crafted with breathable Supima cotton and eco-friendly TENCEL™, our split king sheet set includes everything you need for comfortable sleep. Shop Now · We understand that price is a concern for many people when buying an adjustable bed base.
🌐
Amazon
amazon.ca › Bedbinders-Connector-personal-mattresses-Mattress › dp › B07GQ4RSY5
Bedbinder Deluxe Bed Gap Filler - Seamless King-Size Conversion
EPHEDORA 3-in-1 Fitted Sheet Attached Bed Bridge Twin (XL) to King Converter Kit with Sheet Strap Set | Split King Gap Filler for Adjustable Bed | Grey198
🌐
Ergomotion
shop.ergomotion.com › home › blog › 5 problems with split king adjustable beds [& how to fix them]
5 Problems with Split King Adjustable Beds [& How to Fix Them] - Ergomotion
April 12, 2023 - For example, the ErgoSportive king-size smart bed has a LED-lit headboard (with a sunrise/sunset feature) that keeps its two sides from sliding apart. Alternatively, you could use headboard brackets to attach a headboard to your split king bed. Another solution is to try a bed bridge, which creates a bridge between the two mattresses.