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
🌐
Quora
quora.com › How-do-you-fix-a-gap-between-a-mattress-and-a-headboard
How to fix a gap between a mattress and a headboard - Quora
Answer (1 of 5): I built my bed to Swedish measures - had lived in Sweden, moved to Britain. Found that British mattresses are shorter. Put a length of 3x2″ timber at the foot of the bed to push the mattress up. Better would have been to buy a Swedish mattress from IKEA. May do that one day, ...
🌐
Amazon
amazon.com › bed-gap-filler › s
Amazon.com: Bed Gap Filler
Check each product page for other buying options. Price and other details may vary based on product size and color · Vekkia Queen Bed Wedge Pillow for Headboard – High-Density Foam Fills Gaps (0-5.5") Between Mattress and Headboard, Wedge Pillow with Pockets for Phone & Remotes, Washable ...
🌐
Mattress Underground
forum.mattressunderground.com › mattress talk › general mattresses questions
Twin to TwinXL - can it be done? - General Mattresses Questions - Mattress Underground
July 12, 2014 - I’m currently wracking my brain to figure out how to extend a twin size mattress to a twin XL, short of cramming junk in the gap - which is not beyond me at this point 🙂 What would the best approach to such a thing? Order a chunk of latex as gap filler? or literally fill with pillows?
🌐
Reddit
reddit.com › r/daddit › dad's how would you fill these gaps
r/daddit on Reddit: Dad's how would you fill these gaps
March 15, 2025 -

Been changing around my daughter's room and we moved her bed over to a wall now and we are finding these gaps both between the mattress and wall, as well as the mattress and the footboard of the frame.

How would you guys see about filling these gaps to make sure your daughter's stuff doesn't fall down? Mine and my wife's first thought was pool noodles, but I told her I would reach out to the daddit brain trust

🌐
eBay
ebay.com › home & garden › bedding › bedding accessories
Bed Bridge Bedbinders | Bed Gap Filler and Mattress Gap Filler – Twin to King for sale online | eBay
Bed Bridge Bedbinders | Bed Gap Filler and Mattress Gap Filler – Twin to King
The Bed Bridge Bedbinders are versatile accessories designed to fill the gaps between twin and king size beds, providing stability and comfort. Made from 100% soft spunbond material in a sleek white color, these bed gap fillers are 102 inches long and 24 inches wide, suitable for all bed sizes.
Price   $40.00
Find elsewhere
🌐
Wayfair
wayfair.com › keyword.php
Twin Bed Gap Filler | Wayfair
It gives me the option of having a king bed or two twin XL beds!. Anonymous. Thu Dec 11 2025 ... The search is over! The Alwyn Home bed rest reading gap wedge headboard pillow enhances your sleep.
🌐
Mattress Underground
forum.mattressunderground.com › mattress talk › general mattresses questions
Twin XL "SPLIT KING" Gap issue. How to solve? - General Mattresses Questions - Mattress Underground
May 21, 2013 - Any recommendations on how to solve this center gap issue? We haven’t decided on a bed frame yet, so perhaps that’s a part of the issue. But we are using 2 raze adjustable beds with the wheels locked. But still the beds part in the middle after our 60 pound boxer lays in the “void” i have read on amazon about the “create a king” but it doesn’t have great reviews and seems cheap.
🌐
Reddit
reddit.com › r/diy › how should i fill this large gap between my bed and the wall?
r/DIY on Reddit: How should I fill this large gap between my bed and the wall?
May 14, 2025 -

My new apartment has a Murphy bed, which means there is a nearly foot long gap between the bed frame and the wall, where the bed is meant to be stored. Unfortunately this makes it very difficult to do things like read or watch TV while laying in bed.

This is not a new problem. There is this similar post on reddit that recommends placing a board along the L brackets and screwing it in. While I do already have these L brackets and this solves the problem of pillows falling in the gap, I expect it wouldn't be comfortable to lay on for reading and it makes it so I would have to unscrew and remove the board whenever I do want to actually fold the bed up into the wall.

An improvement on this option is to buy a bunch of bed wedges to stuff in the gap, probably by placing on top of the board. This worked for at least one person but I'm worried that my gap is too large for these products to work.

This solution fully fills the gap but makes significant modifications to the wall space, which I'm not sure my landlord would allow. And again, it runs into the issue of having to be taken apart to fold the bed up.

Solutions on other websites (other than this awesome one) are usually dealing with much smaller gaps where things like "stuff it with a body pillow" is sufficient. This one seems decent.

Finally, most products on Amazon made for this purpose do not go up to 11-12 inches or would be very expensive to buy enough copies to totally fill the gap.

So I've come here. r/DIY, how would you solve this problem?

Gap dimensions:

11.25 inches between wall and frame.

22 inches between ground and top of frame.

63.5 inches long.

🌐
Bed Bath & Beyond
bedbathandbeyond.com › Bedding-Bath › Bed-Gap-Filler-Headboard-Wedge-Pillow-Twin-Headboard-Wedge-Pillow-39 › 40260266 › product.html
Bed Gap Filler Headboard Wedge Pillow Twin ...
Let BedBathandBeyond.com help you discover designer brands & home goods at the lowest prices online. With free shipping on orders over $49.99*. See for yourself why shoppers love our selection & award-winning customer service.
🌐
Puffy
puffy.com › blog › lux comfort › diy mattress gap filler
🛠️ DIY Mattress Gap Filler: Official Guide to Easy Fixes
November 21, 2023 - Angled Design: Wedge-shaped fillers fit snugly into gaps, providing a smooth transition between surfaces. Versatility: Suitable for different bed sizes and gap widths.
🌐
Pinterest
pinterest.com › explore › home decor › room decor › bedroom › bed and wall gap filler
Bed and Wall Gap Filler
Bed Gap Filler, Mattress Extender for Full/Twin/Queen/Cal King/King Bed, Headboard Pillow Between Headboard and Mattress or Wall, High-Density Sponge with Removable Cover(Charcoal Grey76*2*6in)
🌐
Walmart
walmart.com › home
Explore Comfortable Bed Gap Fillers and Wedge Pillows for Your Bedroom
Kolbs Bed Gap Filler, Headboard Pillow, Modern Stylish bed wedge pillow for headboard, Twin Size, Queen Size
🌐
Target
target.com › s › bed+filler
Bed Gap Fillers & Side Pockets
Shop Target for bed filler you will love at great low prices. Choose from Same Day Delivery, Drive Up or Order Pickup plus free shipping on orders $35+.
🌐
Amazon
amazon.com › ask › questions › Tx13H5K5F1NUWS1
Amazon.com: Customer Questions & Answers
FeelAtHome Twin to King Bed Converter kit (8" Class) - Bed Bridge - Split King Gap Filler for… · Q: Does it work for an adjustable bed? asked on March 3, 2019 · Showing 1-7 of 7 answers · It was fairly easy to connect and so far it’s working.
🌐
TikTok
tiktok.com › raz (@razputyouon) | tiktok › fill your gap asap before you lose something important! #bedwedgepillow #gapfiller #bedroomhacks #mattress #bedgapfiller #tiktokshop #tiktokmademebuyit #tiktokshopfinds
Essential Bed Gap Fillers for a Comfortable Sleep
541.7K Likes, 1747 Comments. TikTok video from raz (@razputyouon): “fill your gap ASAP before you lose something important! #bedwedgepillow #gapfiller #bedroomhacks #mattress #bedgapfiller #TikTokShop #tiktokmademebuyit #tiktokshopfinds”. POV: mfs with a bed gap when trying to do ...
🌐
Pinterest
pinterest.com › explore › diy and crafts › diy decorations for home › bed gap filler diy
Bed Gap Filler Diy
Mattress Filler Pillow Bed Headboard Gap Filler, Long 40 54 58 70 78 Inch Mattress Extender for King Size Bed/Twin to Full Queen/Wall, Sponges Pillow Stopper Wedge Grey Cover Washable
🌐
TikTok
tiktok.com › discover › how-to-stop-my-layered-mattress-from-sliding-off-boxspring
TikTok - Make Your Day
TikTok - trends start here. On a device or on the web, viewers can watch and discover millions of personalized short videos. Download the app to get started.