You push two beds together, get under the covers, and within minutes one of you is stuck in the gap. Sound familiar? You are not alone. Millions of couples deal with this problem every night. The good news is that it is easy to fix.
In this guide, we will walk you through the best ways to fix the gap between two mattresses. We will cover quick fixes, long-term solutions, and the one product that over 15,000 couples already trust.
Why Does a Gap Form Between Two Mattresses?
When you place two single beds side by side, they never stay perfectly together. The mattresses are separate objects. They shift when you move in your sleep. Sheets pull them apart. And gravity does the rest.
Over the course of a single night, even a small gap can grow to several centimeters. That is enough to create an uncomfortable dip right in the middle of the bed. You end up rolling toward it, and your sleep suffers.
The gap happens because of three things:
- The bed frames are not locked together, so they slide apart
- The mattresses have smooth edges that do not grip each other
- Body weight and movement push the mattresses outward during sleep
Common Ways to Fix the Gap
People have tried all kinds of things to fix the gap between two mattresses. Some work. Most do not. Here is a breakdown of the most popular methods.
1. Use a foam wedge or gap filler
Foam wedges are cheap strips of foam that you push into the crack between the mattresses. They fill the gap, but they come with problems. Foam compresses over time and loses its shape. After a few weeks, the wedge sinks and you can feel a dip where it sits. It also does nothing to stop the beds from sliding apart.
2. Strap the bed frames together
Some people use ratchet straps or bungee cords to hold the bed frames together. This can stop the frames from drifting, but it does not fix the gap between the mattresses themselves. The mattresses can still shift on top of the frames. It also looks messy and can scratch the frame.
3. Use a king-size fitted sheet
Putting one large fitted sheet over both mattresses can help hold them together. But a sheet alone is not strong enough. The mattresses still drift during the night, and the sheet bunches up in the gap. By morning, you are back to the same problem.
4. Use a bed bridge (the best solution)
A bed bridge is the most effective way to fix the gap between two mattresses. It is a flat connector strip that sits on top of the gap. The underside has a non-slip layer that grips both mattresses at once. This does two things: it fills the gap completely, and it locks the mattresses in place so they cannot slide apart.
Unlike foam wedges, a bed bridge does not compress or sag. Unlike straps, it works on the mattresses directly. And unlike a sheet alone, it actually holds everything together. You can read more about how bed bridges work on our main bed bridge page.
Why a Bed Bridge Is the Best Fix
A bed bridge solves the gap problem in one step. You place it between the mattresses, put a sheet over the whole bed, and you are done. There is nothing to inflate, no straps to tighten, and no foam that wears out.
Here is what makes a bed bridge better than the other options:
- Creates a flat, seamless surface with no bump or dip
- Anti-slip underside stops mattresses from drifting apart
- Works with any mattress size, type, or firmness
- Each person keeps their own mattress and comfort level
- Lasts for years without losing its shape or grip
The Bedbinder Deluxe is the top-rated bed bridge in Europe. Over 15,000 couples use it every night. It fits all standard mattress sizes, takes two minutes to set up, and comes with a 30-day money-back guarantee.
Want to see how easy it is to set one up? Read our step-by-step guide on how to install a bed bridge.
Stop the Gap Tonight
You do not need to keep falling into the crack between your mattresses. A bed bridge is the simplest, most reliable fix. It takes two minutes, costs less than a dinner out, and lasts for years.
Over 15,000 couples have already made the switch. Tonight could be your first night without the gap.
Shop the Bedbinder