How do you keep a mattress
from sliding?
Two very different problems get the same name. One needs grip. The other needs connecting. Find out which one is yours.
How do you keep a mattress from sliding?
If your mattress keeps sliding, start by working out which of two problems you have, because the fixes are opposites:
- One mattress slipping on its base is a grip problem. Add friction underneath: a non-slip pad, rubber shelf liner, or retainer bars at the foot end.
- Two mattresses drifting apart is a connection problem. Grip will not hold them, because nothing joins one mattress to the other. They have to be strapped together.
The Bedbinder solves the second one. If yours is the first, the fixes further down cost a few dollars, and we do not sell any of them.
Why does a mattress slide in the first place?
Nothing bolts a mattress down. It stays put on friction and its own weight, and modern beds give it very little of the first.
A mattress that travels toward the foot of the bed also opens a space at the top, which is why a headboard gap so often turns out to be the same problem seen from the other end.
- Metal frames, painted slats and platform beds have smooth surfaces. There is almost nothing for the mattress to hold on to.
- Every time you get in, turn over or sit on the edge, you push the mattress sideways a fraction.
- Nothing pushes it back. Those fractions add up, so by the weekend it has visibly moved.
- Foam and latex mattresses are lighter than old spring ones, so there is less weight holding them down.
That is why straightening it up never lasts. The cause is still there when you get into bed that night.
Which of the two problems do you have?
Knowing how to keep a mattress from sliding starts here. Look at your bed in the morning, before you straighten anything. What you see tells you which fix to buy.
The mattress has crept down or off the frame
One mattress, sitting crooked, usually shifted toward the foot end or hanging over one side. You may see bare slats or frame at the top. This is a grip problem, and the section below is for you.
A gap has opened down the middle
Two mattresses, most often a split king or two twins pushed together, with a seam that gets wider. Customers call it the canyon, the crack, the gap. This is a connection problem, and grip will not fix it.
Not sure? The test is whether there is one mattress or two. Grip holds a mattress to the bed. It does nothing to hold a mattress to another mattress.
One mattress slipping on its base
This is the cheap problem to solve, and none of the answers are ours.
The two products people reach for here have their own pages: non-slip mattress pads and retainer bars, with what each costs and where it stops working.
What works
- A non-slip pad or rubber shelf liner. Lay it between the mattress and the base. It is the first thing to try on a metal frame, slats or a box spring, and usually the last thing you need.
- Retainer bars or brackets at the foot end. The standard fix on an adjustable base, and worth it if your frame has no rail down there.
- Check the frame itself. A bent slat, a missing centre support or a frame that is wider than the mattress lets it walk. Fixing that can be the whole answer.
- Velcro strips hold on a fabric-covered base. They peel off painted slats within weeks, so treat them as a temporary fix.
What does not work
- Pushing it straight every morning. You already know how long that lasts.
- An old sheet or towel underneath. The fabric slides on the frame just as easily as the mattress did.
If this is your problem, buy the pad and stop reading. We would rather you fixed it for the price of a coffee than bought something you do not need.
Two mattresses drifting apart
Here the grip fixes run out, because the mattresses are not sliding off the bed. They are sliding away from each other.
What people try first, and why it gives way
- Pushing them back together. Holds until someone gets into bed.
- A foam wedge. It fills the gap without joining anything. One customer who tried one first put it plainly: it kept slipping down into the gap.
- Frame connector brackets. They bolt the two frames together. The mattresses on top still drift, and the gap opens right above the bracket.
- Non-slip pads. More grip on the base does not stop two mattresses parting in the middle.
What holds
- One wide strap running under both mattresses, pulled snug, so they behave as a single surface. With no seam free to open, there is no gap to come back to.
That kind of product is called a mattress connector, and they are not all built the same. That is what the Bedbinder Deluxe does. An 80 cm band, three buckles, pulled snug rather than tight. Under a mattress pad or fitted sheet you do not notice it is there.
The honest limit: it fits beds where only the head end adjusts. If the head and the foot of each side both move, it is not the right fit. A narrower 60 cm version exists for that setup, but it is not in our own shop, so get in touch and we will point you the right way.
Want to see what connecting two mattresses looks like?
Lay it across the middle, pull the straps underneath, click the buckles. About 60 seconds, no tools.
9.3/10 · more than 250,000 sold
What happened to the people whose mattresses kept moving
Three American customers, all with two mattresses that would not stay together.
It's great!
“I was tired of my split king mattress constantly sliding apart creating a canyon between the two mattresses. This has done the trick and i don't even feel it at night.”
About time.
“We had trouble keeping the mattress from moving, and the other products like this wrapped around the edge of the bed, so whenever my wife lifted her side it would come off. This is in the middle and wraps under the bed.”
Best solution we've found.
“This is absolutely the best way to keep your split mattresses from slowly moving apart. Doesn't interfere with being able to independently raise or lower the head or feet of either mattress.”
Questions people ask about a sliding mattress
Including the ones where the answer is not our product.
How do you keep a mattress from sliding?
It depends which problem you have. One mattress slipping on its base is a grip problem, so add friction underneath with a non-slip pad, a rubber shelf liner or retainer bars. Two mattresses drifting apart is a connection problem, and grip cannot fix it. Those need to be strapped to each other.
What can I put under a mattress to stop it sliding?
A non-slip mattress pad or a roll of rubber shelf liner, laid between the mattress and the base. It costs a few dollars and it is the right first thing to try on a metal frame, a box spring or slats. A towel or an old sheet does not work, because the fabric slides too.
How do I stop a mattress sliding on a metal bed frame?
Metal frames are smooth and painted, so there is almost nothing for the mattress to hold on to. Rubber shelf liner over the full frame gives the most grip for the least money. If the frame has no rail at the foot end, retainer bars or brackets stop the mattress walking off the bottom.
Do mattress retainer bars work?
Yes, for one mattress that creeps toward the foot of the bed, and they are the usual fix on an adjustable base. They do not help with two mattresses opening a gap in the middle, because a bar at the foot end does not hold the two mattresses to each other.
Why do my two mattresses keep sliding apart?
Because nothing connects them. Two mattresses sit next to each other with a seam down the middle, and every time you get in or turn over you push them a little further apart. Nothing pulls them back, so the gap grows night after night.
Does a foam wedge stop mattresses sliding apart?
No. A wedge fills the gap, it does not connect the mattresses. Customers who tried one tell us the same thing: it slips down into the gap and the mattresses keep moving underneath it.
How do you keep a mattress topper from sliding?
A topper slides for the same reason a mattress does, so a non-slip pad underneath or a deep fitted sheet over the top usually settles it. On two mattresses there is a second cause: the topper is being pulled into the seam. Close the seam and the topper stops sliding into it.
Will I feel the strap under the mattress?
Under a mattress pad or a fitted sheet, customers describe it as something you do not notice. Without a layer over the top you may feel the strap slightly.
How long does it take to fit?
About 60 seconds. Lay it across the middle of the bed, pull the straps under both mattresses, and click the buckles until it sits snug. No tools.
If yours is the two-mattress problem
Three guides that go further than this one.
Keeping a split king together
The same problem on a split king, and what to do about the seam that keeps reopening.
Read moreAdjustable beds and the gap
Wedges, toppers and connectors compared for adjustable setups, with the limits spelled out.
Read moreFitting one in 60 seconds
The whole install on video, and the same three steps in photos.
Read more
How many more mornings do you want to start by straightening the bed?
If your two mattresses will not stay together, this is the fix. Fitted in 60 seconds, no tools.
Not happy after 90 nights? Full refund, no questions asked.