FAQ: How To Fix A Sagging Mattress With Plywood?

Can plywood help a sagging mattress?

While plywood is an effective way to tackle sagging, it’s not a permanent solution. Your mattress will eventually continue to sag and your support base will no longer be effective. That’s when you need to invest in a new mattress. Another issue with plywood sheets is that they prevent the mattress from breathing.

Can I put a mattress on plywood?

Plywood ideally provides reliable support for the entire mattress. Moreover, it is also recommended to put plywood on top of any mattress foundation, especially if it has big slats/gaps to evade sagging.

How do I stop my bed from sinking in the middle?

How to Fix a Sagging Mattress

  1. Use a Mattress Topper. Purchasing a mattress topper can help you sleep more comfortably on a mattress that is sagging.
  2. Rotate the Mattress.
  3. Replace the Foundation.
  4. Use Extra Pillows.
  5. Explore Warranty Coverage.
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Can you fix a mattress that sags in the middle?

One of the most effective ways of fixing a mattress that sinks in the middle is by using plywood. All you need to do is find the right plywood, cut it into your bed’s measurements and you’ll be set. For those with box spring beds, placing plywood between the box spring and mattress is the prudent thing to do.

What can I put under my mattress to make it firmer?

A polyurethane or latex topper can also work. Pads tend to be thinner and are usually filled with polyester or other materials that may not give you the firmness that you seek. Instead of a pad, use plywood under a mattress topper to get the desired stiffness.

Is sleeping on plywood good for you?

It lets your body sink down, causing your spine to curve. This can lead to back pain. In fact, if your mattress is too soft, Harvard Medical School recommends placing plywood under your mattress.

How thick should plywood be for a bed?

Plywood thinner than 3/4 inch should not be used, as it will not be strong enough to hold the weight of a bed mattress and a person lying down. The plywood can be exactly 3/4 inch thick, but ideally, it should be thicker.

What kind of plywood do you use under a mattress?

The type of plywood is not as important as the surface. While the particleboard is not strong enough to support the weight, OSB should work fine. But it is best to use normal AB or BC softwood plywood. A smooth surface finish and rounded edges are critical to prevent snagging and damaging the mattress cover.

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How can I make my plywood mattress firmer?

Use a Plywood Board Placing a plywood board on top of your box spring or on the slats is a step towards boosting your bed’s firmness. The strong piece of plywood lying beneath your mattress makes it feel firmer. The board not only strengthens your bed but it may also keep dust and allergens at bay.

Why has my mattress got a hump in the middle?

The main reason a mattress develops a ridge is uneven weight distribution on the sleep surface. Constant weight on the same areas of the mattress causes the foam and padding of the comfort layers to compress.

Why do I roll to the middle of my bed?

A Bonnell Coil responds to your body’s mass and weight by sinking down. This causes the rest of the mattress to sag toward the middle. If one partner is heavier than the other, it is not uncommon to feel like you are being pulled toward the other partner or the middle of the mattress.

How do I keep my bed from sagging?

Fixing a Saggy Mattress

  1. Make Sure Your Mattress is Supported.
  2. Buy a Mattress Topper.
  3. Fill in the Space Between Mattress Topper and Mattress.
  4. Try the Mattress Helper.
  5. Change Where and How You Sleep.
  6. Regularly Flip & Rotate Your Mattress.
  7. Use a Mattress and Box Spring.
  8. Use a Good Foundation.

Do all mattresses sag in the middle?

Typically, a mattress will sink in the middle, often in two or three spots. This is usually caused by a few things. Couples who tend to sleep on ‘their’ sides of the bed. Or, if a couple sleeps in a ‘spooning’ position, there is often one sagging area right in the middle.

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How do you fix a dip in a mattress?


  1. Put a couple of pillows under the mattress dips.
  2. Put a sheet of plywood under the mattress.
  3. Use a mattress topper.
  4. Vacuum the mattress to redistribute the material.
  5. Rotate and flip the mattress if possible.

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