Why Mattress Doesn’t Fit Bed Frame? The Ultimate Solutions!

So you’ve purchased a mattress but it doesn’t fit your bed frame? It’s indeed a big problem because now you’re stuck with your mattress.

So, why the mattress doesn’t fit bed frame? The mattress couldn’t fit in the bed for many reasons. Perhaps you got the measurement wrong. Or the mattress is perfect in length but not in width. Whatever the case is, if the mattress doesn’t fit the bed frame, it’s a big issue.

mattress doesn’t fit bed frame

Well, what can you do about it?

If the mattress is short, you can try to fix the gap between it and the bed frame. Moreover, you can also apply some easy fixes that’ll be shown in this article.

Besides, you can use a mattress extender to fix this issue as well. You’re in luck as we’ve covered everything you need to know in this article. Furthermore, we’ve tried to show you how you can build a mattress extender too.

So, let’s get right into it, shall we?

Contents

Basic Info 101:

How To Put Mattress On Bed Frame?

For sleeping peacefully and maintaining the aesthetic of your room, it’s important to put a suitable mattress on your bed frame. If you’re wondering how to do so, keep on reading below:

How to put mattress on bed frame? First measure your bed frame and find a suitable mattress for it. If you don’t own a bed frame, then find one that fits your requirement along with the measurement of your mattress. Finally, put the mattress on the bed frame.

how to put mattress on bed frame

Let’s get know about the process step by step down below:

Step 1. Measure The Bed Frame:

Before buying a mattress, measure your bed frame so that it can adjust with the mattress.

Step 2. Measure The Mattress:

Measure the mattress that can fit in your bed frame.

Step 3. Mattress Foundation:

Make sure your mattress or bed frame has a strong mattress foundation.

Step 4. Placement:

Place the mattress of your choice on the perfect sized bed frame with a mattress foundation.

The 5 Best Mattress and Frame Products

If you’re planning to buy a mattress and bed frame but clueless about which one’s wise to purchase, you’ve got your back. Here we’ve brought to you all the things you need to know about top FIVE best mattress and frame products worth trying:

best mattress and bed frame

1. ZINUS SmartBase 14 Inch Metal Platform Bed Fram – Best Bed Frame for Foam Mattress

If you’re looking for a Queen-sized bed frame, then ZINUS SmartBase Zero Assembly Mattress Foundation is the perfect product for you. Made of steel, this bed frame is black in color, which is perfect for adding that classy aesthetic look to your room.

ZINUS SmartBase Zero Assembly Mattress Foundation comes as a one-and-done solution. Because you don’t need to buy an extra box spring for your mattress if you buy this frame! It has heavy steel platform, can support a maximum weight capacity of 750 pounds, and can be assembled without any tools. That’s why we like to call this the best bed frame for foam mattress.

Without further ado, let’s dive into the pros and cons of this product.

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Pros
  • Requires no tool for assembling.
  • Comes with a warranty of 5 years.
  • Budget-friendly.
  • Legs come with plastic caps to protect the floor.
Cons
  • Might not withstand weight over 500 pounds.
  • Might have rough metal spots.

The best recommended mattress that fits perfectly in this bed frame is- 

1. Cool Gel Memory Foam 14-Inch Mattress – Best Foam Mattress

Who doesn’t want a mattress that provides both support and comfort? If you’re confused which product meets these criteria, then worry no more. Because Classic Brands Cool Gel Memory Foam 14-Inch Mattress with 2 BONUS Pillows is exactly that mattress you’re looking for.

Classic Brands Cool Gel Memory Foam 14-Inch Mattress comes with 2 bonus pillows. It’s made with high-quality memory foam and cool gel. Besides, it’s very adjustable. Thus, it’s safe to say that this product is one of the best foam mattresses you can buy.

So, you don’t have any idea about it’s pros, cons? Well, that’s what we’re going to talk about. Ok, without further ado, let’s dive in.

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Pros
  • Comes with 2 free pillows.
  • Budget-friendly.
  • Very adjustable and comfortable.
  • Comes with a warranty of 10 years.
Cons
  • Might be firm for some users.

2. Lucid L300 – Best Bed Frame for Adjustable Base

Looking for a good bed frame for an adjustable base? Then, you might want to know about Lucid L300 Adjustable Bed Base.

Lucid L300 Adjustable Bed Base comes with folding hinges and weight capacity of 750 pounds. Its reliable and responsive qualities make it the best bed frame for an adjustable base.

Let’s know about its pros and cons.

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Pros
  • Easy to assemble.
  • The color adds an aesthetic look.
  • Fast to charge.
  • Comes with wireless remote and programmable memory option for favorite positions.
Cons
  • The product is quite heavy and requires strong people to shift it.

The following mattress is the best recommended product with the aforementioned bed frame- 

2. Blissful Nights 12 Inch – Best Mattress for Adjustable Base

Blissful Nights 12 Inch Twin XL Copper Infused Cool Memory Foam Mattress is the perfect mattress you can have for your adjustable base. To know more about this product, keep on reading below:

Blissful Nights 12 Inch Twin XL Copper Infused Cool Memory Foam Mattress comes with perfect consistency for a mattress and has option for pressure relief. It has copper infused and is extremely comfortable. That’s why we like to call it the best mattress for an adjustable bed frame.

If you’re planning to buy the mattress, keep on reading below to know about its pros and cons.

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Pros
  • Comes with a warranty of 10 years.
  • Comes with a removable and washable cover.
  • Safe and comfortable for everyone.
  • The air channel base and articulating groves help to regulate temperature for your comfort.
Cons
  • The foam might start dipping heavily while sleeping after some years.

3. ZINUS SmartBase 14 Inch Metal Bed Frame – Best Bed Frame for Heavy People

If you’re looking for a sturdy bed-frame that can withstand a lot of weights, then ZINUS SmartBase Super Heavy Duty Mattress Foundation with 4400lbs Weight Capacity is the perfect product for you.

ZINUS SmartBase Super Heavy Duty Mattress Foundation comes with 4400 lbs. weight Capacity. It’s great for plus-sized people and co-sleeping. With a sturdy steel platform, it’s safe to call it the best bed frame for heavy people.

Let’s know about the pros and cons of this amazing product.

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Pros
  • Tool-free assembly.
  • Can support a maximum weight of 4400 lbs.
  • Strong and durable.
  • Comes with a warranty of 5 years.
Cons
  • Might make a squeaky sound.

The best recommended mattress with this bed frame is discussed below- 

3. Ssecretland 14 Inch – Best Mattress for Heavy People

If you’re looking for a queen-sized mattress, then Ssecretland 14 inch Individually Wrapped Coils Innerspring Mattress is the perfect product for you. Let’s know more about it.

Ssecretland 14 inch Individually Wrapped Coils Innerspring Mattress is a comfortable product which is made of high-quality elements. It can fit queen-sized beds and withstand heavy weights. That is why we like to call it the best mattress for heavy people.

So, if you’re planning to buy this product, you might want to know about its pros and cons. For that, keep on reading below.

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Pros
  • Comfortable.
  • Firm.
  • Comes with a warranty of 10 years.
  • Supports the body properly.

Cons
  • Might not be firm enough for some consumers.

4. Mellow’s Modernista 10 Inch Bed Frame – Best Bed Frame for Back Pain

If you’re looking for a bed frame that can support your mattress for easing back pain, then Mellow’s Modernista Low Profile 10-Inch Metal Platform Bed Frame with Classic Wooden Slat Support Mattress Foundation is the perfect product for you.

Mellow’s Modernista Low Profile 10-Inch Metal Platform Bed Frame comes with Classic Wooden Slat Support Mattress Foundation. Its versatile quality of being suitable for all types of mattresses makes it the best bed frame for back pain.

Now you might want to know about its pros and cons. So, without further ado, let’s know about those.

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Pros
  • Easy to assemble.
  • Supports all types of mattresses.
  • Strong and durable.
  • Comes with a warranty of 5 years.
Cons
  • Heavy to carry.

The best recommended mattress that fits this bed frame is discussed below- 

4. Kescas 10 Inch Memory Foam – Best Mattress for Back Pain

Kescas queen mattress is the product worth trying if you want to ease your back pain. It’s comfortable and affordable as a mattress of great quality.

The Kescas queen mattress has an orthopedic design which provides an even balance support of the head, shoulder, waist, and legs. That is why we like to call it the best mattress for back pain.

If you’re planning to buy this product, you might want to know about its pros and cons. So, without further ado, let’s dive in.

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Pros
  • Can regulate sleeping climate.
  • Doesn’t make noise.
  • Comfortable.
  • Long-lasting.
Cons
  • Might not be firm in some cases.

5. Kefair 12 Inch Frame – Best Bed Frame for Full Size Bed

Looking for the best bed frame for dull size bed? Worry no more, because you’ve brought to you all the things you need to know about such a product. That product is Kefair 12 Inch Full Size Bed Frame.

Kefair 12 Inch Full Size Bed Frame is sturdy and has a decent amount of space between its bottom and the ground. Besides, your mattress will fit perfectly on it. These are the reasons why we like to call it the best bed frame for a full size bed.

Let’s know about the product’s pros and cons.

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Pros
  • Sturdy and durable.
  • Doesn’t make noise.
  • Comes with a lot of space.
  • Easy to assemble.
Cons
  • The metal might not be strong enough for some consumers.

The best recommended mattress suitable for this bed frame is discussed below- 

5. Full Gel 12 Inch Full Memory Foam Mattress – Best Mattress for Full Size Bed

Live and Sleep Full Gel Memory Foam Mattress is the best mattress anyone can have for their full sized bed. If you’re looking for such a product, then keep on reading about this mattress worth trying.

Live and Sleep Full Gel Memory Foam Mattress supports your body perfectly. Its memory foam helps to make a cool sleeping surface. Thus, we like to call it the best mattress for a full size bed.

If you’re planning to purchase this mattress, you might want to know about its pros and cons. So, without further ado, let’s get to know about them.

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Pros
  • Budget-friendly.
  • Comfortable.
  • Very adjustable.
Cons
  • The foam might get compressed.

The Problems:-

There are two types of problems that may arise when your mattress doesn’t fit the frame of the bed. One of them is that the mattress is too small and the other is that the mattress is too large.

1. Problems When The Mattress Is Too Small:

So, if you’ve purchased a small mattress than the bed frame, it’ll show the following problems:

(i) Gaps On The Bed

Well, it’s a no-brainer that your bed will have gaps at the front and the back when you’ll have a small mattress. Moreover, the gaps won’t look pleasant and you’ll be left with no choice than hiding it.

 (ii) Discomfort

Normally when gaps occur in the bed due to the small mattresses, people try to hide it with pillows. Also, people use blankets over the areas that have a gap.

As a result, these areas don’t look and feel pleasing at all. And, if you’re trying to sleep in those areas, you won’t feel comfortable at all.

(iii) Risk Of Any Injury

At times, if you have a toddler or pet roaming around the house then they can get injured in the bed. The beds that have gaps in them due to the small mattress are often vulnerable to many injuries.

But, how may you ask?

Well, your toddlers or pets can get hurt while climbing on the bed. Hence, it’s not so ideal to have gaps in your bed, is it?

2. Problems When The Mattress Is Too Big

At times, you’ve provided the right measurement but the company has still sent a big mattress. Let’s see what problems large or big mattresses cause:

(i) Unwanted Fit

At times, people force the mattresses into their bed frame. As a result, it doesn’t look good and the bed looks unorganized.

By forcing the mattresses on the bed frame, they feel uncomfortable at the time of sleeping.

(ii) Health Problems

Yes, you heard me right. Haven’t you heard that good sleep contributes to good health? Well, if you’re not able to sleep properly, it’ll affect your health.

Moreover, long mattresses can cause different health problems. Amongst these health problems back pain, rib pain, and many more happen really often. It can also disrupt sleep and that’ll cause you to feel tired the following day.

(iii) Unorganized Look for The Room

Whenever people purchase a mattress, they try to match it with their décor. In fact, a mattress can enhance the décor of your room as well. But, if your mattress sizes don’t match, they’ll hang to the sides.

As a result, it’ll give off an unorganized look for the room. Hence, it’s essential that you fix the issue.

The Fixes:-

Yes, we’ll go straight into the fixes without wasting any of your time. But, before compiling the fixes for this problem, we need you to know some things.

There are different approaches to fixing this problem. Either you can use some tricks to compensate for this problem or you can replace the mattress.

Most of the time, replacing or returning a mattress isn’t the ideal option. This is mainly because it’ll cost you extra money. And if you just purchased the mattress, it’ll add up even more.

So, it’s not an ideal situation to be in, is it? But don’t worry, we’ve got your back. Let’s look at some of the things at, These guides can do to fix this issue.

Method 1: Fill Gap Between Mattress and Bed Frame

It’s really uncomfortable to sleep on a mattress which doesn’t fit perfectly on your bed frame. Your head or pillows sleeping through the gap between mattress and bed can hamper your sleep. So, it needs to fixed as soon as possible,

How to feel gap between mattress and bed frame? You can fill the gap between mattress and bed by adjusting the headboard if possible. You can also use large decorative pillows to fill the gaps or buy a suitable gap filler.

how to feel gap between mattress and bed frame

Let’s know the ways of filling this gap step by step down below:

Step 1. Adjust Headboard:

If your bed frame comes with an adjustable headboard, lower it according to your preference.

Step 2. Use Pillows:

For filling such gaps, place large or decorative pillows against the headboard if your bed is big enough.

Step 3. Get a Gap Filler:

Buy yourself a gap filler of your preference like pillow stops or wood boards. Then use those as per instructions.

Method 2: Fixing The Gaps (DIY Method)

It’s essential that you fix the gaps in your bed. Every year a lot of kids and adults get minor injuries from these gaps. Hence, you’ll need to work on those. Well, it’s easy and it shouldn’t take much time. Let’s go:

Tools

Let’s look at the tools for the job:

  • Drill
  • 2-3 inch thick boards
  • Screw
  • Foam

Step 1: Check The Mattress

Firstly, check the mattress of your bed. If the mattress has any mismatches in the size, they’ll have a gap. Mainly, the mismatch in size causes gaps to occur so keep that in mind when ordering a mattress.

How should a mattress fit on a bed frame?

A mattress should be of an exact fit in your bed frame. This means that it shouldn’t be large or small. It’ll have no gaps and the mattress should never hang off the sides of the bed as well.

Step 2: Block Any Gap

If you don’t want to buy a new mattress for yourself, you can block the gaps or try to fill them.

But, how to fill gap between mattress and bed frame?

Screw-in 2-3 inch thick boards in the headboard at the top of the mattress. This will fill in much space for you. However, the number of boards that you build will depend on how big of a gap you have in your bed.

On the other hand, you can push the mattress to the top and install gap boards on the footboard as well. Whatever the case is, just try to fill in the gaps without using any pillows.

Step 3: Add Padding In The Headboard

If you want to fix the gaps in the bed but also try to enhance the décor of your room, try padding. What I mean is, add padding in the front of the headboard.

But, how will you add padding?

Well, add in the padding in the form of foams. As a result, the gaps will fill easily. Moreover, this will also keep the pillows from not moving. Furthermore, it’ll provide a new life to the old headboard.

However, make sure that your children or others are aware of the gap in that place. This is because you’re not hiding the gap in the place and filling the gap. If someone steps or falls on that place, they can hurt themselves in the process.

Step 4: Remove The Headboard

Remove the headboard if the mattress doesn’t fit properly. Hence, you’ll be able to increase the space in your bed frame. So, tossing the headboard will mean that you’re increasing the space in your bed frame.

Also, after removing the headboard, push the bed to the wall. If you want, you can even install a folding screen as a replacement for the headboard.

Method 3: Buy Mattress Extender Products

If you’ve decided that you’re going to buy mattress extender products, you might wonder about the details. For that, we’ve brought to you all things you need to know about the top 04 products worth trying:

best mattress extender

1. Lumex Foam Mattress Extender, 4x35x6

If you’re looking for a mattress extender of 4 inches, then Lumex Foam Mattress Extender is the perfect product for you. It’s made of foam and durable.

Lumex Foam Mattress Extender is a product that is used to fill the gap between the bed frame and mattress with a foam of 4 inches. It’s durable, hazzard-free, and easy to clean.

Let’s get to know about its pros and cons down below.

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Pros
  • Bacteria and fluid-resistant.
  • Flame-retardant.
  • Good quality.
  • Suitable for hospital and adjustable beds.
Cons
  • Might be small for some consumers.

2. Mattress Extender 6″x36″x6

If you’re looking for a thick mattress extender but don’t know which one to get, worry no more. We’ve brought to you all the things you need to know about such a product, and that is Mattress Extender 6″x36″x6″.

Mattress Extender 6″x36″x6 is a product which is effective for keeping the mattress from falling down the bed. It’s dense enough to fill the gap between your mattress and bed frame.

Now you might be wondering about its pros and cons. Then, without further ado, let’s dive in.

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Pros
  • Budget-friendly.
  • Perfectly dense.
  • Adjusts with hospital and college beds.
  • Long-lasting.
Cons
  • Might not be thick enough for some users.

3. Invacare 8″ Mattress Extension

Invacare 8″ Mattress Extension is a mattress extension absolutely suitable for tall people. So, if you’re planning to buy it, keep on reading below.

Invacare 8″ Mattress Extension is perfect for tall people. This extension can also be extended up to an additional 8 inches.

If you want to know about the pros and cons, keep on reading below.

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Pros
  • Budget-friendly.
  • Durable.
  • Fit for hospital beds.
  • Good quality.
Cons
  • Might be too tall for some consumers.

4. Twin Bed Connector King Maker  Mattress Extender

If you’re looking for a mattress extension for your king-sized bed, then Twin Bed Connector King Maker Mattress Extender is the perfect product for you. Get to know more about this product down below if you plan to purchase it.

Twin Bed Connector King Maker Mattress Extender can be used to connect two mattresses as well as can be used to fill gaps between the bed frame and mattress. This product can give you the perfect level of firmness.

If you’re wondering about its pros and cons, worry no more. We’re now going to talk about those. So, keep on reading below.

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Pros
  • Easy to assemble.
  • Perfect for large beds.
  • Perfect for connecting mattresses.
  • Budget-friendly.
Cons
  • Might not stay put for some users.

Method 4: Creating A Mattress Extender (DIY Method)

So, what’s a mattress extender? Well, a mattress extender can make mattress wider. You can use it for your bed frame if the mattress doesn’t fit properly in it.

Also, you can purchase this online. But, it’ll add up to the cost of the mattress as well. And, if you’ve just bought the mattress, you won’t want to spend some more money behind an extender.

Don’t worry, we’ve got your back. We’ll help you create a mattress extender with the steps below. In fact, the process is really easy and isn’t time-consuming at all. If you can follow all of them correctly, you’ll get it done. Let’s begin:

Tools

Yes, you’ll need a set of tools for the job. Let’s take a look:

  • Old Mattress
  • Cotton/Vinyl cover
  • Measuring tape
  • Notebook
  • Wood
  • Electric Knife

Step 1: Measure The Excess Sides

Firstly, measure all the sides that are hanging on the sides. Take your measuring tape and note those down in a notebook. The excess measurement will show how much longer the mattress extender needs to be.

You’ll need to hold a block of wood at the back of the bed frame to take dimensions. But, what does a cord of wood look like?

Well, a cord of wood is a stack of wood that is 4 feet tall. But, in this case, a block of wood will do just fine.

Step 2: Cut The Mattress & Sew It Together

Cut the old mattress with the correct measurements. Use an electric knife for this tool. After you cut the block, cover the place with a cotton cloth. In the end, you can also seal the cloth together with the mattress extender.

Why Does Mattress Get Delivered Short?

Well, you’ve informed the manufacturers about the correct measurements. Then why did they provide short mattresses?

As this is a common problem throughout the world, we tried to share some factors that could happen. Here are the causes that could happen:

  • The size that was provided wasn’t feasible when the prototype finished. As a result, the manufacturers failed to provide the exact measurements.
  • Manufacturers try to avoid shipping larger products and they reduce the measurements accordingly.
  • Manufacturers try to keep their boxes small and reduce the size of mattresses.
  • Many people mess up the mattress size chart and order the wrong size.

Wrapping Up

That’s all we have for you. Hopefully, we cleared why the mattress doesn’t fit bed frame.

In the end, we’d like to say that always check the mattress size comparison before ordering one.

And if you don’t get the right size of the mattress, follow our fixes in this article. Good Luck.