What Size Mattress Fits A Trundle Bed? Best Guide

If one asks what size mattress fits a trundle bed, you can guide them to twin-size beds. Unlike bunk beds, trundle beds will not be bigger than a twin. Sometimes, the trundle may even be too small to accommodate any standard-size mattress. 

However, there are many advantages of getting a trundle bed. For one, it can serve as an extra sleeping area when you have visitors. You can find out more about this nifty bed below.

What Size Mattress Fits A Trundle Bed


What Size Mattress Do You Need For A Trundle Bed?

A trundle is a type of bed that you can put underneath a bigger or regular-sized one to save space. Therefore, you can expect that it will require a smaller mattress size, such as a twin bed. You might confuse buying a mattress for the trundle bed as you would when selecting something for a bunk bed, but the latter is larger. 

You also have to consider that the bottom bed of a trundle will always be smaller since it’s set on casters or rollers for moving underneath the main bed. Still, a trundle bed functions like a bunk bed because it’s a single piece of furniture that offers two sleeping spaces. We will talk more about how you can select the mattress for a trundle bed later on, but first, is a trundle bed even for you?


Should you get a trundle bed?

If you want to have multiple sleeping areas but you’re limited in space, you can get a trundle bed over a bunk bed. The way it’s designed will only occupy a space in the room for a single bed. We also think this furniture is excellent for guest rooms where your visitor only needs to add bedding and pillows when they’ll use it. 

If you still want to be convinced, know that trundle beds come in different designs with additional functions. For example, some models come with drawers for extra storage of bed accessories. You might even find a trundle bed that can become a daybed for those living in apartments and who wants versatile appliances. 

Finally, bunk beds don’t come in the same frame. You could select the material you want if the manufacturer allowed it. Some common ones are metal, wood, and even upholstered to match your interiors.


What Is The Best Mattress For A Trundle Bed?

Now that you confirmed that you want a trundle bed, selecting a specific mattress model for it is no different when choosing for other types of beds. What we mean is that it should have the characteristics ideal for your needs and preferences. Some of the popular ones are from Zinus, eLUX, and Signature Sleep, but here are some considerations when choosing the best mattress for a trundle bed. 



We recommend getting memory foam beds for your trundle because of their features and durability. However, innerspring and hybrids are also gaining popularity for trundle beds. You also need to consider the cover’s quality that the mattress uses. 

It would be best if you got something that feels soft yet easy to wash to keep it fresh until someone rolls the mattress out. Breathable fabric is even more ideal since being enclosed underneath might make the bed smell stuffy. 



The twin mattress is perfect for trundle beds. Still, please measure the specific model you have to ensure that the bed will fit snugly when rolled under. A typical size to get is a 6-inch mattress, but you might be able to use something denser or have a different depth if your trundle allows. 

Why does size matter? Remember that the design of a trundle bed is what makes it unique. If you can’t roll or slide the mattress in and out with ease, it will defeat this furniture’s purpose. 



Finally, always check the reviews and returns of the product you’re getting. Even though you’re not using the trundle bed every day, it should still maintain its structural integrity for a long time. Our tip is to get something with an extended warranty and reasonable sleep trial. 

These periods could mean the faith of the manufacturer with their products. Some mattresses offer a 10-year warranty with a 30-day sleep trial. More so, check if the company is easy to contact in case of returns or replacements. 


Do You Need A Special Mattress For A Trundle Bed?

You don’t need a unique mattress for a trundle bed, but it should fit the frame correctly. Some brands will label their models meant for a trundle bed, or you can get a twin-size mattress to be sure. You also want to get something 8 to 10 inches thick only, which is why our preferred type of bed uses memory foam. 

Because the mattress underneath won’t be as thick, you can still get good support without a box spring if you use memory foam. This material is also durable, so you can feel confident that it will be in good condition when you use it. 



If you want extra sleeping space but don’t have the room fit for a bunk bed, you can get a trundle bed instead.  But what size mattress fits a trundle bed? A twin-size mattress would be ideal because of the smaller size of the bed under the trundle bed. 

We also recommend checking the specific trundle frame you have to ensure you’ll get a snug fit with the mattress.