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Blog Lux Comfort

Trundle Mattress Size: Essential Guide

From the Puffy Editorial Team | 3 min read.
Trundle Mattress Size: Essential Guide

Trundle beds are a fantastic space-saving solution, offering a hidden extra sleeping area that’s perfect for guests or children’s rooms. Choosing the right trundle mattress size is crucial for comfort, functionality, and aesthetics. This comprehensive guide explores various aspects of trundle mattress sizes, helping you make an informed choice.

What is a Trundle Mattress?

  • Definition: A trundle mattress is specifically designed for use with a trundle bed, a type of bed that neatly tucks away under another bed when not in use.
  • Features: These mattresses are typically thinner than standard mattresses to fit into the trundle frame.

What Size Mattress for Trundle Bed

  • Standard Dimensions: The most common trundle mattress sizes are twin (38 inches by 75 inches) and twin XL (38 inches by 80 inches).
  • Custom Sizes: Some trundle beds may require custom-sized mattresses, especially if the trundle frame is non-standard.

Is a Trundle Mattress the Same Size as a Twin?

  • Comparison with Twin Mattress: While trundle mattresses are often twin-sized in terms of length and width, they differ in thickness to accommodate the trundle bed’s limitations.
  • Thickness Consideration: A typical trundle mattress is 6 to 8 inches thick, whereas a standard twin mattress can be up to 10 inches or more.

Trundle Bed Mattress Size vs Twin

  • Length and Width: Generally, both have similar dimensions in length and width.
  • Height Difference: The key difference lies in the height, with trundle mattresses being thinner.

How Thick is a Trundle Mattress?

  • Average Thickness: Ranges from 6 to 8 inches, designed to fit comfortably under the main bed frame without compromising on comfort.
  • Maximum Thickness: It’s crucial to check the trundle bed’s specifications, as exceeding the maximum thickness can hinder the trundle’s functionality.

In terms of comfort, a Puffy Lux Mattress, although designed for regular beds, sets a standard in mattress quality that you can seek in trundle mattresses.

Check out Puffy mattress reviews from real customers and see how we compare with other brands.

Best Trundle Mattress

  • Comfort: Look for a mattress that provides adequate support within the thickness constraints.
  • Material: Memory foam and innerspring are popular choices for their balance of comfort and slim profile.
  • Durability: Given the unique storage of trundle beds, choose a mattress that can withstand regular movement and compression.

Selecting the Perfect Trundle Mattress

  1. Measure Your Trundle Frame: Ensure accurate measurements to find a mattress that fits perfectly.
  2. Consider Usage: For frequent use, prioritize durability and higher-quality materials.
  3. Test for Comfort: If possible, test the mattress for comfort, keeping in mind it will be thinner than a regular mattress.

When considering a trundle bed for a guest room, think about complementing it with a Puffy Royal Mattress in the main sleeping area for a consistently comfortable sleep experience throughout the room.

Use our store locator to find the closest furniture or mattress store near you and feel the cloudlike comfort of our Puffy Mattress in person.


Selecting the right trundle mattress size is crucial for both practicality and comfort. Understanding the differences in dimensions and thickness between trundle and standard mattresses will guide you in making the best choice for your needs. With the right trundle mattress, you can maximize your space without sacrificing comfort.

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Lux Hybrid Mattress yours.

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  • 6 layers of cloudlike luxury.
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