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What to Put Under Memory Foam Mattress: A Comprehensive Bed Base Guide

From the Puffy Editorial Team | 4 min read.
What to Put Under Memory Foam Mattress: A Comprehensive Bed Base Guide

Memory foam mattresses have revolutionized the way we sleep. But, ensuring they're perched atop a suitable foundation is equally critical. Just like a house is only as strong as its foundation, the same goes for your memory foam mattress. So, what should you put under it? Let's explore the best options.

Table of Contents

Memory Foam Mattress on a Box Spring: Yay or Nay?

Can you put a memory foam mattress on a box spring? The answer might surprise many. Traditional box springs were primarily designed for innerspring mattresses, offering the bouncy support these mattresses required. However, for memory foam mattresses, here's the rundown:


  • Provides Height: Elevates the mattress, making it easier to get in and out of bed.
  • Familiarity: Many households already own box springs, providing a cost-effective solution.


  • Inadequate Support: Can cause sagging if the box spring is old or not robust.
  • Ventilation Concerns: Might lead to moisture build-up, reducing the lifespan of the mattress.

Choose a newer, sturdier box spring or consider placing a sheet of plywood on top for added firmness.

The Pros and Cons of Putting Memory Foam Mattress on the Floor

Can you put a memory foam mattress on the floor? It's not just a bohemian dream; many find it a practical solution.


  • Stability: A floor offers a uniformly firm surface.
  • Cost-effective: No need for an additional foundation.


  • Lack of Ventilation: Increases the risk of mold due to trapped moisture.
  • Accessibility: Can be tricky for people with mobility issues or older adults.

Regularly inspecting and rotating the mattress can mitigate some of the drawbacks.

Metal Bed Frame Compatibility with Memory Foam Mattresses

A metal frame, when compatible, ensures durability. But can you put a memory foam mattress on a metal bed frame?


  • Durable: Metal frames are known to be sturdy.
  • Ample Support: When paired with the right slats, it supports the mattress well.


  • Slat Spacing: Wide gaps can lead to sagging. Make sure the gaps are less than 2 inches.

Ensure you have a supportive foundation, perhaps through additional slats or a baseboard.

Slat Support and Memory Foam Mattresses

Can you put a memory foam mattress on slats? Slats are more common these days, especially with modern bed frames.


  • Improved Ventilation: Allows the mattress to breathe.
  • Aesthetically Pleasing: Often seen in contemporary bed designs.


  • Slats Spacing: If more than 2 inches apart, they might not offer ample support, leading to sagging.

Regularly check slats for any signs of wear or breakage.

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

Plywood as a Base: What You Need to Know

Thinking of a DIY approach? Can you put a memory foam mattress on plywood?


  • Uniform Support: Offers an even, firm base.
  • Affordable: Cost-effective compared to other foundations.

Things to Consider:

  • Type of Plywood: Ensure it's smooth and untreated.
  • Size and Thickness: Should match the mattress dimensions and be at least 3/4 inch thick.

A well-chosen plywood can increase the lifespan of your memory foam mattress.

The Pillow Top Conundrum with Memory Foam Mattresses

Can you put a pillow top on a memory foam mattress? Blending plush comfort with memory foam's body contouring can be tempting.


  • Enhanced Softness: Adds a plush, luxurious feel.
  • Pressure Relief: Offers additional cushioning.


  • Overheating: Can trap heat, especially if the pillow top isn't breathable.
  • Increased Bed Height: Might make the bed too high for some frames or preferences.

Consider a breathable, gel-infused pillow top for a cool sleeping experience.

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.


Your memory foam mattress's foundation is vital not just for durability and longevity but also for the quality of sleep you receive. Whether you're a minimalist considering a floor bed setup or someone who loves the sturdy feel of metal frames, ensure that your foundation choice complements the properties of memory foam. A harmonious pairing promises countless nights of restful slumber. Sweet dreams!

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