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How Do You Break In a Memory Foam Mattress?

Written by Land of Sleep | July 27, 2026


One of the biggest benefits of a memory foam mattress is that it gradually conforms to your body's unique shape, providing personalized comfort and support. However, many people are surprised when a brand-new memory foam mattress feels firmer than expected. The good news is that this is completely normal. As the foam adjusts to your body and your sleep habits, it becomes softer and more comfortable over time.

Still, if your mattress isn’t comfortable enough yet, there are simple ways to speed up the break-in period. With nearly 50 years of experience, the team at Land of Sleep in Sarasota and Venice knows exactly what works, and they’re sharing their best tips to help you get comfortable sooner.

Related Blog: Firm vs. Soft Mattress: Which One Is Right for You?

How Long Does It Take to Break In a Memory Foam Mattress?

Most memory foam mattresses take anywhere from a few days to a few weeks to fully break in. As you sleep on the mattress, your body weight and body heat naturally help soften the foam so it can better conform to your shape.

Several factors can affect how quickly your mattress breaks in, including:

  • Mattress materials and construction
  • Room temperature
  • How often the mattress is used
  • Your body weight and sleeping position

Many sleepers notice a significant improvement in comfort within the first week.

Should You Use a Mattress Topper While Breaking In a Memory Foam Mattress?

While a mattress topper may make your bed feel softer immediately, it can actually slow down the break-in process.

A topper acts as a barrier between you and the mattress, reducing the direct pressure the memory foam needs to soften and adapt.

If you're trying to break in your mattress more quickly, it's usually best to wait before adding a topper.



Can Walking on a Memory Foam Mattress Help Break It In?

Yes! Gently applying even pressure across the mattress can help speed up the conditioning process.

You can safely apply pressure by:

  • Walking carefully across the mattress
  • Kneeling gently on different areas
  • Sitting in different spots
  • Spending extra time lying on the mattress

The goal is simply to help the foam compress evenly.

Does Heat Help Soften Memory Foam

Memory foam is temperature sensitive. As it warms, it becomes softer and more flexible, allowing it to contour more easily to your body.

That's why a new mattress may feel firmer during the first few nights or in a cooler room.

Should You Raise the Temperature in Your Bedroom?

Temporarily increasing your bedroom temperature by a few degrees can help memory foam soften more quickly.

Once your mattress has fully adjusted, you can return your room to your preferred sleeping temperature.

Frequently Asked Questions About Breaking In a Memory Foam Mattress

How long does it take to break in a memory foam mattress?

Most memory foam mattresses take anywhere from a few days to a few weeks to fully break in. Regular use, body heat, room temperature, and the mattress materials all influence how quickly the foam softens and adapts to your body.

Why does my new memory foam mattress feel so firm?

A new memory foam mattress often feels firmer because the foam hasn't yet adjusted to your body. As you sleep on it, the material gradually softens and conforms to your shape, creating the pressure relief memory foam is known for.

Can you speed up breaking in a memory foam mattress?

Yes. Sleeping on the mattress consistently, gently applying pressure across the surface, and keeping the room slightly warmer can all help speed up the break-in process.

Should you use a mattress topper on a new memory foam mattress?

If you're trying to break in your mattress more quickly, it's usually best to wait before adding a topper. A topper can reduce the direct pressure needed for the memory foam to soften and conform to your body.


If your new memory foam mattress feels firmer than expected, don't worry, that's completely normal. With a little time, you'll begin enjoying the pressure relief and personalized support memory foam is designed to provide.

If you're shopping for a new mattress or have questions about caring for your current one, visit Land of Sleep in Sarasota or Venice. Our sleep experts are happy to help you find the right mattress for your comfort preferences and sleep needs.