Mattress Sagging vs Body Impressions

Last Updated On January 16th, 2024
Mattress Sagging vs Body Impressions

Key Takeaways

  • What Is Mattress Sagging: Mattress sagging is when a mattress develops noticeable dips or sinking areas over time, leading to discomfort and reduced sleep quality. It can be caused by aging foam, loss of coil tension, and lack of mattress maintenance.
  • What Are Body Impressions: Body impressions are visible indentations that form on the mattress surface due to the mattress conforming to your body’s shape during sleep. They can lead to an uneven and less comfortable sleep surface.
  • Preventing Indentations: To prevent or minimize sagging and body impressions, consider rotating your mattress regularly, choosing a mattress with responsive materials like memory foam or latex, and practicing proper mattress maintenance. Additionally, selecting a high-quality mattress can extend its lifespan and provide a more comfortable sleep experience.

When you buy a brand-new mattress, you don’t want it to sag, but the truth is, all mattresses will eventually sag. Almost every mattress also gets body impressions. It can be difficult to tell the difference between the two. So, how can you figure it out?

And most importantly, how can you stop or delay sagging and body impressions? If you’ve noticed your mattress feels less comfy or has a dip where you sleep, don’t worry, many people have the same problem. It’s important to understand the causes and solutions.

Save $450 On Any Mattress

Plus free shipping

Get $450 OFF Mattresses

Get ready to learn about mattress sagging and body impressions, which are common issues that can affect your mattress. Let’s learn some useful tips on how to keep your mattress in good condition for a better night’s sleep. Let’s start and find out the secrets to having a comfortable and supportive mattress.

What Is Mattress Sagging?

Mattress sagging is when a mattress starts to sink or develop a noticeable dip over time. It happens because the materials inside the mattress lose their ability to bounce back and provide support. You might notice uneven areas or indentations where you usually sleep. Mattress sagging can make your mattress feel less comfortable and affect your quality of sleep.

Best Amerisleep Mattresses That Won’t Sag

Quick Guide: A 30-Second Summary

Best Mattress That Won’t Sag Overall Amerisleep AS3
Best Firm Mattress That Won’t Sag Amerisleep AS2
Best Soft Mattress That Won’t Sag Amerisleep AS5
Best Natural Mattress That Won’t Sag Amerisleep Organica

Potential Causes of Mattress Sagging

Understanding what can lead to sagging and mattress indentation will help you take proactive measures to maintain the comfort and support of your mattress for a longer time.

Aging Foam

As your mattress gets older, the foam inside may lose its original shape and support. The foam might start to compress, making the mattress feel less comfortable and causing a normal body impression. By understanding how foam compressing contributes to sagging, you can proactively take measures to prevent premature wear, extend how long your mattress lasts, and ensure a more restful night’s sleep.

Loss of Coil Tension

When the coils in a mattress become less tight and supportive over time, the mattress may start to sink and develop uncomfortable dips and body impressions. Body impressions form when the mattress’s surface conforms to your body’s shape, creating indentations.

Understanding the impact of coil tension loss allows you to consider mattresses with more durable coil systems, helping you make better-informed decisions when choosing a mattress. By taking proactive measures such as regular maintenance and proper weight distribution, you can extend the lifespan of your mattress and minimize the development of body impressions.

No Mattress Maintenance

When you neglect regular maintenance like flipping or rotating your mattress, it can lead to uneven wear and tear. Dust and dirt can accumulate, degrading the materials over time, and the lack of proper care might cause the mattress to sag prematurely.

Body impressions can form as a result of this wear and tear. By staying on top of mattress maintenance regularly and following the manufacturer’s guidelines, you can help prolong the lifespan of your mattress and prevent sagging from occurring. Remember, a little maintenance can go a long way in preserving the comfort and support of your mattress.

What Are Body Impressions?

Body impressions are indentations or depressions that form on the surface of a mattress over time. They occur as a result of the mattress conforming to the shape and weight of your body during sleep. These impressions can be visible and can make your mattress feel uneven or less comfortable. Body impressions can develop in areas where you frequently sleep or apply more pressure, such as the hips, shoulders, and lower back.

Understanding what body impressions are and how they form based on your sleeping position can help you take proactive steps to prevent or minimize their occurrence, ensuring a more comfortable and supportive sleep surface.

Preventing Permanent Body Impressions

Permanent body impressions can make your mattress feel uncomfortable and reduce its lifespan. By implementing these preventative measures, you can maintain a more even sleep surface and ensure the longevity of your mattress. Let’s explore some practical tips to keep those pesky body impressions at bay.

Rotate Mattress Regularly

To prevent sagging and maintain mattress support for a longer time, regularly rotate your mattress every three to six months. This will distribute weight evenly and avoid excessive wear on one side.

Avoid placing heavy objects or sitting on the edges for long periods to prevent strain on the springs, and be mindful of the weight on your mattress. Lastly, invest in a high-quality mattress with reinforced edges, strong support cores, and durable materials to ensure better comfort and longevity while minimizing the risk of premature sagging.

While reinforced sides are good to deter sagging, it’s important not to sit on the ends too much or you risk compromising the mattress edge support.

Rely on Responsive Mattress Materials

Choose a mattress that relies on responsive materials to enhance your sleeping experience. Responsive mattress materials, such as natural latex or memory foam, adapt to your body shape and provide customized support. These materials help distribute your weight evenly, reducing the likelihood of body impressions and sagging.

By opting for a mattress with responsive materials, you can enjoy a comfortable and supportive sleep surface that conforms to your body’s needs. Additionally, responsive materials can also establish a mattress for pressure points and to support spinal alignment, leading to a more restful and rejuvenating sleep.

Types of Mattresses to Consider

Discover various types of mattresses to consider for a good night’s sleep. Here are some options available, each with its own unique features and benefits tailored to match your personal preferences and sleep requirements.

Memory Foam Mattresses

Memory Foam Mattresses
Memory foam mattresses

If you want a mattress that resists sagging, consider choosing a memory foam mattress. These mattresses are designed to promote spinal alignment with their dense upper layers of polyurethane foam, providing excellent support and relieving joint pain.

Additionally, memory foam mattresses are perfect for light sleepers and as mattresses for couples who desire undisturbed rest since they effectively isolate motion. For enhanced comfort and temperature regulation, you can opt for a memory foam mattress infused with cooling gel or with plant-based materials, ensuring a cooler and more comfortable night’s sleep

Latex Mattresses

Latex Mattresses
Latex mattresses

When it comes to having a bed that resists sagging, latex mattresses are worth considering. They are known for their durability, comfort layers, and eco-friendly nature, providing a reliable and sag-free sleeping surface.

Latex mattresses offer responsive support that gently hugs your body without fully conforming to its shape. Plus, the benefits of latex mattresses include cooling properties that promote airflow and effectively dissipate body heat, ensuring a comfortable sleep space.

Innerspring Mattresses

Innerspring Mattresses
Innerspring mattresses

Consider the classic option of an innerspring mattress in your search for a sag-free bed that prevents body indentations. These mattresses offer excellent edge support, ensuring you don’t roll off during sleep, and they’re highly breathable too. It’s worth noting that innerspring mattresses may require a bed base for optimal performance, and if you’re a light sleeper or require specific joint support, other mattress options might be more suitable.

Hybrid Mattresses

Hybrid Mattresses
Hybrid mattresses

Hybrid mattresses combine the features of traditional spring beds and memory foam, offering a comfort layer made of latex foam or viscoelastic foam. With a coil base for support, hybrids provide even weight distribution, support, and a body-hugging feel, along with the added advantage of edge support.

They are particularly suitable for side sleepers who prefer a bed with more bounce, as hybrids provide pressure point relief and a comfortable surface to sleep on.

Air Mattresses

Air Mattresses
Air Mattresses

These mattresses rely on one or multiple air chambers that can be inflated to provide the desired firmness. However, it’s important to note that sagging can occur over time due to factors like slow air leaks and loss of elasticity in the materials. Excessive weight in certain areas and an uneven or weak support surface can also contribute to sagging.

To prevent sagging, follow the instructions of mattress manufacturers for inflation and maintenance, regularly inspect the bed for leaks, and ensure you use a supportive and even surface for your air mattress.

Waterbed Mattresses

Waterbed mattresses

Resilient and stable, waterbed mattresses offer a sag-free sleep experience with their unique design that maintains your body’s natural form. Filled with water, these mattresses evenly distribute body weight and provide constant support. By conforming to the natural curve of your body, the water inside the mattress eliminates pressure points and prevents sagging, allowing you to fall asleep comfortably and wake up refreshed.

How to Take Care of a Mattress

To prevent severe sagging in your existing mattress, it’s important to take proper care of it:

  • Avoid placing excessive weight on one area of the mattress by rotating it regularly.
  • You should also avoid leaving heavier objects such as a weighted blanket or a pile of books lying about on the surface, as these place undue wear and tear on the surface.
  • You may also use a protector to shield the entire mattress from spills, stains, and moisture.
  • Ensure proper mattress support by using a sturdy bed frame or foundation that can evenly distribute body weight.

By following these maintenance tips, along with other basic care like regularly cleaning your mattress, you can help prevent severe sagging and prolong the lifespan of your mattress.

Frequently Asked Questions

Are body impressions in a mattress normal?

Yes, body impressions in a mattress are considered normal and can be expected over time. Body impressions are a natural result of the mattress contouring to your body’s curves and providing support where it’s needed.

They are more likely to occur in memory foam or other conforming materials, as these materials are designed to respond to pressure and body heat.

How do you fix a sunken spot on a mattress?

To fix a sunken spot on a mattress, you can try rotating or flipping the mattress to distribute the weight more evenly. Alternatively, you can place a mattress topper, a few extra pillows, or a layer of foam padding on the sunken area to provide additional support and restore the mattress’s surface.

If the sunken spot persists or worsens despite your efforts, it’s recommended to reach out to the mattress manufacturer or retailer. Check the warranty information for your mattress and inquire about any potential remedies they may offer for defects like mattress sagging. They may provide further assistance with mattress replacement options under your mattress warranty.

What mattress won’t leave body impressions?

Memory foam mattresses are less likely to leave body impressions compared to other mattress types. The viscoelastic nature of memory foam allows it to conform to the body’s shape and distribute weight evenly, reducing the likelihood of permanent indentations.

Also of note, higher-density memory foams tend to be more resilient and resistant to body impressions. However, it’s important to note that all mattresses may develop slight body impressions over time due to regular use.

Can a mattress topper fix a sagging mattress?

Yes, a mattress topper can help restore a sagging mattress’s feel by adding extra padding and support, improving comfort, and reducing the appearance of sagging. However, it may not fully resolve the underlying sagging issue, and even with a topper you may experience discomfort and pain on your mattress. 

So it’s important to consider the overall condition of the mattress and ask yourself whether a mattress topper or a new mattress is the right solution.

How long should a mattress last before sagging?

A mattress should typically last between 7 to 10 years before mattress sag becomes noticeable. However, the lifespan can vary depending on factors like the quality of the mattress, usage patterns, and proper maintenance. Generally speaking, high-quality foam mattresses last longer than coil mattresses due to their base layers.


Mattress body impressions and sagging are common issues that can affect the comfort and support of a mattress over time. While some degree of body impressions may be expected, excessive sagging can impact sleep quality and overall mattress lifespan. If that happens to you, you should measure the mattress sag for the warranty.

By understanding the causes and taking preventive measures, such as proper maintenance for a new bed, choosing the right mattress type, and rotating it regularly, you can avoid mattress sagging and normal body impressions, ensuring a comfortable and supportive sleep surface for years to come.

About the author

April Mayer is a sleep expert and writer with a degree in exercise physiology. She has dedicated her career to exploring the relationship between sleep and productivity. Her insightful articles, such as "The Surprising Way Your Mood Might Be Messing With Your Productivity" and "Wake Up to More Productive Mornings," have been featured in reputable publications like Forbes, Greatist, Real Homes, Thrillist, Tom's Guide, and Eat This, Not That. With a passion for helping others lead more productive lives through restful sleep, April offers valuable expertise on foods and vitamins for better sleep. As a trusted member of the Early Bird team since March 2020, she continues to provide informative and well-researched content.

View all posts

Discover the ultimate sleep system

Choose your mattress

Shop top-rated mattresses with proven sleep-boosting materials.

Get a pillow

We have the perfect pillow to pair with your mattress.

Browse Pillows

Pick out bedding

Bring out the best in your mattress with our soft and breathable bedding.

Browse Bedding