Soft vs Firm Mattress: Which One is Right for You?

Written by Zulekha Nishad

Last Updated November 18, 2024

When it comes to buying a new mattress, one of the first decisions many of you'll face is the soft vs firm mattress debate. The choice can feel overwhelming, especially since it plays a big role in how well you sleep and how you feel the next day. Some people prefer a soft mattress's plush, sink-in feel, while others need the support and stability that a firm mattress provides. In this article, we’ll look at both options—exploring their benefits, drawbacks, and how to pick the right one based on your body type and sleeping habits.

Key Takeaways:

  • Mattress firmness directly affects how well your spine stays aligned, how pressure points are cushioned, and whether you wake up pain-free.
  • Soft mattresses are excellent for side sleepers and lighter individuals, offering cushioning for joints like hips and shoulders.
  • Firm mattresses are ideal for back and stomach sleepers and those with higher body weight.
  • Sleep position, body weight, and personal comfort preferences determine whether a soft or firm mattress is suitable.
  • Testing different options and considering materials like latex or hybrid constructions can help find the right balance between support and coziness.
Soft vs Firm Mattress

Why Mattress Firmness Matters

The firmness level of your mattress affects the support and pressure relief your body receives while you sleep. The right firmness can prevent back pain, align the spine, and reduce discomfort in pressure points like your hips and shoulders. On the other hand, the wrong firmness level can disrupt your sleep quality and lead to aches, discomfort, or even longer-term issues.

Soft and firm mattresses are categorized based on the amount of support and cushioning they provide, with firmness typically measured on a scale from 1 to 10. This scale helps buyers determine which type of mattress best suits their sleep comfort and spinal support needs.

Mattress firmness scale

Understanding the unique characteristics of soft and firm mattresses—and which one might be best for you—can make all the difference.

What Are Soft Mattresses?

Soft mattresses, rated around 1-3 on the firmness scale, have a plush, cushiony feel that lets you sink in a bit more than firmer options. They give a cozy, almost cloud-like sensation that many people find comforting.

Image of a soft mattress

Pros of soft beds

Let's start with the pros of soft mattresses:

  • Ideal for Side Sleepers

Side sleepers benefit the most from a soft mattress. When you sleep on your side, your body’s weight is concentrated around your shoulders, hips, and knees. A soft mattress allows these pressure points to sink in, relieving the stress on your joints and ensuring that your spine remains aligned.

  • Pressure Relief

Soft mattresses excel in providing pressure relief for the body. They are designed to cushion sensitive areas, such as the lower back, hips, and shoulders, reducing the risk of developing pressure sores or discomfort over time. People with conditions like arthritis or fibromyalgia can often find relief in the soft cushioning of a mattress, as it gently conforms to their body shape.

  • Comfort for Lighter Individuals

If you’re a lighter individual (under 130 pounds), a soft bed can provide a more comfortable and supportive sleep experience. Lighter individuals generally don’t exert enough pressure on a firm mattress to get the support they need. A soft mattress helps distribute their body weight properly, which reduces the likelihood of pressure points and provides a more comfortable sleep.

Cons of Soft Beds

Now, let's look at the drawbacks of soft mattresses:

  • Not Ideal for Heavier Individuals

One of the major downsides of a soft mattress is that it may not offer enough support for heavier individuals. If you weigh more than 230 pounds, a soft mattress may cause you to sink too deeply into the bed, leading to poor spinal alignment.

  • Lack of Support for Stomach and Back Sleepers

A soft mattress may not provide adequate support if you sleep on your stomach or back. Stomach sleepers, in particular, require a firmer surface to prevent their hips from sinking into the mattress, which can lead to an arched lower back and pain. Similarly, back sleepers need a mattress that keeps their spine aligned, which is harder to achieve with a soft mattress.

  • May Cause Back Pain for Some

While soft mattresses may seem comfortable, they can contribute to back pain for certain individuals. People who need more support may experience an unnatural spine curvature when sleeping on a soft mattress. Over time, this can lead to discomfort and muscle strain.

  • Durability Concerns

Soft mattresses may not be as durable as firmer options. The plush surface is often made with softer materials that compress over time, leading to indentations and wear. This can shorten the lifespan of the mattress, especially if you’re heavier or if the mattress is exposed to excessive pressure. This means you may need to replace a soft mattress sooner than a firmer one.

latex mattress

What are Firm Mattresses?

Firm mattresses, usually rated 7-10 on the firmness scale, have a more solid, supportive feel with very little sink. They’re great for keeping your body aligned without too much contouring, making them a good choice for people who need extra support while they sleep.

Image of a firm mattress

Pros of Firm Beds

Here are some of the major benefits of sleeping on a firm mattress

  • Excellent Support for Back and Stomach Sleepers

Firm mattresses provide the most support for back and stomach sleepers. A firm surface helps keep your spine aligned by preventing excessive sinking, which is especially important for stomach sleepers who need a flat surface to avoid putting strain on the lower back. Back sleepers also benefit from firm mattresses, as they offer the necessary support to maintain neutral spinal alignment.

  • Ideal for Heavier Individuals

Heavier individuals (over 230 pounds) tend to fare better with firm mattresses because they provide the extra support needed to prevent sinking. A firm mattress helps distribute the weight evenly across the surface, ensuring that the spine stays aligned, which reduces the risk of back pain. Also, for those with a higher body mass, a firm mattress offers better durability and resistance to sagging over time.

  • Promotes Proper Posture

A firm mattress helps maintain proper posture during sleep, which is very important for overall spinal health. By keeping the body from sinking too deeply into the mattress, it ensures that the spine stays in a neutral position. This alignment can reduce the risk of developing pain and discomfort, especially in the neck, lower back, and hips.

  • Better Durability

Firm mattresses tend to last longer than soft mattresses. The materials used to construct firm mattresses, such as high-density foams and stronger coils, are more resistant to wear and tear. As a result, they maintain their shape and support over time, making them a more durable option for those looking for a long-term investment.

Cons of Firm Beds

Now, let's take a look at the drawbacks of firm mattresses.

  • Not Ideal for Side Sleepers

While firm mattresses work well for back and stomach sleepers, side sleepers may find them uncomfortable. Firm surfaces don’t provide the same level of pressure relief for the shoulders and hips, which can lead to painful pressure points.

  • Can Feel Too Rigid for Lighter Individuals

For individuals under 130 pounds, a firm mattress may feel uncomfortably rigid. These individuals don’t exert enough pressure to compress the mattress, meaning they may not experience the contouring and cushioning that a softer mattress provides. As a result, they may not get the same level of comfort and support that they would from a medium or soft mattress.

  • Risk of Back Pain for Some

While firm mattresses can be beneficial for many people, they can also contribute to back pain if they don’t suit your body type or sleeping position. If a mattress is too firm for your sleeping habits, it can cause pressure to build up on certain parts of your body, leading to discomfort. This is true for people with certain conditions, such as scoliosis, who require a more balanced or softer surface to sleep on.

  • May Feel Uncomfortable at First

For those who are used to a softer surface, switching to a firm mattress can be uncomfortable at first. It may take time to adjust to the lack of cushioning, and some people may find that they feel sore or restless during the transition period. However, once your body adapts, the added support can significantly improve your sleep quality.

How to Choose Between Soft and Firm

Selecting the right mattress comes down to a few key factors. Here’s how you can decide:

Consider Your Sleeping Position

Your preferred sleeping position plays a major role in determining the type of mattress that will best support your body. Each sleep position places different demands on your spine and joints, so it’s important to choose a mattress that accommodates these needs.

Consider your sleeping position when choosing between a soft & firm mattress
  • Side Sleepers – Typically need a softer mattress for pressure relief on hips and shoulders.
  • Back Sleepers – Do best with a medium-firm to firm mattress to keep the spine aligned.
  • Stomach Sleepers – Benefit from a firm mattress that prevents the midsection from sinking too deeply.

Your Body Type

Body weight also influences how a mattress feels and performs. Lighter individuals typically benefit from softer mattresses, while heavier sleepers may need more support to prevent excessive sinking and to ensure even weight distribution.

Consider your body type when choosing between soft & firm mattress
  • If you weigh less than 130 pounds, a softer mattress may provide the best comfort and support.
  • For people in the average weight range, a medium-firm mattress often provides an optimal balance of comfort and support.
  • Heavier sleepers may find that a firm mattress is most supportive and durable over time.

Comfort and Personal Preference

Ultimately, mattress firmness is a matter of personal comfort, and everyone has different preferences. If you enjoy a plush, enveloping feel, a soft mattress will likely provide the comfort you’re looking for. On the other hand, if you prefer a solid, supportive sleep surface, a firm mattress will offer the sturdiness you need.

Consider your personal comfort preferences when choosing between a soft & firm mattress

Comfort is subjective, and factors like temperature preferences, sleep habits, and any pre-existing health concerns can all play a role. Testing mattresses, if possible, is one of the best ways to find the right firmness level.

natural and organic latex mattress topper

Additional Factors to Consider

Here are some additional points to keep in mind:

Mattress Material: The material of the mattress can influence its softness or firmness. Memory foam, latex, and hybrid mattresses all have varying degrees of firmness, so it's worth exploring these materials to find what works best for you.

Durability: Firm mattresses tend to last longer than soft mattresses. If you’re looking for a long-term investment, a firmer mattress may be more durable.

Budget: Price can be a deciding factor when choosing between a soft or firm mattress. Firm mattresses are often more affordable, but some high-end soft mattresses may offer luxury materials that come at a higher cost.

The Bottom Line

Choosing between a soft and firm mattress really comes down to what feels best for you. Your sleep position, body type, and comfort preferences all play a part in the decision.

Soft mattresses tend to be a great fit for side sleepers and lighter folks, offering a cushy feel that eases pressure points. Firm mattresses, on the other hand, give that steady support that’s often ideal for back or stomach sleepers and heavier individuals.

If you're not sure where to start, a certified sleep science coach can offer guidance. Trying out different mattresses in-store is also a great idea, as you get a good feel of what each mattress firmness level can offer. At the end of the day, it’s about finding what gives you the best chance at a good night’s sleep. After all, the right mattress should leave you feeling rested and ready to take on the day.

natural and organic pillows

FAQs

1. Is it better to sleep on a firm or soft mattress?

There’s no one-size-fits-all answer; it depends on your sleep position, body type, and comfort needs. Side sleepers or lighter individuals might prefer a soft mattress for pressure relief, while back and stomach sleepers or heavier individuals may find a firm mattress better for support.

2. Is a firm bed better for your back?

A firm bed can indeed be better for your back if you are a back sleeper or a stomach sleeper. A firm mattress helps maintain the natural alignment of your spine, preventing your body from sinking too much and putting unnecessary strain on your back muscles and joints.

3. Can a firm mattress be uncomfortable?

It can feel uncomfortable if a firm mattress is too hard for your body type or sleeping position. For example, side sleepers may find a firm mattress uncomfortable because it doesn't offer enough pressure relief for the shoulders and hips.

4. Do soft mattresses cause back pain?

Not necessarily, but soft mattresses can cause back pain if they don’t offer enough support for your spine, especially for back and stomach sleepers. For people with lower back pain, a medium-firm or firm mattress might be a better choice to maintain proper spinal alignment.

5. Are firm mattresses better for heavier individuals?

Heavier individuals (over 230 pounds) often find firm mattresses more supportive, as they prevent excessive sinking and help maintain spinal alignment. A soft mattress may not provide enough support, leading to discomfort.

6. How long do soft and firm mattresses last?

Firm mattresses tend to last longer than soft mattresses because they are made with materials that resist sagging and wear. Soft mattresses, especially those with foam, may compress over time and lose their supportive qualities sooner.

7. Firm vs. Soft - Which mattress is better for back sleepers?

Back sleepers need a medium-firm or firm mattress to keep their spine properly aligned.

8. Should I choose a soft or firm mattress if I have joint pain?

If you have joint pain, a soft mattress may help by relieving pressure on sensitive areas like your hips, shoulders, and knees. However, if you are a heavier person or sleep on your back, you may find that a medium-firm mattress offers the right balance of comfort and support.

9. How do I know if I need a soft or firm mattress?

The right mattress depends on your sleeping position, body type, and comfort preferences. Side sleepers usually prefer a softer mattress for pressure relief, while back and stomach sleepers may benefit from a firmer surface.

Your weight also matters—heavier individuals usually need firmer mattresses for adequate support. Test out different firmness levels to find what feels most comfortable for your body.

Related blog posts:

1. How to Make a Firm Mattress Softer

How to Make a Firm Mattress Softer

2. How to Choose a Mattress?

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3. What Are the Benefits of a Latex Mattress?

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4. Types of Mattresses Explained

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5. Mattress Glossary

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Disclaimer: What is said in this article has been referenced from multiple sources and is intended only for educational and informational purposes. Please note that no content in this article is a substitute for professional advice from a qualified doctor or healthcare provider. Always consult an experienced doctor with any concerns you may have regarding a health condition or treatment, and never disregard any medical suggestions or delay in seeking treatment because of something you read here.

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