The best mattress for back pain is a medium-firm mattress, since it supports the spine’s natural curves while still relieving pressure at the shoulders and hips. Mattresses that are too soft let the hips sink out of alignment, while ones that are too firm create pressure points, both of which can leave you waking up with stiffness or pain that wasn’t there the night before.
Key Takeaways:
- Memory foam and latex generally offer more consistent support than innerspring, especially for side sleepers and those with existing back pain.
- Side and back sleeping put less strain on the spine overnight than stomach sleeping.
- Morning stiffness that eases as the day goes on is one of the clearest signs your mattress isn’t supporting your spine properly.
- A mattress typically needs replacing every 7–10 years, sooner if you notice sagging or uneven firmness
How an Unsupportive Mattress Causes Back Pain
The spine has three natural curves: cervical (neck), thoracic (upper back), and lumbar (lower back). These curves work together to absorb shock and distribute weight evenly during movement and rest. A mattress that’s too soft or too firm disrupts this alignment overnight, which is why the right choice comes down to a few key factors.
Key Factors to Consider When Choosing a Mattress
Support
A mattress that offers good support helps maintain the natural alignment of your spine by distributing your weight evenly, rather than letting pressure build up in one area. Uneven weight distribution is a common cause of shoulder pain for side sleepers in particular, since the shoulder absorbs most of the body’s weight in that position. Memory foam and latex mattresses tend to offer the most consistent support, as they contour to the body’s shape rather than pushing back against pressure points.
Firmness Level
The firmness of a mattress is often a matter of personal preference, but it also plays a crucial role in preventing back pain. A mattress that is too firm can cause pressure points and discomfort, while one that is too soft may not provide adequate support, leading to poor alignment. A medium-firm mattress is good for back pain because it gives both support and comfort in a balanced way.
Material
Different mattress materials offer varying levels of support and comfort, particularly when it comes to relieving back pain.
| Material | Best For | Firmness Level | Avoid If |
| Memory Foam | Back pain, side sleepers | Medium-firm, contouring | You sleep hot |
| Latex | Back pain, hot sleepers | Medium-firm, responsive | You want a softer sink-in feel |
| Innerspring | Budget buyers, stomach sleepers | Firm, bouncy | You need pressure relief |
| Hybrid | Combination sleepers, side sleepers, heavier individuals | Medium to firm | You want max contouring |
Sleeping Position
Your sleeping position significantly impacts the type of mattress that will best support your back. According to the Sleep Foundation, side and back sleeping are generally considered more supportive for spinal alignment than stomach sleeping, since both make it easier to keep the spine balanced from the hips to the head.
- Back Sleepers: A medium-firm mattress is ideal for back sleepers as it supports the natural curve of the spine without causing it to sink too deeply.
- Side Sleepers: A slightly softer mattress can help relieve pressure on the shoulders and hips, which are the main pressure points for people who sleep on their side.
- Stomach Sleepers: A firmer mattress is usually better for people who sleep on their stomach to prevent the midsection from sinking too deeply, which can cause strain on the lower back.
Body Weight
Your body weight can influence the type of mattress that will best prevent back pain:
- Lightweight Sleepers (< 65kg): Soft mattresses can provide adequate support and comfort.
- Average Weight Sleepers (65 – 90kg): Medium-firm mattresses usually offer the right balance of support and comfort.
- Heavier Sleepers (> 90kg): Firmer mattresses can provide the necessary support to prevent sinking and maintain proper spinal alignment.
What Are the Signs That Your Mattress Is Causing Back Pain?
Waking Up with Pain and Stiffness
If your back pain is worse in the morning and improves as the day goes on, your mattress likely isn’t supporting your spine properly during sleep. This pattern is one of the strongest indicators of a mattress problem, since pain caused by other factors (like injury or posture) typically doesn’t follow this same morning-to-evening pattern.
Restless Sleep and Frequent Tossing and Turning
Frequent tossing, turning, or waking up to shift positions usually means the mattress is too soft, too firm, or simply mismatched to your body and sleeping style. Your body naturally tries to find a comfortable position when the surface isn’t providing adequate support, which disrupts deep sleep even if you don’t fully wake up.
Sagging, Sinking, or Uneven Firmness
Visible indentations, a sensation of sinking in, or inconsistent firmness across the surface all point to the same issue: the mattress has lost its structural support. Once this happens, your spine can no longer stay aligned through the night, which is often when occasional back discomfort turns into a chronic problem.
If you’re already experiencing back pain despite these signs, book a consultation with our chiropractors to find out whether your spine has been affected and what your next steps should be.
Tips for Testing a Mattress
Before making a purchase, it’s crucial to test the mattress. Here are some tips to ensure you choose the right one:
- Lie Down for At Least 10-15 Minutes: Spend enough time lying on the mattress in your usual sleeping position to gauge its comfort and support level.
- Check for Return Policies and Trial Periods: Many mattress companies offer trial periods that allow you to return the mattress if it doesn’t meet your needs. This can be particularly helpful in ensuring you’ve made the right choice.
- Consider Reading Reviews: Look for reviews from other customers, especially those who share similar preferences and sleeping positions. Their insights can help you make a more informed decision.
Additional Considerations
Apart from the factors mentioned above, here are a few additional considerations:
- Adjustable Beds: For some people, adjustable beds can provide the necessary support and comfort to prevent back pain. They allow you to adjust the position of the mattress to suit your needs.
- Pillows: The right pillow can also play a significant role in preventing back pain. Ensure that your pillow supports your neck and aligns with your spine. Poor neck support overnight is a common reason people end up waking up with neck pain, even if their mattress is otherwise fine.
- Mattress Lifespan: Over time, even the best mattresses can wear out and lose their supportive qualities. Generally, a good quality mattress should last about 7-10 years. If your mattress is older, it might be time to consider a replacement.
Conclusion
Choosing the right mattress for back pain comes down to a few key factors: support, firmness, material, sleeping position, and body weight. Testing a mattress in person, checking the return policy, and reading reviews before buying will help you find one that keeps your spine aligned and reduces your risk of back pain.
If you’re still experiencing discomfort even after switching mattresses, you should consider getting a spinal assessment. At Live Well Chiropractic, our chiropractors can help determine whether your back pain is mattress-related or linked to an underlying issue. Schedule a consultation today to find out how the right care, combined with the right mattress, can improve your sleep and spinal health.
Frequently Asked Questions
Which type of mattress is best for back pain?
Medium-firm mattresses made from memory foam or latex are generally best for back pain, since they support the spine’s natural curves while still relieving pressure at the shoulders and hips.
Is a soft or firm mattress better for lower back pain?
For lower back pain specifically, a medium-firm mattress is usually the safer choice, since it keeps the lumbar curve supported without letting the hips sink too deep. A mattress that’s too soft can let the lower back arch unnaturally overnight, while one that’s too firm may create pressure at the hips and shoulders that throws the spine out of alignment elsewhere.
Should I prioritise support or comfort when choosing a mattress for back pain?
Support should come first. A mattress can feel comfortable in the short term but still fail to keep your spine aligned overnight. Look for a mattress that supports your spine’s alignment first, then narrow down options by comfort preference.
Is a spring mattress good for back pain?
Spring (innerspring) mattresses can work for back pain, but they generally offer less pressure relief than memory foam or latex. Many modern innerspring mattresses now include a foam or latex layer on top, which helps close this gap and improve support.
How often should I replace my mattress?
Most mattresses should be replaced every 7–10 years. If yours is older and you’re noticing morning stiffness or sagging, it may be time for a new one.