When it comes to buying a mattress, one of the most important decisions is firmness. It determines how your mattress feels, how well it supports your body, and even how you sleep throughout the night. But with so many options – from soft to medium to firm – how do you know which is right for you?
This guide explains mattress firmness levels, what they mean, and how to pick the best firmness for your sleep style and health.
What Does Mattress Firmness Mean?
Mattress firmness refers to how soft or hard a mattress feels when you lie on it. It’s usually rated on a 1–10 firmness scale:
• 1–3 (Soft): Plush and cushioned, allows you to sink in deeply.
• 4–6 (Medium / Medium-Firm): Balanced comfort and support, the most popular choice.
• 7–10 (Firm): Provides strong support with minimal sinkage.
Soft Mattresses (1–3)
Soft mattresses contour closely to the body, creating a “hugging” feeling.
Best for:
• Side sleepers who need pressure relief on shoulders and hips
• Lightweight sleepers who don’t put much pressure on the mattress
Not ideal for:
• Back and stomach sleepers, as they may sink too deeply and lack support
Medium & Medium-Firm Mattresses (4–6)
This is the most recommended firmness level for all-around comfort and support. Medium-firm mattresses adapt to the body while keeping the spine aligned.
Best for:
• Couples with different sleeping preferences
• Back sleepers who need balanced support
• Most body types
This is also the firmness level offered by many organic latex mattresses, like the Naturalist Mattress, because it combines resilience with comfort.
Firm Mattresses (7–10)
Firm mattresses offer strong support and prevent excessive sinkage.
Best for:
• Stomach sleepers who need to keep their hips lifted
• Heavyweight sleepers who require more support
• People with certain back pain issues that improve with a firmer surface
Not ideal for:
• Side sleepers, as they may feel too much pressure on joints
How to Choose the Right Mattress Firmness
Your ideal firmness depends on three key factors:
1. Sleeping Position
• Side sleepers → Softer to medium
• Back sleepers → Medium to medium-firm
• Stomach sleepers → Firm
2. Body Weight
• Lighter than 60 kg → Softer may feel more comfortable
• 60–100 kg → Medium or medium-firm is ideal
• Over 100 kg → Firmer support prevents sinking
3. Personal Preference & Health
Some people prefer a plush, cloud-like feel; others want strong support. If you suffer from back pain, a medium-firm mattress is often recommended by experts.
Why Mattress Firmness Matters
The right firmness ensures:
• Proper spinal alignment
• Reduced pressure points
• Better sleep quality
• Long-term comfort and durability
When choosing, always look for mattresses with natural, breathable materials. The Naturalist Mattress uses organic latex, cotton, wool, and coconut coir – offering modular layers that can be adjusted for firmness at home.
Choosing the right mattress firmness is one of the most important steps toward healthier, more restorative sleep. Think about your sleeping position, body weight, and comfort preferences to guide your choice.
And remember – with an organic, modular mattress, you don’t have to commit forever. You can adjust the firmness as your needs change, ensuring comfort for years to come.