8 min read
The Mattress Firmness Scale
The mattress industry uses a 1–10 firmness scale where 1 is the softest possible and 10 is the firmest. In practice, almost no mattresses sold in Canada fall below a 2 or above an 8 on this scale, the extremes are uncomfortable for most sleepers.
Common firmness labels and their approximate positions on this scale:
- Ultra plush / Extra soft: 1–3. Very deep sink. Most people find these too soft for sustained support.
- Plush / Soft: 3–5. Noticeable softness with body contouring. Good for side sleepers.
- Medium plush: 4–6. The most popular range. Balances softness and support.
- Medium / Medium firm: 5–7. Firmer initial feel. Most versatile for different sleep positions.
- Firm: 7–9. Minimal give. Best for stomach sleepers and heavier-weight back sleepers.
What Plush Actually Feels Like
A plush mattress gives you the sensation of sinking in gently when you first lie down. Your body contours into the surface rather than resting on top of it. Pressure points, hips, shoulders, are cushioned rather than pressing against a firm surface.
Importantly, a good plush mattress is not soft all the way through. The comfort layers (top 5–10 cm of the mattress) are soft and conforming. The support layers underneath are firmer to prevent excessive sinking and maintain spinal alignment. The goal is surface softness over structural support, the hug without the hammock.
Plush vs Medium vs Firm
| Firmness | Feel | Best Sleep Position | Best Body Weight |
|---|---|---|---|
| Plush (3–5) | Soft, contouring, sink-in feel | Side sleepers | Under 75 kg |
| Medium (5–6) | Balanced, some give, some firmness | Back, combo sleepers | 60–100 kg |
| Medium firm (6–7) | Mostly firm with minor cushioning | Back, stomach sleepers | 75–120 kg |
| Firm (7–9) | Minimal give, lies-on-top feel | Stomach, heavy back sleepers | 90 kg+ |
Body weight is a significant factor because it determines how much you compress the comfort layers. A 60 kg person on a plush mattress sinks in gently, the softness stays apparent. A 100 kg person on the same mattress compresses through the comfort layers more deeply, potentially losing the support benefits of the firmer core underneath. Heavier sleepers typically need to go one or two levels firmer than their initial preference suggests.
Plush vs Pillow Top
Plush and pillow top are often confused because both feel soft. The construction difference is significant:
Plush mattress: The softness comes from integrated comfort layers within the mattress construction, foam, latex, or fibrefill layers sewn into the top of the mattress. There's no visible separate section. The softness is part of the mattress, not on top of it.
Pillow top mattress: A distinct layer of additional cushioning material is sewn onto the top of the mattress, visibly set apart. You can see the seam where the pillow top attaches. Pillow tops often feel softer initially but have a tendency to compress and create body impressions over time, since the attached layer doesn't have the structural integration of comfort layers within the mattress.
Euro top is a variation where the additional layer is sewn flush with the mattress edges rather than raised, creating a cleaner look while still adding softness at the top.
Who Plush Suits
Plush mattresses work best for:
- Side sleepers: The most consistent recommendation. Side sleepers need their shoulder and hip to sink in to maintain a straight spinal alignment. A firm mattress under a side sleeper pushes up against the shoulder without allowing it to sink, the neck tilts down and the spine bends laterally. Plush allows the shoulder and hip to sink while supporting the waist.
- Lighter-weight sleepers (under 65–70 kg): Don't compress soft foam as deeply, so the supportive core remains effective.
- People without existing back pain: If back pain is already present, start with medium-firm before deciding whether softer is better for your specific situation.
- Those who run cold: Plush mattresses often use foam or fibrefill comfort layers that retain heat. Not ideal for hot sleepers.
Plush mattresses are generally not recommended for stomach sleepers at any weight, a soft surface allows the hips to sink deeper than the shoulders, creating a spinal hyperextension that contributes to lower back pain. See our stomach sleeping guide for details.
Why "Plush" Means Different Things at Different Stores
The mattress industry has no standardized firmness scale. A "plush" mattress at Sleep Country may feel different from a "plush" mattress at Mattress Miracle or The Brick. Each manufacturer sets their own scale, and since the labels aren't regulated, a brand that sells to price-conscious buyers may label a medium mattress as "plush" to meet customer softness expectations.
Frequently Asked Questions
Shop: Plush Mattresses at Mattress Miracle
Find Your Perfect Mattress at Mattress Miracle
We are a family-owned mattress store in Brantford, helping our community sleep better since 1997. Come try mattresses in person and get honest, no-pressure advice.
441 1/2 West Street, Brantford, Ontario
Call 519-770-0001What does plush mean on a mattress?
Plush means soft to medium-soft, approximately 3–5 on a 1–10 firmness scale. The mattress has a noticeable initial softness where your body contours into the surface, while retaining firmer support layers underneath. Best for side sleepers and lighter-weight adults who need pressure point relief.
Is plush or firm better for back pain?
For most back pain situations, medium-firm is the better starting point. A plush mattress may allow heavier body parts (hips for back sleepers, hips and shoulders for side sleepers) to sink in unevenly, disrupting spinal alignment. However, side sleepers with shoulder or hip pain sometimes do better on plush. The right firmness depends on sleep position, body weight, and pain location, there's no universal answer. A mattress fitting at Mattress Miracle can help narrow it down.
What is the difference between plush and pillow top?
Both feel soft but differ in construction. Plush mattresses have softness integrated into the comfort layers within the mattress. Pillow tops have a visible separate layer sewn onto the top. Pillow tops often feel softer initially but create body impressions faster over time. Plush constructions typically age more consistently.
Who should buy a plush mattress?
Side sleepers under 75 kg are the clearest fit for plush. Heavier sleepers on plush may compress through the comfort layers and lose the support benefit. Back and stomach sleepers of any weight are typically better served by medium or firm options. If you're uncertain, try lying in your actual sleep position for 5+ minutes on each firmness level, your body will usually tell you.
Shop This Topic at Mattress Miracle
Here are the firm mattresses we carry at Mattress Miracle:
- Sentora Ultra Firm Mattress
- Spinal Rest Firm Mattress
- Sydney TT Firm Euro Top Mattress
- High Density Firm Mattress
Or firm mattresses in our Brantford showroom.
Related Reading
- How to Choose a Mattress: Complete Canadian Buying Guide
- How to Sleep on Your Side Without Hurting Your Shoulder
- What Mattress Is Right for Me? Guide by Sleep Position
- Best Mattress Canada 2026: Expert Picks
Not Sure If Plush Is Right for You?
Mattress Miracle
441 1/2 West Street, Brantford
Phone: (519) 770-0001
Hours: Mon-Wed 10-6, Thu-Fri 10-7, Sat 10-5, Sun 12-4
Come in and try the different firmness levels in your actual sleep position. We'll tell you honestly which one fits your body, including if the plush you thought you wanted isn't actually what you need.
Brad, Owner, 40+ years of experience: "People come in asking for plush because soft sounds better. But a lot of them are actually better on a medium. The issue is that soft feels good when you sit on it for 30 seconds, your hips don't have a chance to sink through. Lie on it properly for 5 minutes and you start to feel whether it's actually supporting your spine. That's why we always have people actually lie on the mattress."