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  1. Home
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Purple Mattress vs Novaform ComfortGrande Plus

Which Mattress Is Better?

    Top
    Main Differences
    Design
      Style
    Performance
      FirmnessBouncinessSinking & ContouringResponsivenessMotion IsolationEdge SupportCooling
    Components
      CoverEdge ConstructionFoam Layer MaterialFoam Layer Mass DensityFoam Layer ThicknessSpring Layer DimensionsFoam Layer FirmnessSpring Layer FirmnessFoam Layer ResilienceSpring Layer Bounciness
    Comments

Products

Purple Mattress
Novaform ComfortGrande Plus

Tested using Methodology v1.0.1

Updated Nov 25, 2025 10:46 PM

SEE PRICE
Purple

Tested using Methodology v1.0.1

Updated Oct 31, 2025 05:33 PM

SEE PRICE
Novaform
Purple Mattress Picture
Novaform ComfortGrande Plus Picture
Mattress Type
Foam
Bounciness Level
Moderate (14 cm)
Sinking Level
Low (3 cm)
Firmness Level
Medium-Firm (51 Pa/mm)
Contouring Level
Very High (23 cm)
Mattress Type
Foam
Bounciness Level
Very Low (4 cm)
Sinking Level
Moderate (5 cm)
Firmness Level
Medium-Firm (52 Pa/mm)
Contouring Level
Moderate (28 cm)
  1. Recommended in 3 articles:
  2. Mattresses
  3. Firm
  4. Cooling

Our Verdict

Purple Mattress

Novaform ComfortGrande Plus

You might prefer either the Purple Mattress or the Novaform ComfortGrande Plus. Both are medium-firm and best suited for light and average back and stomach sleepers. The Novaform uses memory foam, so it contours but moves slowly. It offers better motion isolation, making it much better for sleeping with a partner. The Purple is very responsive, so you never feel stuck in place. It stands out for its fantastic cooling and is a much better option for hot sleepers.

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Variants

  • Mattress (Queen)
  • ComfortGrande Plus (Queen)

Review

See Purple Mattress Review
See Novaform ComfortGrande Plus Review
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0 

Check Price

Queen
Mattress
SEE PRICE
Purple
Queen
ComfortGrande Plus
SEE PRICE
Novaform

Main Differences for
Sleeping (In Development)

Threshold 

0.10

Sleeping (In Development) 

8.6
7.9

Cooling 
 

9.7
7.7

Motion Isolation 
 

7.7
9.2

Responsiveness 
 

9.8
6.9

Full Comparison

Design

Style 
 

Style Picture  

Purple Mattress Style Picture
Novaform ComfortGrande Plus Style Picture

Mattress Type 
 

Foam
Foam

Bed-In-A-Box 
 

Yes
Yes

Quilted Top Layer 
 

No
No

Grab Handles 
 

No
Yes

Thickness  

23.4 cm (9.2")
34.9 cm (13.7")
Show Text 
Performance

Firmness 
 

Head/Feet Firmness  

See details
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Lumbar Firmness  

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Firmness Video  

Normalized Stiffness @ Head/Feet 
 

46 Pa/mm
52 Pa/mm

Normalized Stiffness @ Lumbar 
 

51 Pa/mm
52 Pa/mm

Firmness Level 
 

Medium-Firm (51 Pa/mm)
Medium-Firm (52 Pa/mm)
Show Text 

Bounciness 
 

Bounciness Video  

Maximum Rebound Height 
 

13.5 cm (5.3")
4.0 cm (1.6")

Bounciness Level 
 

Moderate (14 cm)
Very Low (4 cm)
Show Text 

Sinking & Contouring 
 

Sinking & Contouring Picture  

Purple Mattress Sinking & Contouring Picture
Novaform ComfortGrande Plus Sinking & Contouring Picture

Sinking Depth 
 

3.5 cm (1.4")
4.8 cm (1.9")

Diameter Of Distortion 
 

22.7 cm (8.9")
28.3 cm (11.1")

Sinking Level 
 

Low (3 cm)
Moderate (5 cm)

Contouring Level 
 

Very High (23 cm)
Moderate (28 cm)
Show Text 

Responsiveness 
 

9.8
6.9

Responsiveness Video  

Response Time 
 

0.2 s
1.4 s
Show Text 

Motion Isolation 
 

7.7
9.2

Motion Isolation Video  

Head/Feet Motion Isolation  

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Lumbar Motion Isolation  

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Peak Acceleration @ Head/Feet 
 

0.84 g
0.58 g

Dissipation Time @ Head/Feet 
 

0.51 s
0.25 s

Peak Acceleration @ Lumbar 
 

4.05 g
1.97 g

Dissipation Time @ Lumbar 
 

0.42 s
0.23 s
Show Text 

Edge Support 
 

7.3
7.4

Naturalistic Loading Pad Video  

Naturalistic Loading Pad  

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Small Platen  

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Naturalistic Loading Pad Indentation 
 

133 mm
139 mm

Small Platen Indentation @ 0 mm From Edge 
 

168 mm
157 mm

Small Platen Indentation @ 150 mm From Edge 
 

135 mm
129 mm

Increased Indentation @ Mattress Edge 
 

33 mm
29 mm
Show Text 

Cooling 
 

9.7
7.7

Cooling Graph  

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Energy Transferred Over 1st Hour 
 

109 kJ
64 kJ

Energy Transferred Over 8 Hours 
 

218 kJ
157 kJ
Show Text 
Components

Cover 
 

Cover Picture  

Purple Mattress Cover Picture
Novaform ComfortGrande Plus Cover Picture

Sleeping Surface Material 
 

Polyester, Spandex
Polyester, Nylon, Polyethylene, Spandex

Removable 
 

Yes
No

Machine Washable 
 

No
No
Show Text 

Edge Construction 
 

Edge Support Picture  

Purple Mattress Edge Support Picture
Novaform ComfortGrande Plus Edge Support Picture

Edge Component 
 

Polyfoam
None
Show Text 

Foam Layer Material 
 

Foam Layer Material Picture  

Purple Mattress Foam Layer Material Picture
Novaform ComfortGrande Plus Foam Layer Material Picture

Quilted Top Fill  

N/A
N/A

Upper Comfort Foam @ Head/Feet  

Elastic Polymer Grid
Memory Foam

Upper Comfort Foam @ Lumbar  

Elastic Polymer Grid
Memory Foam

Lower Comfort Foam @ Head/Feet  

N/A
N/A

Lower Comfort Foam @ Lumbar  

N/A
N/A

Transition Foam  

Polyfoam
Polyfoam

Support Foam  

Polyfoam
Polyfoam
Show Text 

Foam Layer Mass Density 
 

7.1
6.9

Quilted Top Fill  

N/A
N/A

Quilted Top Fill Foam Density vs. Reference 
 

N/A
N/A

Upper Comfort Foam @ Head/Feet  

744 kg/m³ (46.4 lb/cu.ft.)
50 kg/m³ (3.1 lb/cu.ft.)

Upper Comfort Foam @ Head/Feet Density vs. Reference 
 

2.3
0.8

Upper Comfort Foam @ Lumbar  

744 kg/m³ (46.4 lb/cu.ft.)
50 kg/m³ (3.1 lb/cu.ft.)

Upper Comfort Foam @ Lumbar Density vs. Reference 
 

2.3
0.8

Lower Comfort Foam @ Head/Feet  

N/A
N/A

Lower Comfort Foam @ Head/Feet Density vs. Reference 
 

N/A
N/A

Lower Comfort Foam @ Lumbar  

N/A
N/A

Lower Comfort Foam @ Lumbar Density vs. Reference 
 

N/A
N/A

Transition Foam  

27 kg/m³ (1.7 lb/cu.ft.)
36 kg/m³ (2.3 lb/cu.ft.)

Transition Foam Density vs. Reference 
 

0.8
1.4

Support Foam  

32 kg/m³ (2.0 lb/cu.ft.)
28 kg/m³ (1.8 lb/cu.ft.)

Support Foam Density vs Reference 
 

1.1
0.9
Show Text 

Foam Layer Thickness 
 

Foam Layer Thickness Picture  

Purple Mattress Foam Layer Thickness Picture
Novaform ComfortGrande Plus Foam Layer Thickness Picture

Quilted Top 
 

N/A
N/A

Upper Comfort Foam @ Head/Feet  

5.1 cm (2.0")
7.5 cm (3.0")

Upper Comfort Foam @ Lumbar  

5.1 cm (2.0")
7.5 cm (3.0")

Lower Comfort Foam @ Head/Feet  

N/A
N/A

Lower Comfort Foam @ Lumbar  

N/A
N/A

Transition Foam  

8.4 cm (3.3")
7.0 cm (2.8")

Support Foam  

10.1 cm (4.0")
21.0 cm (8.3")
Show Text 

Spring Layer Dimensions 
 

Spring Layer Height Picture  

Purple Mattress Spring Layer Height Picture
Novaform ComfortGrande Plus Spring Layer Height Picture

Spring Layer Density Picture  

Purple Mattress Spring Layer Density Picture
Novaform ComfortGrande Plus Spring Layer Density Picture

Comfort Layer Height 
 

N/A
N/A

Comfort Layer Coil Density 
 

N/A
N/A

Comfort Layer Coil Gauge 
 

N/A
N/A

Support Layer Height 
 

N/A
N/A

Support Layer Coil Density 
 

N/A
N/A

Support Layer Coil Gauge @ Head/Feet 
 

N/A
N/A

Support Layer Coil Gauge @ Lumbar 
 

N/A
N/A

Foam Layer Firmness 
 

Comfort Layer IPD  

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Transition & Support Layer IPD  

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Quilted Top Fill 25% IPD 
 

N/A
N/A

Upper Comfort Foam @ Head/Feet 25% IPD 
 

2.7 kPa
2.0 kPa

Upper Comfort Foam @ Lumbar 25% IPD 
 

2.7 kPa
2.0 kPa

Lower Comfort Foam @ Head/Feet 25% IPD 
 

N/A
N/A

Lower Comfort Foam @ Lumbar 25% IPD 
 

N/A
N/A

Transition Foam 25% IPD 
 

2.4 kPa
3.0 kPa

Support Foam 25% IPD 
 

4.1 kPa
4.1 kPa
Show Text 

Spring Layer Firmness 
 

Comfort Layer Firmness  

Purple Mattress Comfort Layer Firmness
Novaform ComfortGrande Plus Comfort Layer Firmness
 Compare in Graph Tool

Support Layer Firmness  

Purple Mattress Support Layer Firmness
Novaform ComfortGrande Plus Support Layer Firmness
 Compare in Graph Tool

Spring Layer Firmness  

Normalized Comfort Layer Stiffness @ Head/Feet 
 

N/A
N/A

Normalized Comfort Layer Stiffness @ Lumbar 
 

N/A
N/A

Normalized Support Layer Stiffness @ Head/Feet 
 

N/A
N/A

Normalized Support Layer Stiffness @ Lumbar 
 

N/A
N/A

Foam Layer Resilience 
 

Foam Layer Resilience Video  

Quilted Top Fill  

N/A
N/A

Upper Comfort Foam @ Head/Feet  

N/A
4%

Upper Comfort Foam @ Lumbar  

N/A
4%

Lower Comfort Foam @ Head/Feet  

N/A
N/A

Lower Comfort Foam @ Lumbar  

N/A
N/A

Transition Foam  

49%
40%

Support Foam  

43%
43%
Show Text 

Spring Layer Bounciness 
 

Comfort Spring Layer Bounciness Video  

Support Spring Layer Bounciness Video  

Comfort Spring Layer Maximum Rebound Height 
 

N/A
N/A

Support Spring Layer Maximum Rebound Height 
 

N/A
N/A

Check Price

Queen
Mattress
SEE PRICE
Purple
Queen
ComfortGrande Plus
SEE PRICE
Novaform
Back to Top

Purple Mattress

Novaform ComfortGrande Plus

Comments

  1. Comparison
 • Posted 3 months ago

Purple Mattress vs Novaform ComfortGrande Plus: Main Discussion

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