Products
Nectar Premier Copper
Novaform ComfortGrande Plus
Tested using Methodology v1.0.1
Updated Dec 12, 2025 03:50 PM
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Nectar
Tested using Methodology v1.1
Updated Dec 09, 2025 03:18 PM
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Mattress Type
Foam
Bounciness Level
Very Low (2 cm)
Upper Comfort Foam @ LumbarMemory Foam
Sinking Level
Moderate (5 cm)
Firmness Level
Medium-Plush (41 Pa/mm)
Contouring Level
Moderate (26 cm)
Mattress Type
Foam
Upper Comfort Foam @ LumbarMemory Foam
Firmness Level
Medium-Firm (52 Pa/mm)
Our Verdict
Nectar Premier Copper
Novaform ComfortGrande Plus
The Nectar Premier Copper and the Novaform ComfortGrande Plus are fairly well-matched foam mattresses. You may prefer either, depending on what's most important to you. The medium-plush Nectar has better responsiveness and edge support, making it easier to move around and get in and out of bed. The medium-firm Novaform, on the other hand, offers better motion isolation and keeps you cooler, making it a better choice if cooling is a priority for you or if you're a light sleeper.
Variants
- Premier Copper (Queen)
- ComfortGrande Plus (Queen)
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Queen
Premier Copper
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Nectar
Queen
ComfortGrande Plus
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Main Differences for
Sleeping (In Development)
Sleeping (In Development)
Threshold
Sleeping (In Development)
8.1
Full Comparison
Design
Style
Style Picture
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Mattress Type
Foam
Foam
Bed-In-A-Box
Yes
Yes
Quilted Top Layer
No
No
Grab Handles
No
Yes
Thickness
34.4 cm (13.5")
34.9 cm (13.7")
Performance
Firmness
Head/Feet Firmness
Lumbar Firmness
Firmness Video
Normalized Stiffness @ Head/Feet
42 Pa/mm
52 Pa/mm
Normalized Stiffness @ Lumbar
41 Pa/mm
52 Pa/mm
Firmness Level
Medium-Plush (41 Pa/mm)
Medium-Firm (52 Pa/mm)
Body Conformity
6.8
Shoulder Indentation vs. Body Weight
Indent @ 50 kg (110 lb)
40 mm (1.6")
Indent @ 80 kg (172 lb)
60 mm (2.4")
Indent @ 110 kg (242 lb)
75 mm (3.0")
Support
7.3
Pelvis Indentation vs. Body Weight
Indent Difference @ 50 kg (110 lb)
16 mm (0.6")
Indent Difference @ 80 kg (172 lb)
21 mm (0.8")
Indent Difference @ 110 kg (242 lb)
21 mm (0.8")
Bounciness
0.0
4.2
Bounciness Video
Maximum Rebound Height
2.0 cm (0.8")
4.0 cm (1.6")
Bounciness Level
Very Low (2 cm)
Comfort Layers Envelopment
0.0
7.3
Sinking & Contouring Picture
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Sinking Depth
4.6 cm (1.8")
4.8 cm (1.9")
Diameter Of Distortion
26.0 cm (10.2")
28.3 cm (11.1")
Sinking Level
Moderate (5 cm)
Contouring Level
Moderate (26 cm)
Responsiveness
9.1
6.9
Responsiveness Video
Response Time
0.5 s
1.4 s
Motion Isolation
8.6
9.2
Motion Isolation Video
Head/Feet Motion Isolation
Lumbar Motion Isolation
Peak Acceleration @ Head/Feet
0.56 g
0.58 g
Dissipation Time @ Head/Feet
0.22 s
0.25 s
Peak Acceleration @ Lumbar
3.10 g
1.97 g
Dissipation Time @ Lumbar
0.27 s
0.23 s
Edge Support
8.0
7.4
Naturalistic Loading Pad Video
Naturalistic Loading Pad
Small Platen
Naturalistic Loading Pad Indentation
144 mm
139 mm
Small Platen Indentation @ 0 mm From Edge
172 mm
157 mm
Small Platen Indentation @ 150 mm From Edge
154 mm
129 mm
Increased Indentation @ Mattress Edge
18 mm
29 mm
Cooling
7.3
7.7
Cooling Graph
Energy Transferred Over 1st Hour
59 kJ
64 kJ
Energy Transferred Over 8 Hours
147 kJ
157 kJ
Components
Cover
Cover Picture
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Sleeping Surface Material
Polyester, Nylon, Polyethylene, Copper-Infused Polyester
Polyester, Nylon, Polyethylene, Spandex
Removable
No
No
Machine Washable
No
No
Edge Construction
Edge Support Picture
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Edge Component
None
None
Foam Layer Material
Foam Layer Material Picture
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Quilted Top Fill
N/A
N/A
Upper Comfort Foam @ Head/Feet
Memory Foam
Memory Foam
Upper Comfort Foam @ Lumbar
Memory Foam
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
Foam Layer Mass Density
6.2
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
36 kg/m³ (2.2 lb/cu.ft.)
50 kg/m³ (3.1 lb/cu.ft.)
Upper Comfort Foam @ Head/Feet Density vs. Reference
0.6
0.8
Upper Comfort Foam @ Lumbar
36 kg/m³ (2.2 lb/cu.ft.)
50 kg/m³ (3.1 lb/cu.ft.)
Upper Comfort Foam @ Lumbar Density vs. Reference
0.6
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
28 kg/m³ (1.7 lb/cu.ft.)
28 kg/m³ (1.8 lb/cu.ft.)
Support Foam Density vs Reference
0.9
0.9
Foam Layer Thickness
Foam Layer Thickness Picture
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Quilted Top
N/A
N/A
Upper Comfort Foam @ Head/Feet
10.0 cm (3.9")
7.5 cm (3.0")
Upper Comfort Foam @ Lumbar
10.0 cm (3.9")
7.5 cm (3.0")
Lower Comfort Foam @ Head/Feet
N/A
N/A
Lower Comfort Foam @ Lumbar
N/A
N/A
Transition Foam
7.0 cm (2.8")
7.0 cm (2.8")
Support Foam
17.5 cm (6.9")
21.0 cm (8.3")
Spring Layer Dimensions
Spring Layer Height Picture
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Spring Layer Density Picture
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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
Transition & Support Layer IPD
Quilted Top Fill 25% IPD
N/A
N/A
Upper Comfort Foam @ Head/Feet 25% IPD
1.9 kPa
2.0 kPa
Upper Comfort Foam @ Lumbar 25% IPD
1.9 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
2.6 kPa
3.0 kPa
Support Foam 25% IPD
5.0 kPa
4.1 kPa
Spring Layer Firmness
Comfort Layer Firmness
Support Layer Firmness
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
16%
4%
Upper Comfort Foam @ Lumbar
16%
4%
Lower Comfort Foam @ Head/Feet
N/A
N/A
Lower Comfort Foam @ Lumbar
N/A
N/A
Transition Foam
41%
40%
Support Foam
38%
43%
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
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Queen
Premier Copper
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Queen
ComfortGrande Plus
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Nectar Premier Copper vs Novaform ComfortGrande Plus: Main Discussion
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