Products
Tested using Methodology v1.2
Updated Aug 13, 2026 06:38 PM
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Tested using Methodology v1.2
Updated Jul 27, 2026 04:12 PM
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Mattress Type
Foam
Bed-In-A-Box
Yes
Upper Comfort Foam @ LumbarMemory Foam
Firmness Level
Medium-Firm (50 Pa/mm)
Mattress Type
Hybrid
Bed-In-A-Box
Yes
Upper Comfort Foam @ LumbarMemory Foam
Firmness Level
Medium-Firm (54 Pa/mm)
Our Verdict
Nectar Classic
Allswell Hybrid
The Allswell Hybrid is better for most people than the Nectar Classic. The Allswell offers significantly better cooling and edge support, as well as better motion dissipation. It's more responsive and bouncy, which makes it easier to move around in your sleep. However, you might prefer the Nectar's hugging feel and more enveloping comfort layers.
Variants
- Classic (California King)
- Classic (Full)
- Hybrid (California King)
- Hybrid (Full)
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California King
Classic
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California King
Hybrid
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Full
Classic
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Full
Hybrid
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King
Classic
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King
Hybrid
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Queen
Classic
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Queen
Hybrid
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Twin
Classic
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Twin
Hybrid
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Twin XL
Classic
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Twin XL
Hybrid
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Main Differences for
Side Sleeping
Side Sleeping
Threshold
Side Sleeping
6.8
6.7
Full Comparison
Design
Style
Style Picture
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Mattress Type
Foam
Hybrid
Bed-In-A-Box
Yes
Yes
Quilted Top Layer
No
Yes
Grab Handles
No
No
Thickness
29.7 cm (11.7")
26.7 cm (10.5")
Performance
Firmness
Head/Feet Firmness
Preview Graph
Preview Graph
Lumbar Firmness
Preview Graph
Preview Graph
Firmness Video
Normalized Stiffness @ Head/Feet
50 Pa/mm
50 Pa/mm
Normalized Stiffness @ Lumbar
50 Pa/mm
54 Pa/mm
Firmness Level
Medium-Firm (50 Pa/mm)
Medium-Firm (54 Pa/mm)
Body Conformity
6.4
6.6
Shoulder Indentation vs. Body Weight
Preview Graph
Preview Graph
Body Conformity Picture
Indent @ 50 kg (110 lb)
35 mm (1.4")
36 mm (1.4")
Indent @ 80 kg (176 lb)
59 mm (2.3")
59 mm (2.3")
Indent @ 110 kg (242 lb)
75 mm (3.0")
79 mm (3.1")
Support
7.1
7.5
Pelvis Indentation vs. Body Weight
Preview Graph
Preview Graph
Indent Difference @ 50 kg (110 lb)
15 mm (0.6")
12 mm (0.5")
Indent Difference @ 80 kg (176 lb)
25 mm (1.0")
19 mm (0.7")
Indent Difference @ 110 kg (242 lb)
24 mm (0.9")
20 mm (0.8")
Bounciness
6.3
7.5
Bounciness Video
Maximum Rebound Height
9.0 cm (3.5")
16.0 cm (6.3")
Comfort Layers Envelopment
8.3
6.6
Sinking & Contouring Picture
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Sinking Depth
4.7 cm (1.8")
3.8 cm (1.5")
Diameter Of Distortion
23.1 cm (9.1")
25.8 cm (10.1")
Responsiveness
5.1
8.2
Responsiveness Video
Response Time
2.7 s
0.8 s
Motion Isolation
8.4
8.8
Motion Isolation Video
Head/Feet Motion Isolation
Preview Graph
Preview Graph
Lumbar Motion Isolation
Preview Graph
Preview Graph
Peak Acceleration @ Head/Feet
0.47 g
0.75 g
Dissipation Time @ Head/Feet
0.27 s
0.40 s
Peak Acceleration @ Lumbar
3.94 g
2.25 g
Dissipation Time @ Lumbar
0.22 s
0.33 s
Edge Support
6.2
8.6
Naturalistic Loading Pad Video
Naturalistic Loading Pad
Preview Graph
Preview Graph
Small Platen
Preview Graph
Preview Graph
Naturalistic Loading Pad Indentation
142 mm
116 mm
Small Platen Indentation @ 0 mm From Edge
181 mm
137 mm
Small Platen Indentation @ 150 mm From Edge
132 mm
114 mm
Increased Indentation @ Mattress Edge
48 mm
23 mm
Cooling
7.2
8.3
Cooling Graph
Preview Graph
Preview Graph
Energy Transferred Over 1st Hour
56 kJ
59 kJ
Energy Transferred Over 8 Hours
145 kJ
183 kJ
Components
Cover
Cover Picture
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Sleeping Surface Material
Not Provided by Manufacturer
Not Provided by Manufacturer
Removable
No
No
Machine Washable
No
No
Edge Construction
Edge Support Picture
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Edge Component
None
Pocket Coils
Foam Layer Material
Foam Layer Material Picture
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Quilted Top Fill
N/A
Polyfoam + Fiber Fill
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
N/A
Foam Layer Mass Density
5.7
6.0
Quilted Top Fill
N/A
22 kg/m³ (1.4 lb/cu.ft.)
Quilted Top Fill Foam Density vs. Reference
N/A
0.5
Upper Comfort Foam @ Head/Feet
32 kg/m³ (2.0 lb/cu.ft.)
36 kg/m³ (2.2 lb/cu.ft.)
Upper Comfort Foam @ Head/Feet Density vs. Reference
0.5
0.6
Upper Comfort Foam @ Lumbar
32 kg/m³ (2.0 lb/cu.ft.)
36 kg/m³ (2.2 lb/cu.ft.)
Upper Comfort Foam @ Lumbar Density vs. Reference
0.5
0.6
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
25 kg/m³ (1.5 lb/cu.ft.)
29 kg/m³ (1.8 lb/cu.ft.)
Transition Foam Density vs. Reference
0.7
0.9
Support Foam
26 kg/m³ (1.6 lb/cu.ft.)
N/A
Support Foam Density vs Reference
0.8
N/A
Foam Layer Thickness
Foam Layer Thickness Picture
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Quilted Top
N/A
3.0 cm (1.2")
Upper Comfort Foam @ Head/Feet
2.5 cm (1.0")
4.0 cm (1.6")
Upper Comfort Foam @ Lumbar
2.5 cm (1.0")
4.0 cm (1.6")
Lower Comfort Foam @ Head/Feet
N/A
N/A
Lower Comfort Foam @ Lumbar
N/A
N/A
Transition Foam
7.3 cm (2.9")
1.8 cm (0.7")
Support Foam
19.8 cm (7.8")
N/A
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
18.5 cm (7.3")
Support Layer Coil Density
N/A
233 coils/m² (22 coils/ft²)
Support Layer Coil Gauge @ Head/Feet
N/A
14 gauge
Support Layer Coil Gauge @ Lumbar
N/A
14 gauge
Foam Layer Firmness
Comfort Layer IPD
Preview Graph
Preview Graph
Transition & Support Layer IPD
Preview Graph
Preview Graph
Quilted Top Fill 25% IPD
N/A
2.9 kPa
Upper Comfort Foam @ Head/Feet 25% IPD
1.3 kPa
2.2 kPa
Upper Comfort Foam @ Lumbar 25% IPD
1.3 kPa
2.2 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
2.5 kPa
3.7 kPa
Support Foam 25% IPD
3.6 kPa
N/A
Spring Layer Firmness
Comfort Layer Firmness
Support Layer Firmness
Preview Graph
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
75 Pa/mm
Normalized Support Layer Stiffness @ Lumbar
N/A
76 Pa/mm
Foam Layer Resilience
Foam Layer Resilience Video
Quilted Top Fill
N/A
39%
Upper Comfort Foam @ Head/Feet
5%
12%
Upper Comfort Foam @ Lumbar
5%
12%
Lower Comfort Foam @ Head/Feet
N/A
N/A
Lower Comfort Foam @ Lumbar
N/A
N/A
Transition Foam
51%
45%
Support Foam
50%
N/A
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
34.0 cm (13.4")
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California King
Classic
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California King
Hybrid
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Full
Classic
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Full
Hybrid
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King
Classic
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King
Hybrid
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Queen
Classic
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Queen
Hybrid
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Twin
Classic
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Twin
Hybrid
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Twin XL
Classic
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Twin XL
Hybrid
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Nectar Classic
Allswell Hybrid
Comments
Nectar Classic vs Allswell Hybrid: Main Discussion
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