Products
Sealy Posturepedic Plus Mount Auburn
Novaform Legacy
Tested using Methodology v1.0.1
Updated Oct 23, 2025 01:10 PM
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Sealy
Tested using Methodology v1.0.1
Updated Oct 22, 2025 10:38 PM
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Novaform
Mattress Type
Hybrid
Bounciness Level
Moderate (14 cm)
Sinking Level
Moderate (5 cm)
Firmness Level
Medium-Firm (56 Pa/mm)
Contouring Level
Low (30 cm)
Mattress Type
Hybrid
Bounciness Level
Moderate (16 cm)
Sinking Level
Low (4 cm)
Firmness Level
Firm (62 Pa/mm)
Contouring Level
Very High (22 cm)
Our Verdict
Sealy Posturepedic Plus Mount Auburn
Novaform Legacy
The Sealy Posturepedic Plus Mount Auburn and the Novaform Legacy have different strengths. The Novaform is more cooling, so it's a better option for hot sleepers. It also offers a better motion dissipation performance, so movement is less likely to wake you up. Its more responsive feel also makes it easier to move around in your sleep. That said, the Sealy has significantly better edge support, which makes getting in and out of bed easier, especially for people with mobility issues.
Variants
- Posturepedic Plus Mount Auburn (Queen)
- Legacy (Queen)
Check Price
Queen
Posturepedic Plus Mount Auburn
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Sealy
Queen
Legacy
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Novaform
Main Differences for
Sleeping (In Development)
Sleeping (In Development)
Threshold
Sleeping (In Development)
8.1
7.8
Edge Support
9.9
5.5
Cooling
7.6
8.0
Motion Isolation
7.7
8.8
Responsiveness
6.9
9.7
Full Comparison
Design
Style
Style Picture
Mattress Type
Hybrid
Hybrid
Bed-In-A-Box
No
Yes
Quilted Top Layer
Yes
Yes
Grab Handles
Yes
Yes
Thickness
33.8 cm (13.3")
35.5 cm (14.0")
Performance
Firmness
Head/Feet Firmness
Lumbar Firmness
Firmness Video
Normalized Stiffness @ Head/Feet
61 Pa/mm
70 Pa/mm
Normalized Stiffness @ Lumbar
56 Pa/mm
62 Pa/mm
Firmness Level
Medium-Firm (56 Pa/mm)
Firm (62 Pa/mm)
Bounciness
Bounciness Video
Maximum Rebound Height
14.5 cm (5.7")
16.0 cm (6.3")
Bounciness Level
Moderate (14 cm)
Moderate (16 cm)
Sinking & Contouring
Sinking & Contouring Picture
Sinking Depth
5.2 cm (2.0")
4.4 cm (1.7")
Diameter Of Distortion
29.7 cm (11.7")
22.5 cm (8.9")
Sinking Level
Moderate (5 cm)
Low (4 cm)
Contouring Level
Low (30 cm)
Very High (22 cm)
Responsiveness
6.9
9.7
Responsiveness Video
Response Time
1.4 s
0.2 s
Motion Isolation
7.7
8.8
Motion Isolation Video
Head/Feet Motion Isolation
Lumbar Motion Isolation
Peak Acceleration @ Head/Feet
2.59 g
0.84 g
Dissipation Time @ Head/Feet
0.44 s
0.28 s
Peak Acceleration @ Lumbar
3.47 g
2.51 g
Dissipation Time @ Lumbar
0.40 s
0.29 s
Edge Support
9.9
5.5
Naturalistic Loading Pad Video
Naturalistic Loading Pad
Small Platen
Naturalistic Loading Pad Indentation
105 mm
142 mm
Small Platen Indentation @ 0 mm From Edge
117 mm
187 mm
Small Platen Indentation @ 150 mm From Edge
113 mm
124 mm
Increased Indentation @ Mattress Edge
4 mm
63 mm
Cooling
7.6
8.0
Cooling Graph
Energy Transferred Over 1st Hour
58 kJ
65 kJ
Energy Transferred Over 8 Hours
160 kJ
172 kJ
Components
Cover
Cover Picture
Sleeping Surface Material
Not Provided by Manufacturer
Polyester, Olefin, Spandex
Removable
No
Yes
Machine Washable
No
No
Edge Construction
Edge Support Picture
Edge Component
Pocket Coils
Polyfoam
Foam Layer Material
Foam Layer Material Picture
Quilted Top Fill
Memory Foam + Polyfoam + Fiber Fill
Polyfoam + Fiber Fill
Upper Comfort Foam @ Head/Feet
N/A
Memory Foam
Upper Comfort Foam @ Lumbar
N/A
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
N/A
N/A
Foam Layer Mass Density
5.3
6.6
Quilted Top Fill
39 kg/m³ (2.4 lb/cu.ft.)
22 kg/m³ (1.4 lb/cu.ft.)
Quilted Top Fill Foam Density vs. Reference
0.6
0.5
Upper Comfort Foam @ Head/Feet
N/A
62 kg/m³ (3.8 lb/cu.ft.)
Upper Comfort Foam @ Head/Feet Density vs. Reference
N/A
1.0
Upper Comfort Foam @ Lumbar
N/A
62 kg/m³ (3.8 lb/cu.ft.)
Upper Comfort Foam @ Lumbar Density vs. Reference
N/A
1.0
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
24 kg/m³ (1.5 lb/cu.ft.)
30 kg/m³ (1.9 lb/cu.ft.)
Transition Foam Density vs. Reference
0.6
1.0
Support Foam
N/A
N/A
Support Foam Density vs Reference
N/A
N/A
Foam Layer Thickness
Foam Layer Thickness Picture
Quilted Top
7.7 cm (3.0")
5.4 cm (2.1")
Upper Comfort Foam @ Head/Feet
N/A
5.8 cm (2.3")
Upper Comfort Foam @ Lumbar
N/A
5.8 cm (2.3")
Lower Comfort Foam @ Head/Feet
N/A
N/A
Lower Comfort Foam @ Lumbar
N/A
N/A
Transition Foam
4.8 cm (1.9")
6.9 cm (2.7")
Support Foam
N/A
N/A
Spring Layer Dimensions
Spring Layer Height Picture
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
21.0 cm (8.3")
17.0 cm (6.7")
Support Layer Coil Density
297 coils/m² (28 coils/ft²)
265 coils/m² (25 coils/ft²)
Support Layer Coil Gauge @ Head/Feet
15 gauge
13 gauge
Support Layer Coil Gauge @ Lumbar
15 gauge
14 gauge
Foam Layer Firmness
Comfort Layer IPD
Transition & Support Layer IPD
Quilted Top Fill 25% IPD
1.3 kPa
2.2 kPa
Upper Comfort Foam @ Head/Feet 25% IPD
N/A
4.2 kPa
Upper Comfort Foam @ Lumbar 25% IPD
N/A
4.2 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
6.6 kPa
2.9 kPa
Support Foam 25% IPD
N/A
N/A
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
61 Pa/mm
103 Pa/mm
Normalized Support Layer Stiffness @ Lumbar
63 Pa/mm
106 Pa/mm
Foam Layer Resilience
Foam Layer Resilience Video
Quilted Top Fill
7%
48%
Upper Comfort Foam @ Head/Feet
N/A
3%
Upper Comfort Foam @ Lumbar
N/A
3%
Lower Comfort Foam @ Head/Feet
N/A
N/A
Lower Comfort Foam @ Lumbar
N/A
N/A
Transition Foam
39%
47%
Support Foam
N/A
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
42.0 cm (16.5")
48.0 cm (18.9")
Check Price
Queen
Posturepedic Plus Mount Auburn
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Sealy
Queen
Legacy
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Novaform
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Sealy Posturepedic Plus Mount Auburn vs Novaform Legacy: Main Discussion
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