Products
Helix Midnight 2024
Sealy Posturepedic Hybrid
Tested using Methodology v1.0.1
Updated Oct 03, 2025 07:08 PM
SEE PRICE
Helix
Tested using Methodology v1.0.1
Updated Oct 03, 2025 07:12 PM
SEE PRICE
Sealy
Mattress Type
Hybrid
Bounciness Level
Moderate (16 cm)
Sinking Level
Low (4 cm)
Firmness Level
Medium (45 Pa/mm)
Contouring Level
Moderate (26 cm)
Mattress Type
Hybrid
Bounciness Level
Moderate (17 cm)
Sinking Level
Moderate (5 cm)
Firmness Level
Medium-Plush (38 Pa/mm)
Contouring Level
Moderate (28 cm)
Our Verdict
Helix Midnight 2024
Sealy Posturepedic Hybrid
The Sealy Posturepedic Hybrid and the Helix Midnight 2024 are evenly matched overall, but they have different strengths, and you may prefer either depending on your priorities. The medium-plush Sealy has better motion dissipation, so it's the better bet if you have a sleeping partner who tosses and turns. It's also more responsive, making it easier to move around. The Helix has a medium level of firmness. It comes out ahead in terms of edge support, making it even more comfortable to sleep next to the sides. The Helix is slightly more cooling, too, though neither option is ideal for hot sleepers.
Variants
- Midnight 2024 (Queen)
- Posturepedic Hybrid (Queen (Soft))
Main Differences for
Sleeping (In Development)
Sleeping (In Development)
Threshold
Sleeping (In Development)
8.2
8.3
Edge Support
9.6
9.0
Full Comparison
Design
Style
Style Picture
Mattress Type
Hybrid
Hybrid
Bed-In-A-Box
Yes
No
Quilted Top Layer
No
No
Grab Handles
No
No
Thickness
29.8 cm (11.7")
34.5 cm (13.6")
Performance
Firmness
Head/Feet Firmness
Lumbar Firmness
Firmness Video
Normalized Stiffness @ Head/Feet
43 Pa/mm
39 Pa/mm
Normalized Stiffness @ Lumbar
45 Pa/mm
38 Pa/mm
Firmness Level
Medium (45 Pa/mm)
Medium-Plush (38 Pa/mm)
Bounciness
Bounciness Video
Maximum Rebound Height
16.0 cm (6.3")
17.0 cm (6.7")
Bounciness Level
Moderate (16 cm)
Moderate (17 cm)
Sinking & Contouring
Sinking & Contouring Picture
Sinking Depth
4.4 cm (1.7")
4.9 cm (1.9")
Diameter Of Distortion
25.9 cm (10.2")
27.8 cm (10.9")
Sinking Level
Low (4 cm)
Moderate (5 cm)
Contouring Level
Moderate (26 cm)
Moderate (28 cm)
Responsiveness
8.1
8.5
Responsiveness Video
Response Time
0.9 s
0.7 s
Motion Isolation
7.4
8.0
Motion Isolation Video
Head/Feet Motion Isolation
Lumbar Motion Isolation
Peak Acceleration @ Head/Feet
2.17 g
0.69 g
Dissipation Time @ Head/Feet
0.53 s
0.36 s
Peak Acceleration @ Lumbar
3.68 g
4.16 g
Dissipation Time @ Lumbar
0.55 s
0.32 s
Edge Support
9.6
9.0
Naturalistic Loading Pad Video
Naturalistic Loading Pad
Small Platen
Naturalistic Loading Pad Indentation
117 mm
133 mm
Small Platen Indentation @ 0 mm From Edge
140 mm
160 mm
Small Platen Indentation @ 150 mm From Edge
136 mm
155 mm
Increased Indentation @ Mattress Edge
4 mm
4 mm
Cooling
7.9
7.8
Cooling Graph
Energy Transferred Over 1st Hour
58 kJ
61 kJ
Energy Transferred Over 8 Hours
174 kJ
167 kJ
Components
Cover
Cover Picture
Sleeping Surface Material
Not Provided by Manufacturer
Not Provided by Manufacturer
Removable
No
No
Machine Washable
No
No
Edge Construction
Edge Support Picture
Edge Component
Pocket Coils
Pocket Coils
Foam Layer Material
Foam Layer Material Picture
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
Polyfoam
N/A
Lower Comfort Foam @ Lumbar
Polyfoam
N/A
Transition Foam
Polyfoam
Polyfoam
Support Foam
N/A
N/A
Foam Layer Mass Density
5.4
2.9
Quilted Top Fill
N/A
N/A
Quilted Top Fill Foam Density vs. Reference
N/A
N/A
Upper Comfort Foam @ Head/Feet
43 kg/m³ (2.7 lb/cu.ft.)
38 kg/m³ (2.3 lb/cu.ft.)
Upper Comfort Foam @ Head/Feet Density vs. Reference
0.7
0.6
Upper Comfort Foam @ Lumbar
43 kg/m³ (2.7 lb/cu.ft.)
38 kg/m³ (2.3 lb/cu.ft.)
Upper Comfort Foam @ Lumbar Density vs. Reference
0.7
0.6
Lower Comfort Foam @ Head/Feet
22 kg/m³ (1.4 lb/cu.ft.)
N/A
Lower Comfort Foam @ Head/Feet Density vs. Reference
0.5
N/A
Lower Comfort Foam @ Lumbar
22 kg/m³ (1.4 lb/cu.ft.)
N/A
Lower Comfort Foam @ Lumbar Density vs. Reference
0.5
N/A
Transition Foam
25 kg/m³ (1.6 lb/cu.ft.)
18 kg/m³ (1.1 lb/cu.ft.)
Transition Foam Density vs. Reference
0.7
0.3
Support Foam
N/A
N/A
Support Foam Density vs Reference
N/A
N/A
Foam Layer Thickness
Foam Layer Thickness Picture
Quilted Top
N/A
N/A
Upper Comfort Foam @ Head/Feet
3.8 cm (1.5")
3.5 cm (1.4")
Upper Comfort Foam @ Lumbar
3.8 cm (1.5")
3.5 cm (1.4")
Lower Comfort Foam @ Head/Feet
2.7 cm (1.1")
N/A
Lower Comfort Foam @ Lumbar
2.7 cm (1.1")
N/A
Transition Foam
1.9 cm (0.7")
6.0 cm (2.4")
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
20.5 cm (8.1")
21.9 cm (8.6")
Support Layer Coil Density
241 coils/m² (22 coils/ft²)
233 coils/m² (22 coils/ft²)
Support Layer Coil Gauge @ Head/Feet
14 gauge
15 gauge
Support Layer Coil Gauge @ Lumbar
14 gauge
15 gauge
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
1.7 kPa
1.7 kPa
Upper Comfort Foam @ Lumbar 25% IPD
1.7 kPa
1.7 kPa
Lower Comfort Foam @ Head/Feet 25% IPD
3.6 kPa
N/A
Lower Comfort Foam @ Lumbar 25% IPD
3.6 kPa
N/A
Transition Foam 25% IPD
4.6 kPa
2.0 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
56 Pa/mm
77 Pa/mm
Normalized Support Layer Stiffness @ Lumbar
56 Pa/mm
68 Pa/mm
Foam Layer Resilience
Foam Layer Resilience Video
Quilted Top Fill
N/A
N/A
Upper Comfort Foam @ Head/Feet
5%
16%
Upper Comfort Foam @ Lumbar
5%
16%
Lower Comfort Foam @ Head/Feet
51%
N/A
Lower Comfort Foam @ Lumbar
51%
N/A
Transition Foam
31%
42%
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
23.0 cm (9.1")
44.0 cm (17.3")
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Helix Midnight 2024
Sealy Posturepedic Hybrid
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Helix Midnight 2024 vs Sealy Posturepedic Hybrid: Main Discussion
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