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  1. Home
  2. Mattress
  3. Compare

Casper Snow vs Plank Firm Luxe

Which Mattress Is Better?

    Top
    Main Differences
    Design
      Style
    Performance
      FirmnessBody ConformitySupportBouncinessComfort Layers EnvelopmentResponsivenessMotion IsolationEdge SupportCooling
    Components
      CoverEdge ConstructionFoam Layer MaterialFoam Layer Mass DensityFoam Layer ThicknessSpring Layer DimensionsFoam Layer FirmnessSpring Layer FirmnessFoam Layer ResilienceSpring Layer Bounciness
    Comments

Products

Casper Snow
Plank Firm Luxe 
early access

Tested using Methodology v1.2

Updated Mar 05, 2026 06:56 PM

SEE PRICE
Casper

Tested using Methodology v1.1

Updated Feb 06, 2026 04:31 PM

This review is in Early access

SEE PRICE
Amazon.com
Casper Snow Picture

Track

Plank Firm Luxe Picture

Track

Mattress Type
Hybrid
Bed-In-A-Box
Yes
Upper Comfort Foam @ LumbarMemory Foam
Firmness Level
Medium (47 Pa/mm)
Mattress Type
Hybrid
Bed-In-A-Box
Yes
Upper Comfort Foam @ LumbarPolyfoam
Firmness Level
Firm (66 Pa/mm)
  1. Recommended in 6 articles:
  2. Mattresses
  3. Side Sleepers
  4. Memory Foam
  5. 3

Our Verdict

Casper Snow

Plank Firm Luxe

Full comparison details regarding individual product score sets can be found in the section below
0 

Variants

  • Snow (Queen)
  • Firm Luxe (Queen)

Review

See Casper Snow Review
See Plank Firm Luxe Review
0 
0 

Check Price

Queen
Snow
SEE PRICE
Casper
Queen
Firm Luxe
SEE PRICE
Amazon.com
Read more

Main Differences for
Side Sleeping

Threshold 

0.10

Side Sleeping 
 

8.3
0.0
No major differences between these mattresses for side sleeping. See full list of tests below.

Full Comparison

Design

Style 
 

Style Picture  

Compare High-Res
Casper Snow Style Picture
Plank Firm Luxe Style Picture Sample

SAMPLE

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for pictures & test results

Mattress Type 
 

Hybrid
Locked

Bed-In-A-Box 
 

Yes
Locked

Quilted Top Layer 
 

No
Locked

Grab Handles 
 

No
Locked

Thickness  

30.5 cm (12.0")
Lock cm (Lock")
Show Text 
Performance

Firmness 
 

Head/Feet Firmness  

 Preview Graph
Casper Snow Head/Feet Firmness
Plank Firm Luxe Head/Feet Firmness Sample

SAMPLE

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for pictures & test results

Lumbar Firmness  

 Preview Graph
Casper Snow Lumbar Firmness
Plank Firm Luxe Lumbar Firmness Sample

SAMPLE

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for pictures & test results

Firmness Video  

Plank Firm Luxe Firmness Video Sample

SAMPLE

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for videos & test results

Normalized Stiffness @ Head/Feet 
 

56 Pa/mm
Lock Pa/mm

Normalized Stiffness @ Lumbar 
 

47 Pa/mm
Lock Pa/mm

Firmness Level 
 

Medium (47 Pa/mm)
Locked
Show Text 

Body Conformity 
 

8.4
N/A

Shoulder Indentation vs. Body Weight  

 Preview Graph
Casper Snow Shoulder Indentation vs. Body Weight
Plank Firm Luxe Shoulder Indentation vs. Body Weight Sample

SAMPLE

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Indent @ 50 kg (110 lb) 
 

62 mm (2.5")
Lock mm (Lock")

Indent @ 80 kg (176 lb) 
 

80 mm (3.2")
Lock mm (Lock")

Indent @ 110 kg (242 lb) 
 

96 mm (3.8")
Lock mm (Lock")
Show Text 

Support 
 

8.6
N/A

Pelvis Indentation vs. Body Weight  

 Preview Graph
Casper Snow Pelvis Indentation vs. Body Weight
Plank Firm Luxe Pelvis Indentation vs. Body Weight Sample

SAMPLE

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Indent Difference @ 50 kg (110 lb) 
 

0 mm (0.0")
Lock mm (Lock")

Indent Difference @ 80 kg (176 lb) 
 

7 mm (0.3")
Lock mm (Lock")

Indent Difference @ 110 kg (242 lb) 
 

13 mm (0.5")
Lock mm (Lock")
Show Text 

Bounciness 
 

7.1
N/A

Bounciness Video  

Plank Firm Luxe Bounciness Video Sample

SAMPLE

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Maximum Rebound Height 
 

13.0 cm (5.1")
Lock cm (Lock")
Show Text 

Comfort Layers Envelopment 
 

7.7
N/A

Sinking & Contouring Picture  

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Casper Snow Sinking & Contouring Picture
Plank Firm Luxe Sinking & Contouring Picture Sample

SAMPLE

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Sinking Depth 
 

5.6 cm (2.2")
Lock cm (Lock")

Diameter Of Distortion 
 

28.3 cm (11.1")
Lock cm (Lock")
Show Text 

Responsiveness 
 

4.5
N/A

Responsiveness Video  

Plank Firm Luxe Responsiveness Video Sample

SAMPLE

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Response Time 
 

3.1 s
Lock s
Show Text 

Motion Isolation 
 

8.5
N/A

Motion Isolation Video  

Plank Firm Luxe Motion Isolation Video Sample

SAMPLE

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Head/Feet Motion Isolation  

 Preview Graph
Casper Snow Head/Feet Motion Isolation
Plank Firm Luxe Head/Feet Motion Isolation Sample

SAMPLE

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Lumbar Motion Isolation  

 Preview Graph
Casper Snow Lumbar Motion Isolation
Plank Firm Luxe Lumbar Motion Isolation Sample

SAMPLE

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for pictures & test results

Peak Acceleration @ Head/Feet 
 

0.56 g
Lock g

Dissipation Time @ Head/Feet 
 

0.33 s
Lock s

Peak Acceleration @ Lumbar 
 

2.91 g
Lock g

Dissipation Time @ Lumbar 
 

0.32 s
Lock s
Show Text 

Edge Support 
 

6.0
N/A

Naturalistic Loading Pad Video  

Plank Firm Luxe Naturalistic Loading Pad Video Sample

SAMPLE

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Naturalistic Loading Pad  

 Preview Graph
Casper Snow Naturalistic Loading Pad
Plank Firm Luxe Naturalistic Loading Pad Sample

SAMPLE

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Small Platen  

 Preview Graph
Casper Snow Small Platen
Plank Firm Luxe Small Platen Sample

SAMPLE

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Naturalistic Loading Pad Indentation 
 

149 mm
Lock mm

Small Platen Indentation @ 0 mm From Edge 
 

194 mm
Lock mm

Small Platen Indentation @ 150 mm From Edge 
 

148 mm
Lock mm

Increased Indentation @ Mattress Edge 
 

46 mm
Lock mm
Show Text 

Cooling 
 

8.9
N/A

Cooling Graph  

 Preview Graph
Casper Snow Cooling Graph
Plank Firm Luxe Cooling Graph Sample

SAMPLE

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for pictures & test results

Energy Transferred Over 1st Hour 
 

71 kJ
Lock kJ

Energy Transferred Over 8 Hours 
 

198 kJ
Lock kJ
Show Text 
Components

Cover 
 

Cover Picture  

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Casper Snow Cover Picture
Plank Firm Luxe Cover Picture Sample

SAMPLE

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Sleeping Surface Material 
 

Polyester, Polyethylene, Spandex
Locked

Removable 
 

No
Locked

Machine Washable 
 

No
Locked
Show Text 

Edge Construction 
 

Edge Support Picture  

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Casper Snow Edge Support Picture
Plank Firm Luxe Edge Support Picture Sample

SAMPLE

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Edge Component 
 

Polyfoam
Locked
Show Text 

Foam Layer Material 
 

Foam Layer Material Picture  

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Casper Snow Foam Layer Material Picture
Plank Firm Luxe Foam Layer Material Picture Sample

SAMPLE

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Quilted Top Fill  

N/A
Locked

Upper Comfort Foam @ Head/Feet  

Memory Foam
Locked

Upper Comfort Foam @ Lumbar  

Memory Foam
Locked

Lower Comfort Foam @ Head/Feet  

Memory Foam
N/A

Lower Comfort Foam @ Lumbar  

Memory Foam
N/A

Transition Foam  

N/A
Locked

Support Foam  

N/A
N/A
Show Text 

Foam Layer Mass Density 
 

5.3
N/A

Quilted Top Fill  

N/A
Lock kg/m³ (Lock lb/cu.ft.)

Quilted Top Fill Foam Density vs. Reference 
 

N/A
Lock

Upper Comfort Foam @ Head/Feet  

40 kg/m³ (2.5 lb/cu.ft.)
Lock kg/m³ (Lock lb/cu.ft.)

Upper Comfort Foam @ Head/Feet Density vs. Reference 
 

0.6
Lock

Upper Comfort Foam @ Lumbar  

40 kg/m³ (2.5 lb/cu.ft.)
Lock kg/m³ (Lock lb/cu.ft.)

Upper Comfort Foam @ Lumbar Density vs. Reference 
 

0.6
Lock

Lower Comfort Foam @ Head/Feet  

38 kg/m³ (2.4 lb/cu.ft.)
N/A

Lower Comfort Foam @ Head/Feet Density vs. Reference 
 

0.6
N/A

Lower Comfort Foam @ Lumbar  

41 kg/m³ (2.6 lb/cu.ft.)
N/A

Lower Comfort Foam @ Lumbar Density vs. Reference 
 

0.6
N/A

Transition Foam  

N/A
Lock kg/m³ (Lock lb/cu.ft.)

Transition Foam Density vs. Reference 
 

N/A
Lock

Support Foam  

N/A
N/A

Support Foam Density vs Reference 
 

N/A
N/A
Show Text 

Foam Layer Thickness 
 

Foam Layer Thickness Picture  

Compare High-Res
Casper Snow Foam Layer Thickness Picture
Plank Firm Luxe Foam Layer Thickness Picture Sample

SAMPLE

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Quilted Top 
 

N/A
Lock cm (Lock")

Upper Comfort Foam @ Head/Feet  

2.7 cm (1.1")
Lock cm (Lock")

Upper Comfort Foam @ Lumbar  

2.7 cm (1.1")
Lock cm (Lock")

Lower Comfort Foam @ Head/Feet  

5.0 cm (2.0")
N/A

Lower Comfort Foam @ Lumbar  

5.0 cm (2.0")
N/A

Transition Foam  

N/A
Lock cm (Lock")

Support Foam  

N/A
N/A
Show Text 

Spring Layer Dimensions 
 

Spring Layer Height Picture  

Compare High-Res
Casper Snow Spring Layer Height Picture
Plank Firm Luxe Spring Layer Height Picture Sample

SAMPLE

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Spring Layer Density Picture  

Compare High-Res
Casper Snow Spring Layer Density Picture
Plank Firm Luxe Spring Layer Density Picture Sample

SAMPLE

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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 
 

16.8 cm (6.6")
Lock cm (Lock")

Support Layer Coil Density 
 

277 coils/m² (26 coils/ft²)
Lock coils/m² (Lock coils/ft²)

Support Layer Coil Gauge @ Head/Feet 
 

14 gauge
Lock gauge

Support Layer Coil Gauge @ Lumbar 
 

14 gauge
Lock gauge
Show Text 

Foam Layer Firmness 
 

Comfort Layer IPD  

 Preview Graph
Casper Snow Comfort Layer IPD
Plank Firm Luxe Comfort Layer IPD Sample

SAMPLE

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Transition & Support Layer IPD  

Casper Snow Transition & Support Layer IPD
Plank Firm Luxe Transition & Support Layer IPD Sample

SAMPLE

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Quilted Top Fill 25% IPD 
 

N/A
Lock kPa

Upper Comfort Foam @ Head/Feet 25% IPD 
 

1.0 kPa
Lock kPa

Upper Comfort Foam @ Lumbar 25% IPD 
 

1.0 kPa
Lock kPa

Lower Comfort Foam @ Head/Feet 25% IPD 
 

1.0 kPa
N/A

Lower Comfort Foam @ Lumbar 25% IPD 
 

1.9 kPa
N/A

Transition Foam 25% IPD 
 

N/A
Lock kPa

Support Foam 25% IPD 
 

N/A
N/A
Show Text 

Spring Layer Firmness 
 

Comfort Layer Firmness  

Casper Snow Comfort Layer Firmness
Plank Firm Luxe Comfort Layer Firmness Sample

SAMPLE

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Support Layer Firmness  

 Preview Graph
Casper Snow Support Layer Firmness
Plank Firm Luxe Support Layer Firmness Sample

SAMPLE

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for pictures & test results

Spring Layer Firmness  

Plank Firm Luxe Spring Layer Firmness Sample

SAMPLE

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for videos & test results

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 
 

97 Pa/mm
Lock Pa/mm

Normalized Support Layer Stiffness @ Lumbar 
 

93 Pa/mm
Lock Pa/mm
Show Text 

Foam Layer Resilience 
 

Foam Layer Resilience Video  

Plank Firm Luxe Foam Layer Resilience Video Sample

SAMPLE

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for videos & test results

Quilted Top Fill  

N/A
Lock%

Upper Comfort Foam @ Head/Feet  

2%
Lock%

Upper Comfort Foam @ Lumbar  

2%
Lock%

Lower Comfort Foam @ Head/Feet  

1%
N/A

Lower Comfort Foam @ Lumbar  

5%
N/A

Transition Foam  

N/A
Lock%

Support Foam  

N/A
N/A
Show Text 

Spring Layer Bounciness 
 

Comfort Spring Layer Bounciness Video  

Plank Firm Luxe Comfort Spring Layer Bounciness Video Sample

SAMPLE

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Support Spring Layer Bounciness Video  

Plank Firm Luxe Support Spring Layer Bounciness Video Sample

SAMPLE

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Comfort Spring Layer Maximum Rebound Height 
 

N/A
N/A

Support Spring Layer Maximum Rebound Height 
 

37.5 cm (14.8")
Lock cm (Lock")
Show Text 

Check Price

Queen
Snow
SEE PRICE
Casper
Queen
Firm Luxe
SEE PRICE
Amazon.com
Back to Top

Casper Snow

Plank Firm Luxe

Comments

  1. Comparison
 • Posted 1 hour ago

Casper Snow vs Plank Firm Luxe: Main Discussion

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