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  1. Home
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Novaform Serafina Pearl vs Casper Cooling Select

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

Novaform Serafina Pearl
Casper Cooling Select 
early access

Tested using Methodology v1.0.1

Updated Dec 03, 2025 02:15 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.1

Updated Dec 15, 2025 07:24 PM

This review is in Early access

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Novaform Serafina Pearl Picture
Casper Cooling Select Picture
Mattress Type
Foam
Bounciness Level
Very Low (2 cm)
Upper Comfort Foam @ LumbarMemory Foam
Sinking Level
Moderate (5 cm)
Firmness Level
Medium (44 Pa/mm)
Contouring Level
Low (32 cm)
Mattress Type
Locked
Upper Comfort Foam @ LumbarLocked
Firmness Level
Locked

Our Verdict

Novaform Serafina Pearl

Casper Cooling Select

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

Variants

  • Serafina Pearl (Queen (Plush))
  • Cooling Select (Queen)

Review

See Novaform Serafina Pearl Review
See Casper Cooling Select Review
0 
0 

Check Price

 
Queen
Cooling Select
SEARCH
Amazon.com
Queen (Plush)
Serafina Pearl
SEE PRICE
Amazon.com
 
Read more

Main Differences for
Sleeping (In Development)

Threshold 

0.10

Sleeping (In Development) 
 

7.7
N/A
No major differences between these mattresses for sleeping (in development). See full list of tests below.

Full Comparison

Design

Style 
 

Style Picture 
 

Compare High-Res
Novaform Serafina Pearl Style Picture
Casper Cooling Select Style Picture Sample

SAMPLE

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Mattress Type 
 

Foam
Locked

Bed-In-A-Box 
 

Yes
Locked

Quilted Top Layer 
 

No
Locked

Grab Handles 
 

Yes
Locked

Thickness  

35.8 cm (14.1")
Lock cm (Lock")
Show Text 
Performance

Firmness 
 

Head/Feet Firmness  

 Preview Graph
Novaform Serafina Pearl Head/Feet Firmness
Casper Cooling Select Head/Feet Firmness Sample

SAMPLE

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Lumbar Firmness  

 Preview Graph
Novaform Serafina Pearl Lumbar Firmness
Casper Cooling Select Lumbar Firmness Sample

SAMPLE

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Firmness Video  

Casper Cooling Select Firmness Video Sample

SAMPLE

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Normalized Stiffness @ Head/Feet 
 

42 Pa/mm
Lock Pa/mm

Normalized Stiffness @ Lumbar 
 

44 Pa/mm
Lock Pa/mm

Firmness Level 
 

Medium (44 Pa/mm)
Locked
Show Text 

Body Conformity 
 

N/A

Shoulder Indentation vs. Body Weight  

Casper Cooling Select Shoulder Indentation vs. Body Weight Sample

SAMPLE

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Indent @ 50 kg (110 lb) 
 

Lock mm (Lock")

Indent @ 80 kg (172 lb) 
 

Lock mm (Lock")

Indent @ 110 kg (242 lb) 
 

Lock mm (Lock")

Support 
 

N/A

Pelvis Indentation vs. Body Weight  

Casper Cooling Select Pelvis Indentation vs. Body Weight Sample

SAMPLE

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Indent Difference @ 50 kg (110 lb) 
 

Lock mm (Lock")

Indent Difference @ 80 kg (172 lb) 
 

Lock mm (Lock")

Indent Difference @ 110 kg (242 lb) 
 

Lock mm (Lock")

Bounciness 
 

0.0
N/A

Bounciness Video  

Casper Cooling Select Bounciness Video Sample

SAMPLE

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Maximum Rebound Height 
 

2.0 cm (0.8")
Lock cm (Lock")

Bounciness Level 
 

Very Low (2 cm)
Show Text 

Comfort Layers Envelopment 
 

0.0
N/A

Sinking & Contouring Picture 
 

Compare High-Res
Novaform Serafina Pearl Sinking & Contouring Picture
Casper Cooling Select Sinking & Contouring Picture Sample

SAMPLE

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Sinking Depth 
 

5.4 cm (2.1")
Lock cm (Lock")

Diameter Of Distortion 
 

31.8 cm (12.5")
Lock cm (Lock")

Sinking Level 
 

Moderate (5 cm)

Contouring Level 
 

Low (32 cm)
Show Text 

Responsiveness 
 

7.7
N/A

Responsiveness Video  

Casper Cooling Select Responsiveness Video Sample

SAMPLE

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Response Time 
 

1.0 s
Lock s
Show Text 

Motion Isolation 
 

8.4
N/A

Motion Isolation Video  

Casper Cooling Select Motion Isolation Video Sample

SAMPLE

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Head/Feet Motion Isolation  

 Preview Graph
Novaform Serafina Pearl Head/Feet Motion Isolation
Casper Cooling Select Head/Feet Motion Isolation Sample

SAMPLE

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Lumbar Motion Isolation  

 Preview Graph
Novaform Serafina Pearl Lumbar Motion Isolation
Casper Cooling Select Lumbar Motion Isolation Sample

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Peak Acceleration @ Head/Feet 
 

0.70 g
Lock g

Dissipation Time @ Head/Feet 
 

0.32 s
Lock s

Peak Acceleration @ Lumbar 
 

3.25 g
Lock g

Dissipation Time @ Lumbar 
 

0.32 s
Lock s
Show Text 

Edge Support 
 

6.9
N/A

Naturalistic Loading Pad Video  

Casper Cooling Select Naturalistic Loading Pad Video Sample

SAMPLE

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Naturalistic Loading Pad  

 Preview Graph
Novaform Serafina Pearl Naturalistic Loading Pad
Casper Cooling Select Naturalistic Loading Pad Sample

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Small Platen  

 Preview Graph
Novaform Serafina Pearl Small Platen
Casper Cooling Select Small Platen Sample

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Naturalistic Loading Pad Indentation 
 

156 mm
Lock mm

Small Platen Indentation @ 0 mm From Edge 
 

177 mm
Lock mm

Small Platen Indentation @ 150 mm From Edge 
 

150 mm
Lock mm

Increased Indentation @ Mattress Edge 
 

27 mm
Lock mm
Show Text 

Cooling 
 

7.8
N/A

Cooling Graph  

 Preview Graph
Novaform Serafina Pearl Cooling Graph
Casper Cooling Select Cooling Graph Sample

SAMPLE

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Energy Transferred Over 1st Hour 
 

63 kJ
Lock kJ

Energy Transferred Over 8 Hours 
 

164 kJ
Lock kJ
Show Text 
Components

Cover 
 

Cover Picture 
 

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Novaform Serafina Pearl Cover Picture
Casper Cooling Select Cover Picture Sample

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Sleeping Surface Material 
 

Polyester, Nylon, Polyethylene
Locked

Removable 
 

No
Locked

Machine Washable 
 

No
Locked
Show Text 

Edge Construction 
 

Edge Support Picture 
 

Compare High-Res
Novaform Serafina Pearl Edge Support Picture
Casper Cooling Select Edge Support Picture Sample

SAMPLE

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Edge Component 
 

None
Locked
Show Text 

Foam Layer Material 
 

Foam Layer Material Picture 
 

Compare High-Res
Novaform Serafina Pearl Foam Layer Material Picture
Casper Cooling Select Foam Layer Material Picture Sample

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Quilted Top Fill  

N/A
N/A

Upper Comfort Foam @ Head/Feet  

Memory Foam
Locked

Upper Comfort Foam @ Lumbar  

Memory Foam
Locked

Lower Comfort Foam @ Head/Feet  

N/A
Locked

Lower Comfort Foam @ Lumbar  

N/A
Locked

Transition Foam  

Polyfoam
Locked

Support Foam  

Polyfoam
Locked
Show Text 

Foam Layer Mass Density 
 

6.8
N/A

Quilted Top Fill  

N/A
N/A

Quilted Top Fill Foam Density vs. Reference 
 

N/A
N/A

Upper Comfort Foam @ Head/Feet  

50 kg/m³ (3.1 lb/cu.ft.)
Lock kg/m³ (Lock lb/cu.ft.)

Upper Comfort Foam @ Head/Feet Density vs. Reference 
 

0.8
Lock

Upper Comfort Foam @ Lumbar  

50 kg/m³ (3.1 lb/cu.ft.)
Lock kg/m³ (Lock lb/cu.ft.)

Upper Comfort Foam @ Lumbar Density vs. Reference 
 

0.8
Lock

Lower Comfort Foam @ Head/Feet  

N/A
Lock kg/m³ (Lock lb/cu.ft.)

Lower Comfort Foam @ Head/Feet Density vs. Reference 
 

N/A
Lock

Lower Comfort Foam @ Lumbar  

N/A
Lock kg/m³ (Lock lb/cu.ft.)

Lower Comfort Foam @ Lumbar Density vs. Reference 
 

N/A
Lock

Transition Foam  

35 kg/m³ (2.2 lb/cu.ft.)
Lock kg/m³ (Lock lb/cu.ft.)

Transition Foam Density vs. Reference 
 

1.3
Lock

Support Foam  

28 kg/m³ (1.7 lb/cu.ft.)
Lock kg/m³ (Lock lb/cu.ft.)

Support Foam Density vs Reference 
 

0.9
Lock
Show Text 

Foam Layer Thickness 
 

Foam Layer Thickness Picture 
 

Compare High-Res
Novaform Serafina Pearl Foam Layer Thickness Picture
Casper Cooling Select Foam Layer Thickness Picture Sample

SAMPLE

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Quilted Top 
 

N/A
N/A

Upper Comfort Foam @ Head/Feet  

7.3 cm (2.9")
Lock cm (Lock")

Upper Comfort Foam @ Lumbar  

7.3 cm (2.9")
Lock cm (Lock")

Lower Comfort Foam @ Head/Feet  

N/A
Lock cm (Lock")

Lower Comfort Foam @ Lumbar  

N/A
Lock cm (Lock")

Transition Foam  

7.5 cm (3.0")
Lock cm (Lock")

Support Foam  

21.0 cm (8.3")
Lock cm (Lock")
Show Text 

Spring Layer Dimensions 
 

Spring Layer Height Picture 
 

Compare High-Res
Novaform Serafina Pearl Spring Layer Height Picture
Casper Cooling Select Spring Layer Height Picture Sample

SAMPLE

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Spring Layer Density Picture 
 

Compare High-Res
Novaform Serafina Pearl Spring Layer Density Picture
Casper Cooling Select Spring Layer Density Picture 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 
 

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  

 Preview Graph
Novaform Serafina Pearl Comfort Layer IPD
Casper Cooling Select Comfort Layer IPD Sample

SAMPLE

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Transition & Support Layer IPD  

 Preview Graph
Novaform Serafina Pearl Transition & Support Layer IPD
Casper Cooling Select Transition & Support Layer IPD Sample

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Quilted Top Fill 25% IPD 
 

N/A
N/A

Upper Comfort Foam @ Head/Feet 25% IPD 
 

1.8 kPa
Lock kPa

Upper Comfort Foam @ Lumbar 25% IPD 
 

1.8 kPa
Lock kPa

Lower Comfort Foam @ Head/Feet 25% IPD 
 

N/A
Lock kPa

Lower Comfort Foam @ Lumbar 25% IPD 
 

N/A
Lock kPa

Transition Foam 25% IPD 
 

1.9 kPa
Lock kPa

Support Foam 25% IPD 
 

3.7 kPa
Lock kPa
Show Text 

Spring Layer Firmness 
 

Comfort Layer Firmness  

Novaform Serafina Pearl Comfort Layer Firmness
Casper Cooling Select Comfort Layer Firmness Sample

SAMPLE

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Support Layer Firmness  

Novaform Serafina Pearl Support Layer Firmness
Casper Cooling Select Support Layer Firmness Sample

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Spring Layer Firmness  

Casper Cooling Select Spring Layer Firmness Sample

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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  

Casper Cooling Select Foam Layer Resilience Video Sample

SAMPLE

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Quilted Top Fill  

N/A
N/A

Upper Comfort Foam @ Head/Feet  

2%
Lock%

Upper Comfort Foam @ Lumbar  

2%
Lock%

Lower Comfort Foam @ Head/Feet  

N/A
Lock%

Lower Comfort Foam @ Lumbar  

N/A
Lock%

Transition Foam  

15%
Lock%

Support Foam  

46%
Lock%
Show Text 

Spring Layer Bounciness 
 

Comfort Spring Layer Bounciness Video  

Casper Cooling Select Comfort Spring Layer Bounciness Video Sample

SAMPLE

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Support Spring Layer Bounciness Video  

Casper Cooling Select 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 
 

N/A
N/A

Check Price

 
Queen
Cooling Select
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Queen (Plush)
Serafina Pearl
SEE PRICE
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Novaform Serafina Pearl

Casper Cooling Select

Comments

  1. Comparison
 • Posted 43 minutes ago

Novaform Serafina Pearl vs Casper Cooling Select: Main Discussion

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