Casper Cooling Select Hybrid vs Silk & Snow Mattress: Which Mattress Is Better?

Tested using Methodology v1.2

Updated Jun 16, 2026 02:28 PM

See Casper Cooling Select Hybrid Review

Mattress Type Hybrid

Bed-In-A-Box Yes

Upper Comfort Foam @ LumbarPolyfoam

Firmness Level Medium-Plush (40 Pa/mm)

Mattress Type Foam

Bed-In-A-Box Yes

Upper Comfort Foam @ LumbarMemory Foam

Firmness Level Medium-Plush (39 Pa/mm)

Recommended in 8 articles:
Mattresses
Side Sleepers
Memory Foam
5

Our Verdict

Casper Cooling Select Hybrid

Silk & Snow Mattress

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

Variants

Cooling Select Hybrid (California King)
Cooling Select Hybrid (Full)

Mattress (Plush) (California King)
Mattress (Plush) (Full)

Review

See Silk & Snow Mattress Review

Check Price

California King

Cooling Select Hybrid

California King

Mattress (Plush)

Full

Cooling Select Hybrid

Full

Mattress (Plush)

King

Cooling Select Hybrid

King

Mattress (Plush)

Queen

Cooling Select Hybrid

Queen

Mattress (Plush)

Twin

Mattress (Plush)

Twin XL

Mattress (Plush)

Main Differences for

Side Sleeping

Threshold

0.10

Side Sleeping

0.0

8.1

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Full Comparison

Side Sleeping

0.0

8.1

Back Sleeping

0.0

7.3

Stomach Sleeping

0.0

7.1

Longevity

0.0

6.7

Pressure Relief

0.0

8.2

Support

0.0

7.0

Cooling

0.0

8.1

Motion Dissipation

0.0

9.4

Responsiveness

0.0

7.7

Design

Style

Style Picture

SAMPLE

for pictures & test results

Mattress Type

Locked

Foam

Bed-In-A-Box

Locked

Yes

Quilted Top Layer

Locked

Grab Handles

Locked

Thickness

Lock cm (Lock")

29.2 cm (11.5")

Performance

Firmness

Head/Feet Firmness

SAMPLE

for pictures & test results

Preview Graph

Lumbar Firmness

SAMPLE

for pictures & test results

Preview Graph

Firmness Video

SAMPLE

for videos & test results

Normalized Stiffness @ Head/Feet

Lock Pa/mm

38 Pa/mm

Normalized Stiffness @ Lumbar

Lock Pa/mm

39 Pa/mm

Firmness Level

Locked

Medium-Plush (39 Pa/mm)

Body Conformity

N/A

8.7

Shoulder Indentation vs. Body Weight

SAMPLE

for pictures & test results

Preview Graph

Silk & Snow Mattress Shoulder Indentation vs. Body Weight

Indent @ 50 kg (110 lb)

Lock mm (Lock")

63 mm (2.5")

Indent @ 80 kg (176 lb)

Lock mm (Lock")

91 mm (3.6")

Indent @ 110 kg (242 lb)

Lock mm (Lock")

119 mm (4.7")

Support

N/A

7.0

Pelvis Indentation vs. Body Weight

SAMPLE

for pictures & test results

Preview Graph

Silk & Snow Mattress Pelvis Indentation vs. Body Weight

Indent Difference @ 50 kg (110 lb)

Lock mm (Lock")

17 mm (0.6")

Indent Difference @ 80 kg (176 lb)

Lock mm (Lock")

21 mm (0.8")

Indent Difference @ 110 kg (242 lb)

Lock mm (Lock")

27 mm (1.1")

Bounciness

N/A

2.2

Bounciness Video

SAMPLE

for videos & test results

Maximum Rebound Height

Lock cm (Lock")

2.0 cm (0.8")

Comfort Layers Envelopment

N/A

6.3

Sinking & Contouring Picture

SAMPLE

for pictures & test results

Silk & Snow Mattress Sinking & Contouring Picture

Sinking Depth

Lock cm (Lock")

5.6 cm (2.2")

Diameter Of Distortion

Lock cm (Lock")

33.4 cm (13.2")

Responsiveness

N/A

9.1

Responsiveness Video

SAMPLE

for videos & test results

Response Time

Lock s

0.5 s

Motion Isolation

N/A

9.4

Motion Isolation Video

SAMPLE

for videos & test results

Head/Feet Motion Isolation

SAMPLE

for pictures & test results

Preview Graph

Silk & Snow Mattress Head/Feet Motion Isolation

Lumbar Motion Isolation

SAMPLE

for pictures & test results

Preview Graph

Silk & Snow Mattress Lumbar Motion Isolation

Peak Acceleration @ Head/Feet

Lock g

0.29 g

Dissipation Time @ Head/Feet

Lock s

0.32 s

Peak Acceleration @ Lumbar

Lock g

1.27 g

Dissipation Time @ Lumbar

Lock s

0.25 s

Edge Support

N/A

6.6

Naturalistic Loading Pad Video

SAMPLE

for videos & test results

Naturalistic Loading Pad

SAMPLE

for pictures & test results

Preview Graph

Silk & Snow Mattress Naturalistic Loading Pad

Small Platen

SAMPLE

for pictures & test results

Preview Graph

Naturalistic Loading Pad Indentation

Lock mm

164 mm

Small Platen Indentation @ 0 mm From Edge

Lock mm

202 mm

Small Platen Indentation @ 150 mm From Edge

Lock mm

175 mm

Increased Indentation @ Mattress Edge

Lock mm

27 mm

Cooling

N/A

8.1

Cooling Graph

SAMPLE

for pictures & test results

Preview Graph

Energy Transferred Over 1st Hour

Lock kJ

67 kJ

Energy Transferred Over 8 Hours

Lock kJ

166 kJ

Components

Cover

Cover Picture

SAMPLE

for pictures & test results

Sleeping Surface Material

Locked

Polyester

Removable

Locked

Yes

Machine Washable

Locked

Yes

Edge Construction

Edge Support Picture

SAMPLE

for pictures & test results

Silk & Snow Mattress Edge Support Picture

Edge Component

Locked

None

Foam Layer Material

Foam Layer Material Picture

SAMPLE

for pictures & test results

Silk & Snow Mattress Foam Layer Material Picture

Quilted Top Fill

N/A

Upper Comfort Foam @ Head/Feet

Locked

Memory Foam

Upper Comfort Foam @ Lumbar

Locked

Memory Foam

Lower Comfort Foam @ Head/Feet

Locked

N/A

Lower Comfort Foam @ Lumbar

Locked

N/A

Transition Foam

Locked

Polyfoam

Support Foam

N/A

Polyfoam

Foam Layer Mass Density

N/A

6.7

Quilted Top Fill

N/A

Quilted Top Fill Foam Density vs. Reference

N/A

Upper Comfort Foam @ Head/Feet

Lock kg/m³ (Lock lb/cu.ft.)

54 kg/m³ (3.4 lb/cu.ft.)

Upper Comfort Foam @ Head/Feet Density vs. Reference

Lock

0.8

Upper Comfort Foam @ Lumbar

Lock kg/m³ (Lock lb/cu.ft.)

54 kg/m³ (3.4 lb/cu.ft.)

Upper Comfort Foam @ Lumbar Density vs. Reference

Lock

0.8

Lower Comfort Foam @ Head/Feet

Lock kg/m³ (Lock lb/cu.ft.)

N/A

Lower Comfort Foam @ Head/Feet Density vs. Reference

Lock

N/A

Lower Comfort Foam @ Lumbar

Lock kg/m³ (Lock lb/cu.ft.)

N/A

Lower Comfort Foam @ Lumbar Density vs. Reference

Lock

N/A

Transition Foam

Lock kg/m³ (Lock lb/cu.ft.)

27 kg/m³ (1.7 lb/cu.ft.)

Transition Foam Density vs. Reference

Lock

0.8

Support Foam

N/A

32 kg/m³ (2.0 lb/cu.ft.)

Support Foam Density vs Reference

N/A

1.1

Foam Layer Thickness

Foam Layer Thickness Picture

SAMPLE

for pictures & test results

Silk & Snow Mattress Foam Layer Thickness Picture

Quilted Top

N/A

Upper Comfort Foam @ Head/Feet

Lock cm (Lock")

5.0 cm (2.0")

Upper Comfort Foam @ Lumbar

Lock cm (Lock")

5.0 cm (2.0")

Lower Comfort Foam @ Head/Feet

Lock cm (Lock")

N/A

Lower Comfort Foam @ Lumbar

Lock cm (Lock")

N/A

Transition Foam

Lock cm (Lock")

5.0 cm (2.0")

Support Foam

N/A

19.1 cm (7.5")

Spring Layer Dimensions

Spring Layer Height Picture

SAMPLE

for pictures & test results

Silk & Snow Mattress Spring Layer Height Picture

Spring Layer Density Picture

SAMPLE

for pictures & test results

Silk & Snow Mattress Spring Layer Density Picture

Comfort Layer Height

N/A

Comfort Layer Coil Density

N/A

Comfort Layer Coil Gauge

N/A

Support Layer Height

Lock cm (Lock")

N/A

Support Layer Coil Density

Lock coils/m² (Lock coils/ft²)

N/A

Support Layer Coil Gauge @ Head/Feet

Lock gauge

N/A

Support Layer Coil Gauge @ Lumbar

Lock gauge

N/A

Foam Layer Firmness

Comfort Layer IPD

SAMPLE

for pictures & test results

Preview Graph

Transition & Support Layer IPD

SAMPLE

for pictures & test results

Preview Graph

Silk & Snow Mattress Transition & Support Layer IPD

Quilted Top Fill 25% IPD

N/A

Upper Comfort Foam @ Head/Feet 25% IPD

Lock kPa

1.6 kPa

Upper Comfort Foam @ Lumbar 25% IPD

Lock kPa

1.6 kPa

Lower Comfort Foam @ Head/Feet 25% IPD

Lock kPa

N/A

Lower Comfort Foam @ Lumbar 25% IPD

Lock kPa

N/A

Transition Foam 25% IPD

Lock kPa

1.6 kPa

Support Foam 25% IPD

N/A

3.2 kPa

Spring Layer Firmness

Comfort Layer Firmness

SAMPLE

for pictures & test results

Silk & Snow Mattress Comfort Layer Firmness

Support Layer Firmness

SAMPLE

for pictures & test results

Silk & Snow Mattress Support Layer Firmness

Spring Layer Firmness

SAMPLE

for videos & test results

Normalized Comfort Layer Stiffness @ Head/Feet

N/A

Normalized Comfort Layer Stiffness @ Lumbar

N/A

Normalized Support Layer Stiffness @ Head/Feet

Lock Pa/mm

N/A

Normalized Support Layer Stiffness @ Lumbar

Lock Pa/mm

N/A

Foam Layer Resilience

Foam Layer Resilience Video

SAMPLE

for videos & test results

Quilted Top Fill

N/A

Upper Comfort Foam @ Head/Feet

Lock%

Upper Comfort Foam @ Lumbar

Lock%

Lower Comfort Foam @ Head/Feet

Lock%

N/A

Lower Comfort Foam @ Lumbar

Lock%

N/A

Transition Foam

Lock%

34%

Support Foam

N/A

45%

Spring Layer Bounciness

Comfort Spring Layer Bounciness Video

SAMPLE

for videos & test results

Support Spring Layer Bounciness Video

SAMPLE

for videos & test results

Comfort Spring Layer Maximum Rebound Height

N/A

Support Spring Layer Maximum Rebound Height

Lock cm (Lock")

N/A

Check Price

California King

Cooling Select Hybrid

California King

Mattress (Plush)

Full

Cooling Select Hybrid

Full

Mattress (Plush)

King

Cooling Select Hybrid

King

Mattress (Plush)

Queen

Cooling Select Hybrid

Queen

Mattress (Plush)

Twin

Mattress (Plush)

Twin XL

Mattress (Plush)