Helix Midnight Luxe 2025 vs Saatva Classic (Plush Soft): Which Mattress Is Better?

Tested using Methodology v1.2

Updated Jul 30, 2026 04:47 PM

See Helix Midnight Luxe 2025 Review

Mattress Type Hybrid

Bed-In-A-Box Yes

Upper Comfort Foam @ LumbarMemory Foam

Firmness Level Medium (44 Pa/mm)

Mattress Type Innerspring

Bed-In-A-Box No

Upper Comfort Foam @ LumbarMemory Foam

Firmness Level Medium-Plush (39 Pa/mm)

Recommended in 11 articles:
Mattresses
Back Pain
Side Sleepers
8

Recommended in 1 article:
Seniors

Our Verdict

Helix Midnight Luxe 2025

Saatva Classic (Plush Soft)

The Helix Midnight Luxe 2025 is better for most people than the Saatva Classic (Plush Soft). The Helix has a more durable design as well as significantly better cooling and motion dissipation. Its better support makes it suitable for a wider range of sleepers. However, the Saatva's better pressure relief makes it more suitable for lighter side sleepers. You might also prefer it if you want a very bouncy, very responsive mattress.

Variants

Midnight Luxe 2025 (California King)
Midnight Luxe 2025 (Full)

Classic (Plush Soft - 14.5") (California King)
Classic (Plush Soft - 14.5") (Full)

Review

See Saatva Classic (Plush Soft) Review

Check Price

California King

Midnight Luxe 2025

California King

Classic (Plush Soft - 14.5")

Full

Midnight Luxe 2025

Full

Classic (Plush Soft - 14.5")

King

Midnight Luxe 2025

King

Classic (Plush Soft - 14.5")

Queen

Midnight Luxe 2025

Queen

Classic (Plush Soft - 14.5")

Split King

Classic (Plush Soft - 14.5")

Twin

Midnight Luxe 2025

Twin

Classic (Plush Soft - 14.5")

Twin XL

Midnight Luxe 2025

Twin XL

Classic (Plush Soft - 14.5")

Main Differences for

Side Sleeping

Threshold

0.10

Side Sleeping

8.2

8.4

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

Full Comparison

Side Sleeping

8.2

8.4

Back Sleeping

7.4

7.1

Stomach Sleeping

7.2

6.6

Longevity

6.8

5.7

Pressure Relief

8.3

8.6

Support

7.2

6.5

Cooling

8.2

8.3

Motion Dissipation

8.2

6.5

Responsiveness

8.2

9.1

Design

Style

Style Picture

Compare High-Res

Saatva Classic (Plush Soft) Style Picture

Mattress Type

Hybrid

Innerspring

Bed-In-A-Box

Yes

Quilted Top Layer

Yes

Grab Handles

Yes

Thickness

34.8 cm (13.7")

38.3 cm (15.1")

Performance

Firmness

Head/Feet Firmness

Preview Graph

Saatva Classic (Plush Soft) Head/Feet Firmness

Lumbar Firmness

Preview Graph

Saatva Classic (Plush Soft) Lumbar Firmness

Firmness Video

Normalized Stiffness @ Head/Feet

41 Pa/mm

39 Pa/mm

Normalized Stiffness @ Lumbar

44 Pa/mm

39 Pa/mm

Firmness Level

Medium (44 Pa/mm)

Medium-Plush (39 Pa/mm)

Body Conformity

8.3

8.7

Shoulder Indentation vs. Body Weight

Preview Graph

Saatva Classic (Plush Soft) Shoulder Indentation vs. Body Weight

Body Conformity Picture

Indent @ 50 kg (110 lb)

55 mm (2.2")

64 mm (2.5")

Indent @ 80 kg (176 lb)

83 mm (3.3")

91 mm (3.6")

Indent @ 110 kg (242 lb)

105 mm (4.1")

112 mm (4.4")

Support

7.2

6.5

Pelvis Indentation vs. Body Weight

Preview Graph

Saatva Classic (Plush Soft) Pelvis Indentation vs. Body Weight

Indent Difference @ 50 kg (110 lb)

18 mm (0.7")

21 mm (0.8")

Indent Difference @ 80 kg (176 lb)

22 mm (0.9")

27 mm (1.1")

Indent Difference @ 110 kg (242 lb)

22 mm (0.9")

30 mm (1.2")

Bounciness

7.4

8.7

Bounciness Video

Maximum Rebound Height

15.0 cm (5.9")

26.0 cm (10.2")

Comfort Layers Envelopment

8.0

8.2

Sinking & Contouring Picture

Compare High-Res

Saatva Classic (Plush Soft) Sinking & Contouring Picture

Sinking Depth

5.3 cm (2.1")

5.2 cm (2.1")

Diameter Of Distortion

27.0 cm (10.6")

26.5 cm (10.4")

Responsiveness

8.4

9.2

Responsiveness Video

Response Time

0.7 s

0.5 s

Motion Isolation

8.2

6.5

Motion Isolation Video

Head/Feet Motion Isolation

Preview Graph

Saatva Classic (Plush Soft) Head/Feet Motion Isolation

Lumbar Motion Isolation

Preview Graph

Saatva Classic (Plush Soft) Lumbar Motion Isolation

Peak Acceleration @ Head/Feet

0.88 g

3.55 g

Dissipation Time @ Head/Feet

0.53 s

0.78 s

Peak Acceleration @ Lumbar

1.94 g

3.96 g

Dissipation Time @ Lumbar

0.61 s

0.69 s

Edge Support

9.0

Naturalistic Loading Pad Video

Naturalistic Loading Pad

Preview Graph

Saatva Classic (Plush Soft) Naturalistic Loading Pad

Small Platen

Preview Graph

Saatva Classic (Plush Soft) Small Platen

Naturalistic Loading Pad Indentation

134 mm

132 mm

Small Platen Indentation @ 0 mm From Edge

147 mm

152 mm

Small Platen Indentation @ 150 mm From Edge

150 mm

146 mm

Increased Indentation @ Mattress Edge

-3 mm

7 mm

Cooling

8.2

8.3

Cooling Graph

Preview Graph

Saatva Classic (Plush Soft) Cooling Graph

Energy Transferred Over 1st Hour

63 kJ

58 kJ

Energy Transferred Over 8 Hours

176 kJ

183 kJ

Components

Cover

Cover Picture

Compare High-Res

Saatva Classic (Plush Soft) Cover Picture

Sleeping Surface Material

TENCEL

Organic Cotton

Removable

Machine Washable

Edge Construction

Edge Support Picture

Compare High-Res

Saatva Classic (Plush Soft) Edge Support Picture

Edge Component

Pocket Coils

Polyfoam

Foam Layer Material

Foam Layer Material Picture

Compare High-Res

Saatva Classic (Plush Soft) Foam Layer Material Picture

Quilted Top Fill

Memory Foam + Polyfoam + Fiber Fill

Polyfoam + Fiber Fill

Upper Comfort Foam @ Head/Feet

Memory Foam

N/A

Upper Comfort Foam @ Lumbar

Memory Foam

Lower Comfort Foam @ Head/Feet

N/A

Polyfoam

Lower Comfort Foam @ Lumbar

N/A

Polyfoam

Transition Foam

Polyfoam

Support Foam

N/A

Foam Layer Mass Density

6.8

5.7

Quilted Top Fill

25 kg/m³ (1.6 lb/cu.ft.)

21 kg/m³ (1.3 lb/cu.ft.)

Quilted Top Fill Foam Density vs. Reference

0.7

0.4

Upper Comfort Foam @ Head/Feet

68 kg/m³ (4.2 lb/cu.ft.)

N/A

Upper Comfort Foam @ Head/Feet Density vs. Reference

1.1

N/A

Upper Comfort Foam @ Lumbar

68 kg/m³ (4.2 lb/cu.ft.)

35 kg/m³ (2.2 lb/cu.ft.)

Upper Comfort Foam @ Lumbar Density vs. Reference

1.1

0.5

Lower Comfort Foam @ Head/Feet

N/A

24 kg/m³ (1.5 lb/cu.ft.)

Lower Comfort Foam @ Head/Feet Density vs. Reference

N/A

0.6

Lower Comfort Foam @ Lumbar

N/A

24 kg/m³ (1.5 lb/cu.ft.)

Lower Comfort Foam @ Lumbar Density vs. Reference

N/A

0.6

Transition Foam

30 kg/m³ (1.8 lb/cu.ft.)

27 kg/m³ (1.7 lb/cu.ft.)

Transition Foam Density vs. Reference

1.0

0.8

Support Foam

N/A

Support Foam Density vs Reference

N/A

Foam Layer Thickness

Foam Layer Thickness Picture

Compare High-Res

Saatva Classic (Plush Soft) Foam Layer Thickness Picture

Quilted Top

5.0 cm (2.0")

6.5 cm (2.6")

Upper Comfort Foam @ Head/Feet

5.1 cm (2.0")

N/A

Upper Comfort Foam @ Lumbar

5.1 cm (2.0")

1.0 cm (0.4")

Lower Comfort Foam @ Head/Feet

N/A

2.2 cm (0.9")

Lower Comfort Foam @ Lumbar

N/A

2.2 cm (0.9")

Transition Foam

2.5 cm (1.0")

2.4 cm (0.9")

Support Foam

N/A

Spring Layer Dimensions

Spring Layer Height Picture

Compare High-Res

Saatva Classic (Plush Soft) Spring Layer Height Picture

Spring Layer Density Picture

Compare High-Res

Saatva Classic (Plush Soft) Spring Layer Density Picture

Comfort Layer Height

N/A

11.5 cm (4.5")

Comfort Layer Coil Density

N/A

240 coils/m² (22 coils/ft²)

Comfort Layer Coil Gauge

N/A

15 gauge

Support Layer Height

20.5 cm (8.1")

14.5 cm (5.7")

Support Layer Coil Density

248 coils/m² (23 coils/ft²)

132 coils/m² (12 coils/ft²)

Support Layer Coil Gauge @ Head/Feet

14 gauge

13 gauge

Support Layer Coil Gauge @ Lumbar

13 gauge

Foam Layer Firmness

Comfort Layer IPD

Preview Graph

Saatva Classic (Plush Soft) Comfort Layer IPD

Transition & Support Layer IPD

Preview Graph

Saatva Classic (Plush Soft) Transition & Support Layer IPD

Quilted Top Fill 25% IPD

1.4 kPa

1.5 kPa

Upper Comfort Foam @ Head/Feet 25% IPD

2.2 kPa

N/A

Upper Comfort Foam @ Lumbar 25% IPD

2.2 kPa

1.7 kPa

Lower Comfort Foam @ Head/Feet 25% IPD

N/A

2.2 kPa

Lower Comfort Foam @ Lumbar 25% IPD

N/A

2.2 kPa

Transition Foam 25% IPD

4.3 kPa

5.0 kPa

Support Foam 25% IPD

N/A

Spring Layer Firmness

Comfort Layer Firmness

Preview Graph

Saatva Classic (Plush Soft) Comfort Layer Firmness

Support Layer Firmness

Preview Graph

Saatva Classic (Plush Soft) Support Layer Firmness

Spring Layer Firmness

Normalized Comfort Layer Stiffness @ Head/Feet

N/A

57 Pa/mm

Normalized Comfort Layer Stiffness @ Lumbar

N/A

55 Pa/mm

Normalized Support Layer Stiffness @ Head/Feet

81 Pa/mm

91 Pa/mm

Normalized Support Layer Stiffness @ Lumbar

54 Pa/mm

96 Pa/mm

Foam Layer Resilience

Foam Layer Resilience Video

Quilted Top Fill

45%

44%

Upper Comfort Foam @ Head/Feet

N/A

Upper Comfort Foam @ Lumbar

18%

Lower Comfort Foam @ Head/Feet

N/A

47%

Lower Comfort Foam @ Lumbar

N/A

47%

Transition Foam

47%

45%

Support Foam

N/A

Spring Layer Bounciness

Comfort Spring Layer Bounciness Video

Support Spring Layer Bounciness Video

Comfort Spring Layer Maximum Rebound Height

N/A

39.0 cm (15.4")

Support Spring Layer Maximum Rebound Height

46.0 cm (18.1")

69.0 cm (27.2")

Check Price

California King

Midnight Luxe 2025

California King

Classic (Plush Soft - 14.5")

Full

Midnight Luxe 2025

Full

Classic (Plush Soft - 14.5")

King

Midnight Luxe 2025

King

Classic (Plush Soft - 14.5")

Queen

Midnight Luxe 2025

Queen

Classic (Plush Soft - 14.5")

Split King

Classic (Plush Soft - 14.5")

Twin

Midnight Luxe 2025

Twin

Classic (Plush Soft - 14.5")

Twin XL

Midnight Luxe 2025

Twin XL

Classic (Plush Soft - 14.5")