Products
Tested using Methodology v1.2
Updated Jul 24, 2026 02:38 AM
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Tested using Methodology v1.2
Updated Aug 14, 2026 06:31 PM
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Mattress Type
Foam
Bed-In-A-Box
Yes
Upper Comfort Foam @ LumbarMemory Foam
Firmness Level
Medium (46 Pa/mm)
Mattress Type
Foam
Bed-In-A-Box
Yes
Upper Comfort Foam @ LumbarMemory Foam
Firmness Level
Medium-Plush (40 Pa/mm)
Our Verdict
Leesa Original
SweetNight CoolNest Pro
The Leesa Original and the SweetNight CoolNest Pro are pretty evenly matched, but the SweetNight comes out ahead overall. While the Leesa is more supportive, the SweetNight offers better pressure relief, making it slightly more comfortable for side sleeping. The SweetNight does a better job dissipating motion, so it's a better bet if you're looking to sleep peacefully with a partner who tosses and turns, and it's more responsive, so it's easier to move around on. It's also more cooling, making it an excellent option if you tend to wake up overheated.
Variants
- Original (California King)
- Original (King)
- CoolNest Pro (14") (King)
- CoolNest Pro (14") (Queen)
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California King
Original
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King
Original
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King
CoolNest Pro (14")
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Queen
Original
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Queen
CoolNest Pro (14")
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Twin
Original
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Twin XL
Original
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Main Differences for
Side Sleeping
Side Sleeping
Threshold
Side Sleeping
7.6
7.7
Full Comparison
Design
Style
Style Picture
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Mattress Type
Foam
Foam
Bed-In-A-Box
Yes
Yes
Quilted Top Layer
No
No
Grab Handles
No
No
Thickness
25.1 cm (9.9")
34.2 cm (13.5")
Performance
Firmness
Head/Feet Firmness
Preview Graph
Preview Graph
Lumbar Firmness
Preview Graph
Preview Graph
Firmness Video
Normalized Stiffness @ Head/Feet
44 Pa/mm
38 Pa/mm
Normalized Stiffness @ Lumbar
46 Pa/mm
40 Pa/mm
Firmness Level
Medium (46 Pa/mm)
Medium-Plush (40 Pa/mm)
Body Conformity
7.8
7.8
Shoulder Indentation vs. Body Weight
Preview Graph
Preview Graph
Body Conformity Picture 1
Body Conformity Picture 2
Indent @ 50 kg (110 lb)
51 mm (2.0")
47 mm (1.8")
Indent @ 80 kg (176 lb)
74 mm (2.9")
74 mm (2.9")
Indent @ 110 kg (242 lb)
85 mm (3.4")
101 mm (4.0")
Support
7.2
6.7
Pelvis Indentation vs. Body Weight
Preview Graph
Preview Graph
Indent Difference @ 50 kg (110 lb)
23 mm (0.9")
19 mm (0.7")
Indent Difference @ 80 kg (176 lb)
21 mm (0.8")
23 mm (0.9")
Indent Difference @ 110 kg (242 lb)
16 mm (0.6")
30 mm (1.2")
Bounciness
4.2
6.7
Bounciness Video
Maximum Rebound Height
4.0 cm (1.6")
11.0 cm (4.3")
Comfort Layers Envelopment
7.2
7.7
Sinking & Contouring Picture
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Sinking Depth
5.2 cm (2.0")
4.8 cm (1.9")
Diameter Of Distortion
29.3 cm (11.5")
26.9 cm (10.6")
Responsiveness
8.3
9.0
Responsiveness Video
Response Time
0.8 s
0.6 s
Motion Isolation
8.2
8.7
Motion Isolation Video
Head/Feet Motion Isolation
Preview Graph
Preview Graph
Lumbar Motion Isolation
Preview Graph
Preview Graph
Peak Acceleration @ Head/Feet
0.86 g
0.47 g
Dissipation Time @ Head/Feet
0.26 s
0.33 s
Peak Acceleration @ Lumbar
4.22 g
2.57 g
Dissipation Time @ Lumbar
0.29 s
0.34 s
Edge Support
5.9
5.1
Naturalistic Loading Pad Video
Naturalistic Loading Pad
Preview Graph
Preview Graph
Small Platen
Preview Graph
Preview Graph
Naturalistic Loading Pad Indentation
151 mm
182 mm
Small Platen Indentation @ 0 mm From Edge
186 mm
201 mm
Small Platen Indentation @ 150 mm From Edge
139 mm
155 mm
Increased Indentation @ Mattress Edge
47 mm
46 mm
Cooling
8.3
8.7
Cooling Graph
Preview Graph
Preview Graph
Energy Transferred Over 1st Hour
69 kJ
73 kJ
Energy Transferred Over 8 Hours
174 kJ
186 kJ
Components
Cover
Cover Picture
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Sleeping Surface Material
Polyester, Viscose
Polyester
Removable
Yes
Yes
Machine Washable
No
No
Edge Construction
Edge Support Picture
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Edge Component
None
None
Foam Layer Material
Foam Layer Material Picture
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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
N/A
Memory Foam
Lower Comfort Foam @ Lumbar
N/A
Memory Foam
Transition Foam
Memory Foam
Polyfoam
Support Foam
Polyfoam
Polyfoam
Foam Layer Mass Density
6.0
6.1
Quilted Top Fill
N/A
N/A
Quilted Top Fill Foam Density vs. Reference
N/A
N/A
Upper Comfort Foam @ Head/Feet
44 kg/m³ (2.8 lb/cu.ft.)
52 kg/m³ (3.2 lb/cu.ft.)
Upper Comfort Foam @ Head/Feet Density vs. Reference
0.7
0.8
Upper Comfort Foam @ Lumbar
44 kg/m³ (2.8 lb/cu.ft.)
52 kg/m³ (3.2 lb/cu.ft.)
Upper Comfort Foam @ Lumbar Density vs. Reference
0.7
0.8
Lower Comfort Foam @ Head/Feet
N/A
32 kg/m³ (2.0 lb/cu.ft.)
Lower Comfort Foam @ Head/Feet Density vs. Reference
N/A
0.5
Lower Comfort Foam @ Lumbar
N/A
32 kg/m³ (2.0 lb/cu.ft.)
Lower Comfort Foam @ Lumbar Density vs. Reference
N/A
0.5
Transition Foam
41 kg/m³ (2.6 lb/cu.ft.)
29 kg/m³ (1.8 lb/cu.ft.)
Transition Foam Density vs. Reference
0.6
0.9
Support Foam
29 kg/m³ (1.8 lb/cu.ft.)
28 kg/m³ (1.7 lb/cu.ft.)
Support Foam Density vs Reference
0.9
0.8
Foam Layer Thickness
Foam Layer Thickness Picture
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Quilted Top
N/A
N/A
Upper Comfort Foam @ Head/Feet
5.5 cm (2.2")
2.5 cm (1.0")
Upper Comfort Foam @ Lumbar
5.5 cm (2.2")
2.5 cm (1.0")
Lower Comfort Foam @ Head/Feet
N/A
5.0 cm (2.0")
Lower Comfort Foam @ Lumbar
N/A
5.0 cm (2.0")
Transition Foam
5.0 cm (2.0")
9.5 cm (3.7")
Support Foam
14.9 cm (5.9")
10.5 cm (4.1")
Spring Layer Dimensions
Spring Layer Height Picture
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Spring Layer Density Picture
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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
Preview Graph
Transition & Support Layer IPD
Preview Graph
Preview Graph
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
N/A
1.7 kPa
Lower Comfort Foam @ Lumbar 25% IPD
N/A
1.7 kPa
Transition Foam 25% IPD
1.6 kPa
2.6 kPa
Support Foam 25% IPD
4.5 kPa
3.3 kPa
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
N/A
N/A
Normalized Support Layer Stiffness @ Lumbar
N/A
N/A
Foam Layer Resilience
Foam Layer Resilience Video
Quilted Top Fill
N/A
N/A
Upper Comfort Foam @ Head/Feet
19%
20%
Upper Comfort Foam @ Lumbar
19%
20%
Lower Comfort Foam @ Head/Feet
N/A
4%
Lower Comfort Foam @ Lumbar
N/A
4%
Transition Foam
5%
49%
Support Foam
52%
39%
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
N/A
N/A
Check Price
California King
Original
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King
Original
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King
CoolNest Pro (14")
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Queen
Original
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Queen
CoolNest Pro (14")
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Amazon
Twin
Original
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Amazon
Twin XL
Original
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Amazon
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Leesa Original
SweetNight CoolNest Pro
Comments
Leesa Original vs SweetNight CoolNest Pro: Main Discussion
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