Products
Tested using Methodology v1.2
Updated Sep 02, 2026 05:35 PM
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Tested using Methodology v1.2
Updated Sep 17, 2026 02:59 PM
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Mattress Type
Foam
Bed-In-A-Box
Yes
Upper Comfort Foam @ LumbarMemory Foam
Firmness Level
Medium-Plush (40 Pa/mm)
Mattress Type
Foam
Bed-In-A-Box
Yes
Upper Comfort Foam @ LumbarMemory Foam
Firmness Level
Medium (47 Pa/mm)
Our Verdict
SweetNight CoolNest Pro
SweetNight CoolNest Ultra
The SweetNight CoolNest Pro and SweetNight CoolNest Ultra perform quite similarly, and you may prefer either. Both are best-suited for average and heavier side sleepers, but the Pro is more responsive and feels easier to move around on. The pricier Ultra has a firmer feel and better support, making it a better option for some combination sleepers. It has significantly better edge support. You may also prefer it if you like slow-moving, hugging memory foam.
Variants
- CoolNest Pro (14") (King)
- CoolNest Pro (14") (Queen)
- CoolNest Ultra (16") (King)
- CoolNest Ultra (16") (Queen)
Check Price
King
CoolNest Pro (14")
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King
CoolNest Ultra (16")
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Amazon
Queen
CoolNest Pro (14")
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Amazon
Queen
CoolNest Ultra (16")
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Amazon
Main Differences for
Side Sleeping
Side Sleeping
Threshold
Side Sleeping
7.7
7.6
Full Comparison
Design
Style
Style Picture
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Compare High-Res
Mattress Type
Foam
Foam
Bed-In-A-Box
Yes
Yes
Quilted Top Layer
No
No
Grab Handles
No
No
Thickness
34.2 cm (13.5")
39.8 cm (15.7")
Performance
Firmness
Head/Feet Firmness
Preview Graph
Preview Graph
Lumbar Firmness
Preview Graph
Preview Graph
Firmness Video
Normalized Stiffness @ Head/Feet
38 Pa/mm
45 Pa/mm
Normalized Stiffness @ Lumbar
40 Pa/mm
47 Pa/mm
Firmness Level
Medium-Plush (40 Pa/mm)
Medium (47 Pa/mm)
Body Conformity
7.8
7.5
Shoulder Indentation vs. Body Weight
Preview Graph
Preview Graph
Body Conformity Picture 1
Body Conformity Picture 2
Indent @ 50 kg (110 lb)
47 mm (1.8")
46 mm (1.8")
Indent @ 80 kg (176 lb)
74 mm (2.9")
70 mm (2.8")
Indent @ 110 kg (242 lb)
101 mm (4.0")
88 mm (3.4")
Support
6.7
7.1
Pelvis Indentation vs. Body Weight
Preview Graph
Preview Graph
Indent Difference @ 50 kg (110 lb)
19 mm (0.7")
18 mm (0.7")
Indent Difference @ 80 kg (176 lb)
23 mm (0.9")
22 mm (0.9")
Indent Difference @ 110 kg (242 lb)
30 mm (1.2")
22 mm (0.9")
Bounciness
6.7
4.8
Bounciness Video
Maximum Rebound Height
11.0 cm (4.3")
5.0 cm (2.0")
Comfort Layers Envelopment
7.7
7.9
Sinking & Contouring Picture
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Sinking Depth
4.8 cm (1.9")
4.6 cm (1.8")
Diameter Of Distortion
26.9 cm (10.6")
25.5 cm (10.0")
Responsiveness
9.0
5.6
Responsiveness Video
Response Time
0.6 s
2.3 s
Motion Isolation
8.7
8.9
Motion Isolation Video
Head/Feet Motion Isolation
Preview Graph
Preview Graph
Lumbar Motion Isolation
Preview Graph
Preview Graph
Peak Acceleration @ Head/Feet
0.47 g
0.55 g
Dissipation Time @ Head/Feet
0.33 s
0.35 s
Peak Acceleration @ Lumbar
2.57 g
2.35 g
Dissipation Time @ Lumbar
0.34 s
0.27 s
Edge Support
5.1
7.1
Naturalistic Loading Pad Video
Naturalistic Loading Pad
Preview Graph
Preview Graph
Small Platen
Preview Graph
Preview Graph
Naturalistic Loading Pad Indentation
182 mm
158 mm
Small Platen Indentation @ 0 mm From Edge
201 mm
166 mm
Small Platen Indentation @ 150 mm From Edge
155 mm
143 mm
Increased Indentation @ Mattress Edge
46 mm
23 mm
Cooling
8.7
7.8
Cooling Graph
Preview Graph
Preview Graph
Energy Transferred Over 1st Hour
73 kJ
68 kJ
Energy Transferred Over 8 Hours
186 kJ
157 kJ
Components
Cover
Cover Picture
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Sleeping Surface Material
Polyester
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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Compare High-Res
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
Memory Foam
Memory Foam
Lower Comfort Foam @ Lumbar
Memory Foam
Memory Foam
Transition Foam
Polyfoam
Polyfoam
Support Foam
Polyfoam
Polyfoam
Foam Layer Mass Density
6.1
6.0
Quilted Top Fill
N/A
N/A
Quilted Top Fill Foam Density vs. Reference
N/A
N/A
Upper Comfort Foam @ Head/Feet
52 kg/m³ (3.2 lb/cu.ft.)
54 kg/m³ (3.4 lb/cu.ft.)
Upper Comfort Foam @ Head/Feet Density vs. Reference
0.8
0.8
Upper Comfort Foam @ Lumbar
52 kg/m³ (3.2 lb/cu.ft.)
54 kg/m³ (3.4 lb/cu.ft.)
Upper Comfort Foam @ Lumbar Density vs. Reference
0.8
0.8
Lower Comfort Foam @ Head/Feet
32 kg/m³ (2.0 lb/cu.ft.)
48 kg/m³ (3.0 lb/cu.ft.)
Lower Comfort Foam @ Head/Feet Density vs. Reference
0.5
0.8
Lower Comfort Foam @ Lumbar
32 kg/m³ (2.0 lb/cu.ft.)
48 kg/m³ (3.0 lb/cu.ft.)
Lower Comfort Foam @ Lumbar Density vs. Reference
0.5
0.8
Transition Foam
29 kg/m³ (1.8 lb/cu.ft.)
33 kg/m³ (2.1 lb/cu.ft.)
Transition Foam Density vs. Reference
0.9
0.5
Support Foam
28 kg/m³ (1.7 lb/cu.ft.)
30 kg/m³ (1.9 lb/cu.ft.)
Support Foam Density vs Reference
0.8
1.0
Foam Layer Thickness
Foam Layer Thickness Picture
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Compare High-Res
Quilted Top
N/A
N/A
Upper Comfort Foam @ Head/Feet
2.5 cm (1.0")
2.5 cm (1.0")
Upper Comfort Foam @ Lumbar
2.5 cm (1.0")
2.5 cm (1.0")
Lower Comfort Foam @ Head/Feet
5.0 cm (2.0")
1.0 cm (0.4")
Lower Comfort Foam @ Lumbar
5.0 cm (2.0")
1.0 cm (0.4")
Transition Foam
9.5 cm (3.7")
6.5 cm (2.6")
Support Foam
10.5 cm (4.1")
28.0 cm (11.0")
Spring Layer Dimensions
Spring Layer Height Picture
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Compare High-Res
Spring Layer Density Picture
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Compare High-Res
Comfort Layer Height
N/A
N/A
Comfort Layer Coil Density
N/A
Comfort Layer Coil Gauge
N/A
N/A
Support Layer Height
N/A
N/A
Support Layer Coil Density
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
Transition & Support Layer IPD
Preview Graph
Quilted Top Fill 25% IPD
N/A
Upper Comfort Foam @ Head/Feet 25% IPD
1.7 kPa
Upper Comfort Foam @ Lumbar 25% IPD
1.7 kPa
Lower Comfort Foam @ Head/Feet 25% IPD
1.7 kPa
Lower Comfort Foam @ Lumbar 25% IPD
1.7 kPa
Transition Foam 25% IPD
2.6 kPa
Support Foam 25% IPD
3.3 kPa
Spring Layer Firmness
Comfort Layer Firmness
Support Layer Firmness
Spring Layer Firmness
Normalized Comfort Layer Stiffness @ Head/Feet
N/A
Normalized Comfort Layer Stiffness @ Lumbar
N/A
Normalized Support Layer Stiffness @ Head/Feet
N/A
Normalized Support Layer Stiffness @ Lumbar
N/A
Foam Layer Resilience
Foam Layer Resilience Video
Quilted Top Fill
N/A
N/A
Upper Comfort Foam @ Head/Feet
20%
11%
Upper Comfort Foam @ Lumbar
20%
11%
Lower Comfort Foam @ Head/Feet
4%
7%
Lower Comfort Foam @ Lumbar
4%
7%
Transition Foam
49%
4%
Support Foam
39%
38%
Spring Layer Bounciness
Comfort Spring Layer Bounciness Video
Support Spring Layer Bounciness Video
Comfort Spring Layer Maximum Rebound Height
N/A
Support Spring Layer Maximum Rebound Height
N/A
Check Price
King
CoolNest Pro (14")
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King
CoolNest Ultra (16")
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Amazon
Queen
CoolNest Pro (14")
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Amazon
Queen
CoolNest Ultra (16")
SEE PRICE
Amazon
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SweetNight CoolNest Pro
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Comments
SweetNight CoolNest Pro vs SweetNight CoolNest Ultra: Main Discussion
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