SweetNight CoolNest Pro Review

In This Review
Performance Tests | Firmness | Support & Sleeping Positions | Design | Materials | Comparisons | FAQs

At NapLab, we put each mattress to the test.

We test 10 different factors that impact the performance, comfort, and feel of the mattress. We then take the results of those tests and compare them to every mattress we’ve tested to date.

Check out the full performance table below to see how this mattress ranks:

Factor	SweetNight CoolNest Pro	Average
Overall Score	8.27	8.54
Price (Queen)	$600	$1,139 (Memory Foam only)
Cooling – Score	8.0	8.6
Sinkage – Depth	2.75″	2.26″
Sinkage – Feel	Very Deep	Moderate
Motion Transfer – Score	9.1	8.2
Motion Transfer – Acceleration	7.06 m/s²	8.83 m/s²
Response Time – Score	9.5	8.7
Response Time – Mostly Recovered	0.2 sec.	0.4 sec.
Response Time – Fully Recovered	0.9 sec.	1.0 sec.
Bounce – Height	7.05″	8.60″
Bounce – Feel	Low	Moderate
Edge Support – Score	7.8	8.8
Edge Support – Sitting	5.00″	3.82″
Edge Support – Lying	Good	Good
Sex – Score	7.3	8.2
Pressure Relief – Score	8.0	8.6
Comfort Layer Thickness	7.25″	4.38″
Mattress Thickness	13.75″	12.36″
Off-Gassing – Score	6.9	7.9
Off-Gassing – Smell	Strong	Strong
Off-Gassing – Days	11 days	8 days
Company – Score	9.0	9.0
Trial	100 nights	240 nights
Warranty	10 years	40% have lifetime warranties, average of other 60% of mattresses is 13 years

How is SweetNight CoolNest Pro Different?

The SweetNight CoolNest Pro is a 13.75″ memory foam mattress with an overall performance level that is below average but paired with a price that is also significantly below average. Compared to the average memory foam mattress ($1,139), the CoolNest Pro saves $539 on a queen mattress.

Advantages

Beyond the ultra-low price, the CoolNest Pro also offers lower motion transfer and faster material response time. The performance isn’t exceptional, but if you are looking for a budget mattress, then the SweetNight can be a solid value.

Neutral Factors

Neutral factors include very deep levels of sinkage and low levels of bounce. Both sinkage and bounce are neither good nor bad, as different sleepers will have different preferences in these areas.

The mattress’s company score is also considered a neutral factor since it scored right on par with the average.

Disadvantages

Given its low price, the SweetNight CoolNest Pro does have a few performance disadvantages that are worth considering. Cooling performance is worse than average and edge support struggles as well.

When sitting at the edge of the mattress, we measured 5 inches of sinkage, which is significantly deeper than the 3.82″ average.

The sex score and off-gassing score are significantly below the average level as well. We’re not expecting perfect performance at this price point, but if these factors are deal breakers for you, it’s important to consider all disadvantages.

The SweetNight CoolNest Pro has good cooling. During our tests, I felt a slight level of heat retention around my body, but it was nothing I’d describe as “hot”.

The good, but not amazing, cooling performance is a product of the design and materials. This is an all-foam mattress with a primarily memory foam comfort layer.

The all-foam design isn’t ideal for breathability. In addition, the memory foam seems to be absorbing and retaining more heat. That being said, that mattress does have some materials that are helping.

• Baseline Temperature – the temperature of the mattress before anyone lies on it
• Maximum Temperature (0 minute) – the temperature of the mattress after lying on it for 15 minutes
• Ending Temperature (5 minute) – the temperature of the mattress after being lied upon and having no one on it for 5 minutes

First, we have the thin, non-quilted cover, which has a slightly cool-to-the-touch feel. That cover is fairly breathable and is a bit cooler when you first get into bed. Notably, it does lose its cooling feeling after lying in the same position for a few minutes.

In addition, the mattress also has phase change materials in the top foam layer and gel infused within the 2nd foam comfort layer. Both of these are certainly helping with the cooling and yet, they aren’t enough to overcome the all-foam memory foam design.

In our objective temperature tests, we measured a max surface level temperature of 91.1° F. This is 0.8° warmer than the average of 90.3° F, based on all of our tests to date.

After getting off the mattress, the temperature declined by 6.1 degrees from minutes 0 to 1, which is 1.3 degrees cooler than the average 0 to 1 minute decline of 4.8 degrees.

When we consider the combination of objective data, my subjective experiences, and an analysis of the materials, I’m confident in my view that cooling is good.

The SweetNight CoolNest Pro has very deep sinkage. During our tests, we measured a pressure point sinkage depth of 2.75″. This is 0.49″ more sinkage than the average sinkage depth of 2.26″, based on all of our tests to date.

The level of sinkage is documented in the image below.

The mattress creates a dramatic hug around the body. That feel is what we expect from a memory foam mattress. The thin, non-quilted cover creates a more immediate and pronounced hugging sensation.

That said, the foams are also a bit more responsive than many other memory foams we’ve tested. The faster responsiveness helps to avoid any type of excessive hug or restrictive feel. Nevertheless, this mattress still has a distinctly memory foam feel with lots of hug and lots of body contouring.

The SweetNight CoolNest Pro has a very low level of motion transfer. During our tests, we measured a total acceleration range of 7.06 m/s². This is 20% less motion transfer than the average of 8.82 m/s².

The lower motion transfer is a product of the all-foam design and thick memory foam comfort layer. Foam, especially memory foam, greatly absorbs and disperses energy. The foam material is simply less resilient than coils and as a result, doesn’t create much bounce.

The level of motion transfer is also documented in the video below.

In our motion transfer chart, which visualizes our accelerometer data, we can see the highest motion peaks from 0 to 0.2 seconds. Motion drops off significantly immediately thereafter. By 0.61 seconds, we’ve returned to near-zero levels of energy, which is 0.31 seconds shorter than the average motion duration of 0.92 seconds.

When we look at the complete picture of motion transfer data, we see both the motion intensity and motion duration are better than average. Overall, the mattress does a fantastic job at reducing and mitigating motion, creating incredibly low motion transfer for sleepers.

The SweetNight CoolNest Pro has an extremely fast mostly recovered response time and a fast fully recovered response time.

In our mostly recovered test, we measured a recovery speed of 0.2 seconds, which is 0.22 seconds faster than the average of 0.42 seconds, based on all of our tests to date.

In our fully recovered responsiveness test, we measured a recovery speed of 0.9 seconds, which is 0.12 seconds faster than the average of 1.02 seconds. While the full material recovery speed is about average, the recovery speed is notably better than average.

The level of responsiveness is documented in the video below.

I was quite surprised at the responsiveness speed, as memory foam mattresses typically are slow to reform back to their original shapes. The faster material recovery speeds help make the mattress easier to move around on and avoid creating any type of “stuck” or reactive feeling.

The SweetNight CoolNest Pro has a low level of bounce. During our tests, we measured a total bounce height of 7.05″. This is 1.56″ less bounce than the average of 8.61″, based on all of our tests to date.

The lower level of a bounce is a product of the all-foam design and thick memory foam comfort layer. Foam greatly absorbs and disperses energy, which means there is less energy to return to the surface as bounce. That lower level of bounce is a major reason why motion transfer is considerably better than average.

The level of bounce is also documented in the video below.

That said, sex performance struggles, as the lower bounce makes sex more strenuous and tiring. As a result, it’s worth considering what is most important to you: lower motion transfer? Or better sex performance?

The SweetNight CoolNest Pro has fair sitting edge support and good lying edge support.

In our sitting edge support test, we measured a sitting sinkage compression of 5.00″. This is 1.18″ more sitting sinkage than the average of 3.82″, based on all of our tests to date.

The level of edge support while seated is documented in the images below.

While lying directly on the edge of the mattress, I felt that the support was good in all sleeping positions. Notably, the CoolNest Pro does not use any type of reinforced edge support foam. That design choice, in addition to the very deep sinkage and memory foam comfort layer, set the stage for worse edge support.

Along the edge of the mattress, the body-contouring nature of memory foam creates a weakening of support. This is because the memory foam is sinking down and contouring to the shape of the body, but there isn’t enough material along the far edge to fully contour and support the body.

The level of edge support while lying is documented in the images below.

As a result, I can feel the supportive feel weaken along the edge, as there just isn’t enough material there. To be fair, this isn’t a problem with SweetNight specifically, but rather a challenge that most memory foam mattresses share.

The SweetNight CoolNest Pro has fair sex performance. The biggest bright spot is the minimal noise. So if nothing else, the mattress is quiet.

With a middling performance, we have pressure relief and cooling, which both earned good, but not great scores. While there is plenty of room for improvement, both pressure relief and cooling should be good enough for most sleepers.

Where the mattress struggles the most is edge support and bounce. In our edge tests, we measured a sitting sinkage compression of 5.00″. This is considerably worse than average and that means the edge just isn’t a functional or usable part of the mattress for amorous activities.

Sex Factor	Factor Weight	Score	Rating
Bounce	65%	6.9	Low
Edge Support	20%	7.5	Fair
Noise	5%	10	Minimal
Pressure Relief	5%	8.0	Good
Cooling	5%	8.0	Good

In addition, bounce is also worse than average. We measured 7.05” of bounce. When it comes to sex, more bounce is almost always better than less. The lower level of bounce makes sex more strenuous, more tiring, and less fun. Overall sex performance on the CoolNest Pro leaves much to be desired.

The SweetNight CoolNest Pro has a good level of pressure relief.

During our tests, I felt no significant pressure points on my body, and yet, it was also clear from the feeling that pressure relief didn’t rise to the excellent or outstanding level. The mattress is equipped with 7.25″ of comfort material, which is 2.89″ more comfort material than the average comfort layer thickness of 4.36″, based on all of our tests to date.

The CoolNest Pro uses a thin, non-quilted cover. This cover type allows the body to come into more immediate and pronounced contact with the foam layers, allowing you to feel the memory foam more significantly around the body.

Moreover, this mattress has deeper sinkage, which many side sleepers will find beneficial for comfort and pressure relief. That said, some back and most stomach sleepers may find the sinkage too deep, creating pressure points.

When I consider our objective pressure mapping tests, material thickness, material quality, and my subjective experience on the mattress, I’m confident most sleepers will find the pressure relief to be good.

The SweetNight CoolNest Pro had a strong smell upon the initial unboxing. The mattress smelled for 11 days. This is 3.4 days longer than the average smell duration of 7.6 days.

SweetNight mattresses come with a 100-night trial period and a 10-year warranty. Shipping and returns are both free.

Company Factor	Factor Weight	Score	Data
Returns	40%	10	$0
Trial Period	30%	8.0	100 nights
Warranty	20%	8.0	10 years
Shipping	10%	10	$0
Country of Origin	0%		Indonesia

Comparing 121+ brands tested to date, the average trial period is 240 nights, 118 nights more than SweetNight offers. The average warranty is 13 years, which is 3 years more than this mattress. Additionally, this excludes the 43% of mattresses that offer lifetime warranties.

The SweetNight CoolNest Pro is only available in a single firmness option, which they call “Medium.”

It is also available in three different height options – 12”, 14”, and 16”, with more foam material being used in those thicker versions. For that reason, it’s quite likely that each height variant will have a slightly different feel.

We tested the 14” version for this review, which we rate as a medium-firm feel. This is a rating of 6 out of 10, where 10 is the most firm. This firmness level is suitable for a wide range of sleepers and sleeping positions.

Support on the SweetNight CoolNest Pro is good. During our tests, I felt well supported on my side and back. That said, when I lay on my stomach, the sinkage felt too deep, creating improper spinal alignment.

The mattress is equipped with a 6.5″ support layer. This is 1.48″ thinner than the average support layer thickness of 7.98″, based on all of our tests to date.

Support Factor	Data
Comfort Layer	7.25″
Support Layer	6.50″
Firmness	Medium-Firm
Body Contour	Dramatic
Zoned Support	Yes
Reinforced Edge	No

Mattresses that create the best support are able to do two big things. First up, they fully support the body, creating a neutral spinal alignment. And second, they create ample comfort and pressure relief. In terms of body support, the CoolNest Pro did a nice job while on my side and back.

However, when I lay on my stomach, the sinkage was too deep, creating a curve in my spine. In addition, pressure relief on the mattress was sufficient. There’s certainly room for improvement, but at this price point, it’s hard to complain too much.

This mattress is available in a single firmness level that we rated a medium-firm feel. That’s a 6 out of 10 on our firmness scale, where 10 is the most firm. This firmness works well for most sleepers.

Check out the table below to see the sleeper weights and sleeping positions that would be best suited for this mattress.

Sleeper Weight	Stomach Sleeper	Side Sleeper	Back Sleeper
Under 150 lbs.	No	Yes	Yes
150-250 lbs.	No	Yes	Yes
250-300 lbs.	No	Yes	Yes

In all mattress tests, we make it a point to cut the mattress open to assess the material quality. In doing so, we see the poly foam measured from 1.89 to 3.07 PCF (pounds per cubic foot). The 1.89 PCF is well below what we ideally want to see, which is all the more concerning given that it’s 3.75” of total thickness.

That said, the 3.07 PCF poly foam at the top of the comfort layer stack is an excellent density. Denser foams typically perform better, last longer, and sag less. When we measured the memory foam, we saw a 1.91 PCF. Memory foam requires a greater density to perform well and last a long time, with a 4.0 PCF or higher being ideal.

Suffice to say, a 1.91 PCF memory foam is far from what we want to see. In my view, it’s fair to say these density levels are far from great. And yet, given the $599 price point for the 14” version, it’s what I expect to see.

Last but not least, this mattress does use zoned support. Zoned support creates more support for heavier parts of your body, which helps improve support and reduce sagging in those areas. That being said, this type of zoning is through channel cuts in the support foam.

While it’s better than nothing, in my view, this is the least impactful type of zoned support. Specially cut and placed foam layers or zoned coil units offer superior performance, in my view.

Based on all of my tests to date, an analysis of the materials, and my subjective experiences, I’m confident most sleepers will find support on the SweetNight CoolNest Pro is good.

The SweetNight CoolNest Pro is a 13.75″ memory foam mattress that comes in a single firmness option—Medium-Firm. We tested the 14-inch version but this mattress is also available in a 12-inch or 16-inch version.

Design Factor	Data
Type	Memory Foam
Thickness	13.75″
Cover Type	Thin
Weight	80 lbs.
Has Handles	No
Fiberglass-Free	Yes
Ships in a Box	Yes

Within the Sweet Night collection, the CoolNest Pro memory foam mattress is a mid-tier memory foam option. It is designed to bridge the gap between the original CoolNest memory foam mattress and the more premium Ultra memory foam version.

The SweetNight CoolNest Pro is 13.75″ thick and contains a combination of different foam types. From top to bottom, here is a full list of the materials used in this mattress:

Layer Type	Thickness	Manufacturer’s Specs	Tested Specs
Thin Cover	0.50″	Not Available	N/A
Poly Foam	1.00″	Not Available	3.07 PCF
Memory Foam	2.00″	Not Available	1.91 PCF
Poly Foam	3.75″	Not Available	1.89 PCF
Support Foam	6.50″	Not Available	1.64 PCF

The SweetNight CoolNest Pro has a 0.5″ thin cover that is designed to be cool to the touch. SweetNight calls this cover their “gradient cooling ice silk cover”.

This is the same cover as the one we tested on the CoolNest Ultra memory foam mattress.

There are no handles on the sides of this mattress, but at this price point that’s not really a feature that I would expect to see.

The comfort layer is 7.25″ thick, which includes the cover, and is made of three different layers of foam.

Beneath the cover is a 1.0″ poly foam (white + blue speckled foam) followed by a 2.0″ memory foam layer (blue foam).

The thickest foam within the comfort layer is a 3.75″ poly foam (gray foam).

These three different foam layers work together to provide a balanced feel. It maintains a modern memory foam feel with a dramatic level of contour while also being paired with fast material response time.

The support layer is 6.50″ thick and made of a Single layer of support foam with a convoluted top. The upper ridges in this foam help to improve cooling and also improve the material responsiveness.

Product Evolution

The SweetNight CoolNest Pro Memory Foam Mattress launched in June 2026. It was released as an upgrade over the original SweetNight CoolNest Memory Foam Mattress.

Since it was added to the collection, there have been no major changes made to this mattress.

We have tested the SweetNight CoolNest, the CoolNest Pro (this review), and the CoolNest Ultra (their top-tier model). You can see a table of how these three mattresses compare below.

CoolNest vs. Pro vs. Ultra

Factor	SweetNight CoolNest	SweetNight CoolNest Pro	SweetNight CoolNest Ultra
Read Review	Read Review	This is the review.	Read Review
Overall Score	8.47	8.27	8.50
Price (Queen)	$499	$600	$930
Cooling – Score	8.0	8.0	8.0
Sinkage – Depth	2.12″	2.75″	2.39″
Sinkage – Feel	Moderate	Very Deep	Deep
Motion Transfer – Score	9.2	9.1	8.8
Motion Transfer – Acceleration	6.79 m/s²	7.06 m/s²	7.74 m/s²
Response Time – Score	9.7	9.5	9.7
Response Time – Mostly Recovered	0.2 sec.	0.2 sec.	0.2 sec.
Response Time – Fully Recovered	0.6 sec.	0.9 sec.	0.6 sec.
Bounce – Height	7.26″	7.05″	5.66″
Bounce – Feel	Low	Low	Very Low
Edge Support – Score	8.4	7.8	8.1
Edge Support – Sitting	4.00″	5.00″	4.50″
Edge Support – Lying	Good	Good	Good
Sex – Score	7.6	7.3	6.9
Pressure Relief – Score	8.0	8.0	9.0
Comfort Layer Thickness	5.0″	7.25″	6.25″
Mattress Thickness	12″, 14″, 16″ (we tested the 16″ version which was 15.50″ thick)	12″, 14″, 16″ (we tested the 14″ version which was 13.75″ thick)	12″, 14″, 16″ (we tested the 16″ version which was 15.50″ thick)
Off-Gassing – Score	8.3	6.9	8.1
Off-Gassing – Smell	Strong	Strong	Strong
Off-Gassing – Days	6 days	11 days	7 days

Other Mattresses to Consider

Not sure if the SweetNight CoolNest Pro is the right pick for you? Check out these three other top-rated memory foam mattresses under $800 for alternatives you may want to consider.

Frequently Asked Questions

Still have questions? Check out some of the top FAQs on the SweetNight CoolNest Pro mattress below and get the answers you’re looking for.