Sleep Science Copper Memory Foam 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 value of the mattress. We then take the results of that test and compare to every mattress we’ve tested to date.

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

Factor	Sleep Science Copper Memory Foam	Average
Overall Score	7.32	8.62
Price (Queen)	$649	$1,102 (Memory Foam only)
Cooling – Score	6.0	8.7
Sinkage – Depth	2.06″	2.15″
Sinkage – Feel	Moderate	Moderate
Motion Transfer – Score	6.4	8.1
Motion Transfer – Acceleration	12.98 m/s²	8.76 m/s²
Response Time – Score	9.6	8.9
Response Time – Mostly Recovered	0.2 sec.	0.4 sec.
Response Time – Fully Recovered	0.8 sec.	0.9 sec.
Bounce – Height	7.18″	9.71″
Bounce – Feel	Low	Moderate
Edge Support – Score	7.4	8.6
Edge Support – Sitting	4.75″	4.05″
Edge Support – Lying	Fair	Good
Sex – Score	7.3	8.5
Pressure Relief – Score	7.0	8.8
Comfort Layer Thickness	3.0″	4.1″
Mattress Thickness	14″	12.0″
Off-Gassing – Score	8.9	8.4
Off-Gassing – Smell	Strong	Strong
Off-Gassing – Days	4 days	6 days
Company – Score	8.8	8.7
Trial	365 nights	168 nights
Warranty	10 years	24% have lifetime warranties, average of other 76% of mattresses is 13 years

How is Sleep Science Different?

The Sleep Science Copper memory foam mattress has below-average performance, but also a price that falls below the average as well—41% less than the average cost for a memory foam mattress.

Advantages

Beyond the low price, other advantages for the Sleep Science mattress include fast material response time, a thicker profile (14″ thick compared to the 12″ mattress average), and a longer trial period. The Sleep Science gives you a full year, 365 nights, to decide if it’s the right pick for you.

Neutral Factors

This mattress has moderate sinkage and low levels of bounce. Depending on what type of feel you’re looking for, these can be advantages or disadvantages.

Disadvantages

Strong disadvantages include worse cooling performance, high levels of motion transfer, and worse edge support. The pressure relief also struggles a bit, largely due to the thinner comfort layer (27% thinner than average).

This will be a bigger disadvantage for heavier sleepers who will feel the effects more strongly.

The Sleep Science Copper Memory Foam mattress has a mediocre level of cooling performance. During our tests, I felt a moderate to significant level of heat retention around my body.

The mattress has an all-foam design with no significant cooling features. Notably, it does include a layer of foam that’s cut with air channels. This is certainly helping to improve airflow. However, it’s not enough to have a significant impact on cooling performance.

• 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

In our objective cooling tests, we measured a max surface level temperature of 91.6° F, which is 2.0° warmer than the average of 89.6°. After getting off the mattress the temperature declined by 2.7° from minutes 0 to 1, which is 1.9° warmer than average.

From minutes 0 to 5 that decline was 6.7°, which is 0.6° warmer than average. Ultimately, these foams simply appear to retain a significant level of heat within them.

When we consider the complete picture of objective cooling data, our subjective experience, and an analysis of the materials, I’m confident that most sleepers will find the cooling performance to be disappointing. 

Heat Dissipation Over Time

The Sleep Science mattress has a moderate sinkage level. During our tests, we measured a pressure point sinkage depth of 2.06”. This is 0.09” less sinkage than the average of 2.15”.

The level of sinkage is documented in the image below.

The mattress creates an in-between type of a feel hovering between a balanced body contouring hug and a dramatic one. The top 1.0” copper memory foam does create a more significant body contouring hug.

However, the 2.0” poly foam layer below it balances out the overall feel. As a result, I never felt overly hugged or entrapped by the mattress. The mattress is reasonably easy to move around on. Though not quite as easy as a hybrid, more responsive poly foams, latex, or coil mattress.

The Sleep Science Copper mattress has a high level of motion transfer. In our tests, we measured a total acceleration range of 12.98 m/s². This 49% more motion than the average of 8.70 m/s².

Typically, all foam memory foam mattresses have less motion transfer. However, that’s not what we measured. In my view, the layer of foam cut with air channels is likely destabilizing the mattress, which is increasing motion.

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

This fact, in combination with the relatively low-quality foams, are both having a negative impact on motion. In our motion transfer chart, which visualizes our accelerometer data, we can see the high motion from 0 to 0.23 seconds.

Motion drops thereafter, but there is another sizable secondary spike from 0.38 to 0.60 seconds. By 0.82 seconds we return to near-zero levels of energy. Overall, I’m just not impressed by the level of motion. We have a sizable primary spike that is well above average, a notable secondary energy spike, and a mattress that takes nearly a full second to disperse all energy. 

The Sleep Science mattress has a very fast level of material response. In our mostly recovered response time test, the mattress was able to recover back to shape in 0.2 seconds, which is 51% faster than the average of 0.41 seconds.

In our fully recovered response time test, the mattress was able to recover back to shape in 0.8 seconds, which is 10% faster than the average of 0.89 seconds.

The level of responsiveness is documented in the video below.

These responsiveness speeds are more than fast enough to help sleepers never feel stuck on the mattress and keep the mattress easy to move around on. 

The Sleep Science memory foam mattress has a low level of bounce. In our tests, we measured a total bounce height of 7.18”. This is 2.51” less bounce than the average of 9.69”.

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

Bounce at this level is what we expect from an all-foam memory foam mattress. The low bounce is significantly negatively impacting sex performance.

In addition, low bounce also typically makes it harder to move around on the mattress. However, since the Sleep Science has a fast material response and moderate sinkage it remains easy to move on, despite the lower bounce. 

The Sleep Science Copper Memory Foam mattress has a fair level of edge support for both sitting and lying. In our sitting edge support, we measured a sitting sinkage compression of 4.75”. This is 0.70” more sitting sinkage than the average of 4.05”.

Ideally, I want to see 4.0” of sitting sinkage or less. Suffice to say, the Sleep Science is far from that mark.

While sitting directly on the edge it isn’t quite a complete collapse of the materials, but it is still a significant level of sinkage and material compression. It’s a similar story with lying edge support.

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

While lying directly on the edge of the mattress the support is fair, but also far from great. Notably, the mattress lacks any type of perimeter edge support foam. Overall, edge support just leaves much to be desired.

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

The Sleep Science has a fair level of sex performance. All foam mattresses, especially memory foam mattresses, often struggle with sex performance and that’s exactly what we see here.

The mattress has a low level of bounce, disappointing edge support, and limited cooling and pressure relief. The noise is low, which is certainly a bright spot.

However, the total sex performance dynamic just isn’t great. The lack of bounce and all-foam design mean sex is more strenuous and difficult. Overall, sex performance leaves much to be desired.

Sex Factor	Factor Weight	Score	Rating
Bounce	65%	7.0	Moderate
Edge Support	20%	7.8	Fair
Noise	5%	10	Minimal
Pressure Relief	5%	7.0	Fair
Cooling	5%	6.0	Mediocre

The Sleep Science mattress has a fair level of pressure relief performance. During our tests, I felt a slight to moderate level of building pressure points on my body.

The mattress is equipped with a 3.0” comfort foam layer. This is 1.1” less comfort foam than the average of 4.1”, based on all of our tests to date. In addition, while the topmost 1.0” comfort foam looks and feels to be high quality, the 2.0” poly foam comfort layer feels quite basic.

It doesn’t seem all that different from the quite hard support foam layers on the bottom of the mattress. The foam quality and limited comfort layer result in the body sinking through the comfort layer and into the harder support foam layers.

It’s this action that creates much of the pressure points on the body. Given the price point, it’s hard to complain too much. Even so, for those who desire a mattress with better pressure relief the Sleep Science can leave something to be desired.

Pressure Map – Side Sleepers

Pressure Relief (PSI)	Average	Minimum	Maximum
Side Sleepers	0.27	0.02	1.45

Pressure Map – Back Sleepers

Pressure Relief (PSI)	Average	Minimum	Maximum
Back Sleepers	0.19	0.02	2.01

Pressure Map – Stomach Sleepers

Pressure Relief (PSI)	Average	Minimum	Maximum
Stomach Sleepers	0.17	0.02	1.31

Off-gassing on the Sleep Science Copper mattress is strong and takes 4 days to fully off-gas.

Compared to the average off-gassing duration, this is faster than average.

Sleep Science offers a 365-night trial period and a 10-year warranty. Shipping and returns are both free. These terms and conditions are applicable when the mattress is purchased at Costco.

Company Factor	Factor Weight	Score	Data
Trial Period	15%	10	365 nights
Warranty	10%	8.0	10 years
Shipping	5%	10	$0
Returns	20%	10	$0
Trust	50%	8.0	Good
Country of Origin	0%		Mexico

Compared to the average, this trial is longer than average (average is 168 nights). The warranty is also longer than average. To date, the average warranty period is 14 years (76% of mattress) and with 24% of mattresses offering a lifetime warranty.

The Sleep Science Copper memory foam mattress has a slightly firm feel, rated 7 out of 10, where 10 is the most first.

This firmness is a great pick for back or stomach sleepers. Most side sleepers will find this feel to have too much pushback.

The Sleep Science memory foam mattress has good support, but it’s far from excellent. During our tests, I felt well-supported in all sleeping positions.

The mattress does a good job of creating sufficient support. However, it’s the missing pressure relief that complicates support.

While I do feel well supported I was only able to lie in the same position for a few minutes before the lack of pressure relief necessitated that I changed positions.

The mattress has a slightly firm feel, minimal to moderate sinkage, and limited pressure relief. In my view, these factors make support worse for most sleepers, as it’s harder to achieve a comfortable neutral spinal alignment.

To find the Sleep Science mattress supportive you’ll definitely need to like that slightly firm feel and be okay with a less plush and less pressure-relieving feel. For some back and stomach sleepers, this dynamic can be acceptable. However, many side sleepers in particular will find it just isn’t a great experience.

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

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

Design

The Sleep Science Copper is a 14″ memory foam mattress with a slightly firm feel. It is designed for sleepers looking for a high-profile memory foam mattress on a tight budget.

Materials

This mattress has an all-foam configuration and is made up of four foam layers. The top two are designated for comfort and the bottom two are for support.

From top to bottom, these layers include:

• 1.0” memory foam
• 2.0” poly foam
• 5.5” support foam
• 5.5” support foam

The Cover

The cover of the Sleep Science mattress is a machine-washable, removable cover. It is hypoallergenic and dust-mite resistant as well.

A contrasting orange zipper separates the top soft cover from the reinforced gray fabric sides.

The Comfort Layer

The comfort layer includes two layers of foam. On top, there is a 1.0″ copper-infused memory foam followed by a 2.0″ poly foam.

The Support Layer

The support system is a two-layer foam system. The first support foam is a 5.5″ channel-cut foam. The channels remove a strip of foam lengthwise and tends to improve breathability and material response time.

At the base of the mattress is another 5.5″ support foam, but this layer does not contain any air channels.

Product Evolution

The Sleep Science Copper mattress launched in 2022. Since its release, no notable design changes have been made to this mattress.

Other Mattresses to Consider

Not sure if the Sleep Science Copper Memory Foam mattress is the right pick for you? Check out these three other top-rated memory foam mattresses for high-performing alternatives you may want to consider.

Frequently Asked Questions

Still have questions? Check out some of the top FAQs on the Sleep Science Copper Memory Foam mattress below and get the answers you’re looking for.