Naturepedic EOS Mattress 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. Testing categories include:

Test	Rating
Cooling	Exceptional
Sinkage	Very Deep
Motion Transfer	Very High
Response Time	Extremely Fast
Bounce	Moderate
Edge Support	Excellent
Sex	Excellent
Pressure Relief	Exceptional
Off-Gassing	Excellent
Company	Excellent

Naturepedic EOS Versions

There are 3 main versions of the Naturepedic EOS mattress:

1. Classic
2. Pillow top
3. Trilux (all-latex comfort layer)

We tested the pillow top version in a split queen configuration—plush on one side and medium on the other side. Our tests and data below are primarily based on the plush side of the mattress.

How is the Naturepedic EOS Different?

The Naturepedic EOS mattress has a higher performance than average, but also a significantly higher price tag as well—2.6 times the price of an average latex hybrid.

Advantages

This mattress has better-than-average cooling performance as well as faster response time. Edge support is also better than average, with 3.75″ of sitting sinkage—10% better performance than average.

Neutral Factors

Sinkage is 24% deeper than average and the EOS also has slightly less bounce than average (9% less than average).

This mattress is also 15″ thick, 3.1″ thicker than average. While a thick mattress doesn’t always guarantee better performance, it is certainly a good sign.

Disadvantages

Motion transfer levels are 63% higher than average, which is arguably the biggest disadvantage of the EOS. While the price may be a barrier for some sleepers, others may argue that the expansive customization options give the EOS a unique place in the market.

Factor	Naturepedic EOS	Average
Overall	9.67	9.51
Price	$4,799	$1,833 (Latex Hybrid only)
Cooling	10	9.4
Max Sinkage	2.71″	2.18″
Total Motion Transfer	13.55 m/s²	8.31 m/s²
Response Time	0.2 sec.	0.4 sec.
Total Bounce	8.87″	9.65″
Edge Support – Sitting Sinkage	3.75″	4.16″
Mattress Thickness	14.0″	11.9″
Sex Overall	9.7	9.6
Comfort Material	6.0″	4.2″
Off-Gassing – Smell	Strong	Strong
Off-Gassing – Days	5 days	5 days
Trial	100 nights	162 nights
Warranty	25 years	27% have lifetime warranties, average of other 73% of mattresses is 14 years

The Naturepedic EOS has exceptionally good cooling performance. In our tests, I did not feel any significant level of heat retention around my body.

From top to bottom, the mattress is built with materials that help reduce heat retention and increase breathability.

The coils create airflow, the latex naturally resists heat retention (especially relative to poly foam), the aeration holes within the latex create better airflow, and the split latex layers (4 separate pieces) help to create air gaps.

• 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

All of these design factors combine to create exceptional cooling. In our objective testing, we measured a max surface level temperature of 92.3°. After getting off the mattress the temperature declined by 4.9°, which is 0.36° cooler than average.

From minutes 0 to 5 the temperature declined by 9.1 degrees, which is 2.16 degrees cooler than average.

Heat Dissipation Over Time

When we consider the complete picture of objective data, subjective experience, and material analysis, I am confident most sleepers will find the cooling performance to be exceptionally good.

The Naturepedic EOS has a very deep level of sinkage. In our tests, we measured a total sinkage depth of 2.71”. This is 0.53” deeper than the average of 2.18”.

Bear in mind, our tests were conducted on the plush version of the EOS. The EOS is available in 5 different firmnesses. Naturally, the softer versions will have more sinkage, while the firmer versions have less.

The EOS creates a fairly typical latex hybrid feel. It has a generalized body contouring hug.

The level of sinkage is documented in the image below.

Unlike memory and many poly foams, which create a dramatic and exacting hug around the body, the EOS creates a more generalized depression where your body lies. This helps to prevent the foam layers from overly wrapping around your body, which can cause some sleepers to feel stuck. 

The Naturepedic EOS has a very high level of motion transfer. In our tests, we measured a total acceleration range of 13.55 m/s². This is 63.1% (5.24 m/s²) more motion transfer than the average of 8.31 m/s².

When we consider the material design it’s easy to see why we have such high motion. Latex as a material naturally has more bounce and faster response. Likewise, the coil unit has high bounce and fast response.

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

While the split configuration is likely to help to reduce motion at some level, it’s just not enough to overcome the challenges inherent to latex and latex hybrid mattresses.

Bear in mind, this isn’t an issue with EOS specifically, but rather with most latex and latex hybrid mattresses.

The simple fact is, if you desire a latex or latex hybrid then you should expect the motion to be on the higher side.

In our motion transfer chart, which visualizes our accelerometer data, we see the highest motion from 0 to 0.21 seconds. We do see a rapid decline thereafter, but it’s not until 0.70 seconds that we return to near-zero levels of motion.

Mattresses with the lowest motion are able to disperse all energy within 0.3 seconds and will have a motion spike far less than the average. All that to say, the Naturepedic EOS has a very high level of motion transfer.

The Naturepedic EOS has an extremely fast material response time. In our tests, we measured a mostly recovered response time of 0.2 seconds and a fully recovered response time of 0.8 seconds.

At 0.2 seconds to mostly recover the response speed is effectively instant. Given the latex hybrid design, we weren’t surprised by the rapid response.

While most of the materials recover instantly, there are some materials (cotton fill, wool batting, and PLA layer) that take slightly longer to fully recover at 0.8 seconds.

The level of responsiveness is documented in the video below.

Notably, this is just a touch faster than the average full material recovery speed of 0.84 seconds. Overall, we found responsiveness on the Naturepedic EOS to be extremely fast.

The Naturepedic has a moderate level of bounce. In our tests, we measured a total bounce height of 8.87”. This is 0.78” less bounce than the average of 9.65”.

Typically, latex and latex hybrid mattresses will have a higher level of bounce. However, we don’t see that here. Most likely the bounce is being slightly restrained by the thick layer of quilted materials.

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

These materials, in combination with the softer feel of the model we tested, absorb much of the bounce. Nevertheless, at 8.87” the EOS still has enough bounce to improve ease of movement and sex performance.

The Naturepedic has excellent edge support for both sitting and lying. In our sitting edge support tests, we measured a sitting sinkage compression of 3.75”. This is 0.41” less sinkage compression than the average of 4.16”.

In general, I like to see 4.0” of sitting sinkage or less and the EOS hit that mark. Lying edge support was equally as impressive.

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

During our tests, I felt well supported in all sleeping positions even when lying directly on the edge of the mattress. The extra-thick total profile and reinforced edge support coils make a significant difference in terms of total edge support.

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

Even with the softer feel, the mattress was fully supported at the edge. Overall, I’m pleased with the edge performance that we experienced and measured.

The best mattresses for sex have high bounce, good edge support, quiet materials, and good pressure relief and cooling.

These 5 factors make up the NapLab sex performance score.

Sex Factor	Factor Weight	Score	Rating
Bounce	60%	9.7	Moderate
Edge Support	20%	9.6	Excellent
Noise	10%	10	Minimal
Pressure Relief	5%	10	Exceptional
Cooling	5%	10	Exceptional

For the Naturepedic EOS, these individual factors generated a sex score of 9.7.

This mattress has moderate levels of bounce—a total bounce height of 8.87” which is 0.78” less bounce than the average of 9.65”.

Bouce is critically important for good sex so the EOS bounce levels are good, but not great.

That said, this is another area where bounce was likely worse due to the softer materials in the plush mattress that we tested. The medium, cushion firm, and firm mattresses would all likely have higher bounce and better sex performance as a result.

Edge support is also excellent with a score of 9.6 and sitting sinkage of 3.75″, 10% better support than the average level we see.

Pressure relief on the Naturepedic EOS was exceptionally good. During our tests, I felt no significant level of pressure point build-up anywhere on my body.

The mattress was incredibly comfortable to lie on in all sleeping positions. Looking at the material composition it’s easy to see why. We have 15” of total mattress profile with 6.0” of organic natural latex comfort layers.

The comfort layer is broken up into two layers that are each 3.0” thick. On average, we see a 4.2” comfort layer (based on all of the mattresses we’ve tested to date).

At 6.0” thick the EOS is significantly thicker than average. In addition, the latex itself feels incredibly high quality. It’s all-natural, organic, and wrapped into a protective cloth layer.

Having the option to order a different firmness on each side of a Queen, King, or Cal King mattress is also incredibly helpful, as it allows each sleeper to find the firmness that’s best suited to their needs.

Overall, I am exceedingly pleased with the level of pressure relief. I expect most sleepers will find it more than satisfactory. 

Off-gassing on the Naturepedic EOS mattress was strong right out of the box and took 5 days to fully off-gas.

The average off-gassing period is 4.6 days so the EOS hybrid is just slightly beyond this range.

It’s not a typical off-gassing poly foam smell, but make no mistake, even an organic and all-natural mattress can have a strong smell.

The wool, latex, and organic cotton all have a strong smell. It’s not nearly as offensive as memory or poly foams will be, but it’s still something.

The company score takes a look at factors that may influence your experience with the mattress.

Factors include length of the trial period, warranty, shipping / return costs, and country of origin.

Company Factor	Factor Weight	Score	Data
Trial Period	25%	9.0	100 nights
Warranty	25%	10	25 years
Shipping	25%	10	$0
Returns	25%	10	$0
Country of Origin	0%		USA

For Naturepedic, these individual terms and conditions generated a company score of 9.8.

The EOS mattress comes with a 100-night trial and a 25-year warranty. A trial period of that length is 38% shorter than the average trial length of 162 nights.

In addition, the 25-year warranty is longer than many other mattresses. Comparing all mattresses tested to date, 27% have lifetime warranties, and the average of the other 73% of mattresses is 14 years.

Beyond trial and warranty, this mattress also offers free shipping and returns.

The Naturepedic EOS mattress is available in a range of firmnesses. You can even opt for a split firmness mattress, which has one firmness on one side and an alternate firmness on the other side.

We tested a Split Queen with a plush softness on one side and a medium version on the other side.

The firmness of the mattress varies depending on how the materials are layered. The table below details how to obtain the different firmness levels.

Feel	Firmness	Top Layer	Middle Layer	Bottom Layer
Ultra-Plush	3	Soft Latex	Soft Latex	Plush Coils
Plush	4	Soft Latex	Medium Latex	Plush Coils
Medium	5	Soft Latex	Medium Latex	Firm Coils
Cushion Firm	6	Soft Latex	Firm Latex	Firm Coils
Firm	7	Medium latex	Firm latex	Firm Coils

The Naturepedic EOS has exceptionally good support. During our tests, I felt fully supported in all sleeping positions. In terms of materials, it checks all of the boxes I look for. We have a thick and high-quality pocketed coil unit that’s 8.0″ thick.

Said unit also contains reinforced edge support coils, helping to ensure good support extends all the way to the end of the mattress.

Furthermore, the EOS contains an incredibly thick 6.0” comfort layer.

This layer creates ample pressure relief, ensuring that sleepers are both supported, but also comfortable.

Last, and arguably the most important factor, the EOS is available in split firmness configurations in the Queen, King, and Cal King sizes.

This means you can get a different firmness on each side of the mattress.

As a result, sleepers with different firmness needs don’t need to compromise with their partner. Instead, each sleeper gets the precise firmness and support that’s best suited to their body and sleeping position.

The EOS is available in 5 different firmnesses, creating an incredibly wide range of options. Overall, I’m pleased with the level of support and found this mattress to be suitable for an all-encompassing range of sleepers (as shown in the table below).

Sleeper Weight	Stomach Sleepers	Side Sleepers	Back Sleepers
Under 150 lbs.	Yes	Yes	Yes
150-250 lbs.	Yes	Yes	Yes
250-300 lbs.	Yes	Yes	Yes

Design

The Naturepedic EOS is one of the most customizable hybrids we’ve tested to date. It comes in three different styles with additional options available within each style (ex: latex-free, all-latex, vegan, and varying firmnesses).

The three different styles of the Naturepedic EOS mattress include:

1. Classic
2. Pillowtop
3. Trilux

We tested the Pillowtop mattress, as shown below, so all noted materials will be representative of that selection.

Assembly Time

As an added mention, the Naturepedic EOS mattress comes unassembled. Each layer is individually packaged and you need to assemble the mattress upon unboxing. The assembly is a lengthy process and took me a little over an hour to fully setup.

The foams are a little unwieldy to put together and some of the materials are quite abrasive, mostly the brass zipper. I sustained some minor cuts and abrasions after the whole thing was said and done.

While this may not be a huge issue for all sleepers, it may be to others, depending on personal strength and how much effort you want to put into setup.

Materials

There are three major layers used on the EOS mattress. The top two layers are for comfort while the bottom layer is specifically for support. From top to bottom, the layers include:

• 3.0” organic latex
• 3.0” organic latex
• 8.0” pocketed coils

The Cover

The cover of the Naturepedic EOS is a soft, quilted organic cotton. It has a natural look and feel with a contrasting black and gold zipper that wraps around the perimeter of the mattress.

The pillowtop version of the mattress has a zippered compartment for the pillowtop, in addition to a separate zipped compartment for the support coils below.

The Comfort Layer

In testing the Pillowtop EOS, there were two layers of organic, hole-punched, natural latex. Each layer was 3.0″ thick and encased in a thin fabric for protection. You can swap the layers to change the feel of the mattress or order a new layer entirely.

The EOS mattress comes with a 100-night trial period and a comfort guarantee. If you try a layer and find that it’s too soft or too firm for your liking, simply contact Naturepedic and exchange the layer for something different.

This is one of the design features that makes the EOS so attractive to sleepers with varying or uncertain needs.

The Support Layer

The support layer is contained with a secondary zippered compartment below the pillowtop. This layer has an 8″ thick layer of pocketed coils.

Depending on the overall firmness of the mattress, these coils may be plush or firm.

Product Evolution

The Naturepedic EOS mattress has been around for the larger part of 10 years, undergoing changes throughout the years.

While exact design changes over the years are unclear, one change we can note is the Naturepedic trail period changing from 90 nights (back in 2020) to 100 nights.

Other Mattresses to Consider

Not sure if the Naturepedic EOS hybrid is the right pick for you? Check out these three other top-rated organic hybrid options you may want to consider.

Frequently Asked Questions

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