Shuteye Whisper Mattress Review

1/5/2023 Update – The Shuteye Whisper mattress has been discontinued and is no longer available for purchase.

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	Excellent
Sinkage	Moderate
Motion Transfer	Low
Response Time	Extremely Fast
Bounce	Extremely High
Edge Support	Excellent
Sex	Excellent
Pressure Relief	Excellent
Off-Gassing	Excellent
Company	Excellent

The Shuteye Whisper has excellent cooling performance. In our tests, I felt no significant level of heat retention around my body.

The hybrid design has plenty of airflow and seems to breathe well, keeping the sleeper cooler.

• 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

With only 3.0” of comfort materials, it’s not ideal for pressure relief (which we’ll discuss further down), but it is advantageous for cooling. Having less foam within the mattress means it’s able to absorb and retain less heat.

The Shuteye Whisper has a pretty typical hybrid design, but one we’ve seen work well for cooling over the years.

If we look at our objective data, we can see that the Whisper has a max temperature of 87.8°. This is 1.7° F cooler than the average max temp based on all of our tests to date.

Heat Dissipation Over Time

The heat dissipation curve was fine, but far from amazing. However, I’m more inclined to look past the limited heat dissipation performance due to the notably cooler starting max temperature.

Since the Shuteye Whisper started at a lower max temp compared to the average it also had less heat to dissipate, hence the below-average heat dissipation performance.

Overall, I’m pleased with the level of cooling performance on the Shuteye mattress.

The Shuteye Whisper mattress has a moderate level of sinkage. In our tests, we measured 2.06” of pressure point sinkage depth. This is slightly below the average pressure point sinkage depth of 2.25”.

The level of sinkage is documented in the image below.

Bear in mind, we tested the firm version. Firm mattresses tend to have less sinkage compared to medium and softer mattresses.

As a result, I expect the luxury firm (aka medium) mattress would have a deeper level of sinkage. At least with respect to the firm version, it has a very restrained type of hugging contour around the body.

The firm version creates more of a floating “on top” of the mattress as opposed to lying “in” the mattress. This type of a feel is pretty typical of many firm mattresses.

Overall, I found that the Whisper mattress has a very traditional feel. Yes, technically it is a hybrid mattress, but it reminds me of a more typical spring mattress.

This is neither good nor bad, it’s more a matter of preference for the feel. You really feel the more classic spring feel with lots of bounce and a very restrained foam comfort layer.

The Shuteye Whisper mattress has a low to moderate level of motion transfer, however, it’s still more than the average.

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

In our tests, we measured 9.08 m/s² of acceleration range. This is 2.10 m/s² more motion than the average motion transfer of 6.98 m/s² (based on all of our tests to date).

If we look at our motion transfer chart, which visualizes our accelerometer data, we can see the highest levels of motion from 0.00 to 0.21 seconds. A moderate level of motion persists until 1.48 seconds, before returning to near zero levels.

While the motion intensity is relatively restrained, the motion duration is quite a bit longer than what we typically see. Mattresses with the lowest motion transfer are able to dissipate energy within 0.3 seconds, while more average performers manage it in 0.7 to 1.0 seconds.

For a mattress to still have any measurable level of motion beyond 1.0 seconds isn’t great. Granted, it’s a very low-intensity motion, but it’s still something.

The Shuteye Whisper has an extremely fast response time. In our tests, we measured a mostly recovered response time of 0.4 seconds and a fully recovered response time of 0.9 seconds.

This is slightly faster than the average for both categories.

The level of responsiveness is documented in the video below.

Based on all of our tests to date, we have measured an average mostly recovered response time of 0.49 seconds and an average fully recovered response time of 0.93 seconds.

Industry-wide, faster-responding mattresses are becoming the norm. A slower responding mattress makes it more difficult to move around on, get in / out of bed, and generally decreases sex performance.

While some portions of the Whisper mattress materials take a bit longer to recover, in general, this is still a fast-responding mattress. I don’t expect the response time will be a significant issue for many sleepers.

The Shuteye Whisper mattress has an extremely high bounce. In our tests, we measured 15.60” of total bounce height.

This is significantly more bounce than the average. Based on all of our tests to date, we have measured an average bounce height of 9.63”.

The Whisper mattress has the 4th most bounce of any mattress we’ve tested to date.

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

The relatively thin 3.0” comfort layer and pocketed coil base work together to create a huge bounce. A thicker foam comfort layer would decrease bounce. There are pros and cons to high bounce.

A higher level of bounce makes it easier to move around on and improves sex, but also increases motion transfer (which we discussed above).

Beyond that, many sleepers may simply dislike the near trampoline type feel of the Shuteye. The level of bounce is far more similar to a more traditional coil or innerspring mattress.

The Shuteye Whisper mattress has excellent edge support for both sitting and lying. I felt well supported even when sitting directly on the edge of the mattress.

In our sitting edge support tests, I measured 4.0” of sitting edge sinkage. This is 0.55” less sinkage than the average of 4.55”.

In general, I like to see 4.0” of sitting edge sinkage or less. As a result, the Whisper mattress is in a good spot. When sitting directly on the edge of the mattress I found it comfortable and the materials didn’t collapse.

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

As a reminder, we tested the firm version of the Whisper mattress. As a result, it most likely has better edge support than the luxury firm, as is the case with most firm mattresses.

Lying edge support was equally as impressive. I felt well supported in all sleeping positions.

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

If we look at our edge support test visuals you can see the mattress does a great job of supporting the entire body even when lying directly on the edge of the mattress. 

To score sex performance we look at a number of different factors that all play a role in quality sex. Factors include bounce, edge support, noise, pressure relief, and cooling.

All factors are not equal in terms of significance, but bounce, edge support, and noise are the 3 most important.

Here’s a look at our complete sex formula which outlines where each factor falls.

We use the following scores, plugged into the formula, to derive a sex score for each mattress.

Sex Factor	Factor Weight	Score
Bounce	60%	10
Edge Support	20%	9.5
Noise	10%	10
Pressure Relief	5%	9.5
Cooling	5%	9.5

For the Shuteye Whisper, these individual factors generated a sex score of 9.9.

This is a fantastic score. This mattress has a super high level of bounce and pretty good edge support.

These two factors alone make up 80% of the sex score, so it’s no surprise that the performance score is as good as it is.

The Shuteye Whisper has excellent pressure relief. During our tests, I did not feel any significant level of pressure point buildup. This is rare for a firm mattress.

Since it’s the firm version it’s definitely far more restrained, but it still has a good level of pressure relief for a firm mattress.

Many firm mattresses are just so hard they really struggle to relieve pressure.

I would expect the luxury firm version of the mattress will have a similar or slightly better pressure relief dynamic.

Overall, I’m happy with the level and type of pressure relief. I don’t expect it will be a major issue for most sleepers.

Out of the box, the Whisper mattress had a moderate smell. The odor lingered around for 2 days before fully dissipating. This is a little faster than average.

If you are very sensitive to off-gassing odors, remember to leave bedding off of your new mattress, turn on fans, or open windows to help fresh air circulate through the room.

The Whisper mattress is manufactured by Shuteye, the same company that developed a smart sleep tracker to help you relax and track your sleep cycles.

Company Factor
Trial Period	120 nights
Warranty	10 years
Shipping	Free
Returns	Free
Country of Origin	USA

The mattress comes with a 120-night trial period, a 10-year warranty, and free shipping or returns.

The Whisper mattress comes in two firmness levels—luxury firm and firm. We tested the firm model which was a 7.5 out of 10, where 10 is the most firm.

While we haven’t tested the luxury firm version, I would suspect it is around a 6 out of 10 on the firmness scale.

The Shuteye Whisper has excellent support. In all of our tests, I felt well supported by the mattress in all sleeping positions. The mattress has a robust and proven material design.

In my view, it should be supportive up to 300 pounds per side. The firm version of the mattress will provide slightly increased support over the luxury firm version (due to the extra pushback). Overall, I don’t have any major complaints to support.

Luxury Firm

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

The luxury firm version would be a solid pick for all sleeper profiles, up to 300 lbs. It has a nice balance between supportive firmness and comfortable softness.

Firm

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

The firm version will provide more pushback, which can be beneficial to heavier sleepers. But this extra pushback may be too much for lightweight sleepers, especially side sleepers.

Design

The design of the Shuteye Whisper mattress includes layers of foam and pocketed coils as well.

Materials

In total, there are five layers on the Shuteye Whisper mattress. From top to bottom, the layers include the following:

• 1.0″ quilted cover
• 1.0″ poly foam
• 1.0″ poly foam
• 8.0″ support coils
• 1.0″ support foam

The Cover

The Whisper mattress has a 1″ quilted euro cover with a 1.5 lb fire-retardant fiber and polymer blend makeup.

It has a tufted finish and dark navy cording around the perimeter of the mattress.

The Comfort Layer

The comfort layer is made up of three separate 1.0″ layers of poly foam. Each layer is CertiPur certified, with a density of 1.5 lb.

The Support Layer

Past the comfort layer, we get into the support layer of the mattress. The main support is an 8.0″ layer of pocketed coils. There are hundreds of individual coils and each coil is separately encased in a thin fabric which limits noise and motion transfer, while also improving pressure relief.

Along the outer edges (long sides only), there are two rows of thicker steel, which also use a lower gauge coil. This improves the edge support and prevents foam breakdown.

The base layer is a 1″ slab of high-density support foam, with an ILD rating of 28.

What is ILD? In the mattress world, ILD stands for Indentation Load Deflection. It is a numerical value that assesses the overall firmness of the foam. An ILD of 10 would be pretty soft, for example, and an ILD of 40 would be quite firm.

Product Evolution

The Shuteye sleep app was first developed in 2021 with the Whisper mattress following shortly after. Being that it’s a newer product, there have been no major changes to the design of the mattress since its launch.

How is the Whisper Mattress Different?

There is nothing significant that separates the Whisper from other high performance hybrid mattresses. It uses poly foam and 8.0″ pocketed coils.

It does come in two firmnesses and the edge-to-edge coils are a nice benefit for reinforced edges.

The Whisper uses a proven design we’ve seen used on other hybrid mattresses. It may not be unique, but it is effective.

Other Mattresses to Consider

Not sure if the Shuteye Whisper mattress is the right mattress for you? Consider three top-rated hybrid malternatives listed below for other options.

Frequently Asked Questions

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