Chime 12″ Hybrid 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	Chime 12″ Hybrid	Average
Overall Score	8.55	8.54
Price (Queen)	$349	$1,560 (Hybrid only)
Cooling – Score	9.0	8.6
Sinkage – Depth	2.45″	2.27″
Sinkage – Feel	Deep	Moderate
Motion Transfer – Score	7.6	8.2
Motion Transfer – Acceleration	10.43 m/s²	8.80 m/s²
Response Time – Score	8.4	8.7
Response Time – Mostly Recovered	0.4 sec.	0.4 sec.
Response Time – Fully Recovered	1.1 sec.	1.0 sec.
Bounce – Height	11.38″	8.58″
Bounce – Feel	High	Moderate
Edge Support – Score	8.6	8.8
Edge Support – Sitting	3.75″	3.82″
Edge Support – Lying	Good	Good
Sex – Score	9.4	8.2
Pressure Relief – Score	8.0	8.6
Comfort Layer Thickness	4.00″	4.39″
Mattress Thickness	12.00″	12.36″
Off-Gassing – Score	8.1	7.9
Off-Gassing – Smell	Strong	Strong
Off-Gassing – Days	7 days	8 days
Company – Score	9.6	9.0
Trial	180 nights	243 nights
Warranty	10 years	40% have lifetime warranties, average of other 60% of mattresses is 13 years

How is Chime 12″ Hybrid Different?

The Chime 12″ Hybrid is a 12.00″ hybrid mattress with an overall performance level that is very near average, with a price that is significantly less than average. Compared to the average hybrid mattress, the Chime 12″ Hybrid costs 78% less than average, a savings of over $1,200.

Advantages

Aside from the ultra-low price, other advantages of the Chime Hybrid include better cooling performance, slightly faster off-gassing than average, and a higher company score (9.6 out of 10).

Neutral Factors

This mattress has deep sinkage and high levels of bounce. Both sinkage and bounce are considered neutral factors since different sleepers may have different preferences in this area.

Disadvantages

Disadvantages of the Chime Hybrid include higher levels of motion transfer, slightly slower material response time, and slightly worse edge support than average as well.

This mattress offers 4.0″ of comfort material and a 12.0″ total thickness, which is close to average, but the pressure relief score is still below average.

The Chime 12″ Hybrid has excellent cooling. During our tests, I did not experience any significant level of heat retention around my body.

This mattress has a simple but effective design to help facilitate cooling. First, the mattress uses all poly foam comfort layers, as opposed to memory foam. These foams all seem to breathe well and avoid excess heat retention. In addition, we have the hybrid design itself, which brings more airflow into the mattress.

• 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

Lastly, the mattress uses a gel lumbar pad. That gel pad both helps to improve support, while also aiding with cooling.

In our objective temperature tests, we measured a max surface level temperature of 90.0° F. This is 0.3° cooler than the average of 90.3° F, based on all of our tests to date.

After getting off the mattress, the temperature declined by 6.3 degrees from minutes 0 to 1, which is 1.5 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 excellent.

The Chime 12″ Hybrid has deep sinkage. During our tests, we measured a pressure point sinkage depth of 2.45″. This is 0.19″ more sinkage than the average sinkage depth of 2.26″, based on all of our tests to date. The mattress creates a balanced body-contouring hug.

The level of sinkage is documented in the image below.

The Chime has a thinner-than-average (and relatively low-quality) foam comfort layer. As a result, you can definitely feel more of the coil unit below, which gives the mattress something of a “cheap” feel. To be fair, this is indeed a cheap mattress.

At just $349 for a Queen, it’s among the least expensive hybrids I’ve ever tested. I do think it’s fair to say the feel of the mattress leaves much to be desired, and yet, if you just need something reasonably good while also being as inexpensive as possible, the Chime Hybrid is a good choice.

The Chime 12″ Hybrid has a moderate level of motion transfer. During our tests, we measured a total acceleration range of 10.43 m/s². This is 18% more motion transfer than the average of 8.81 m/s².

The higher motion transfer is a product of a thinner-than-average comfort layer, lower-density foams, a tall 8.0” coil unit, and a bounce height that is significantly higher than average. We measured 11.38” of bounce (average is 8.59”), which means we have a ton of extra energy that the mattress has to manage.

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 0.25 seconds. Motion declines thereafter briefly, before we see a notable secondary energy spike from 0.6 to 0.7 seconds.

By 1.02 seconds, we’ve returned to near-zero energy levels, 0.10 seconds longer than the average motion duration of 0.92 seconds. When we look at the complete picture of motion data, it’s just not great.

Both motion intensity and motion duration were worse than average. As a result, we see the overall motion transfer score earning a considerably below-average score.

The Chime 12″ Hybrid is a mixed bag for material responsiveness, with a fast mostly recovered response time and a moderate fully recovered response time.

In our mostly recovered test, we measured a recovery speed of 0.4 seconds, which is 0.02 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 1.1 seconds, which is 0.07 seconds slower than the average of 1.03 seconds. These material recovery speeds are certainly not slow, but they aren’t super fast either.

The full recovery takes a bit longer, primarily due to the topmost comfort foam. That foam just takes a moment to return to its original shape after being compressed.

The level of responsiveness is documented in the video below.

The fact that it’s also a convoluted layer (i.e., cut with air channels) also seems to be slowing it down slightly. All that said, these material recovery speeds are about average and, as such, shouldn’t be a major problem for most sleepers.

The Chime 12″ Hybrid has a high level of bounce. During our tests, we measured a total bounce height of 11.38″. This is 2.79″ more bounce than the average of 8.59″, based on all of our tests to date.

The higher-than-average bounce is a product of the thinner-than-average comfort layer, lower-density foams, and tall 8.0” coil unit. With a thinner, less dense foam layer between sleepers and the coils, we set the stage for the coils to generate more energy unimpeded and deliver more bounce.

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

The higher level of bounce makes this mattress easy to move around on and better for sex. However, that higher bounce is also the primary reason why motion transfer is considerably worse than average. As such, there are pros and cons to consider.

The Chime 12″ Hybrid has excellent sitting edge support and good lying edge support.

In our sitting edge support test, we measured a sitting sinkage compression of 3.75″. This is 0.06″ less sitting sinkage than the average of 3.81″, 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, this mattress does not include any type of reinforced edge support coils or edge support foam. This lack of a reinforced edge is part of the reason why we see lying edge support earning a good, but not a great rating.

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

In addition, there is a slight downward curvature of the pillow top cover at the edge. That downward-curving edge, in addition to a lack of reinforced edge materials, creates the right environment for less-than-amazing lying edge support.

The Chime 12″ Hybrid has excellent sex performance. First up, let’s start with the perfect 10/10 score, which was noise. The mattress creates minimal noise, so if nothing else, it’s a quiet mattress.

In addition, we see bounce earning an excellent score due to 11.38” of total bounce height. This is considerably more bounce than average. All of that extra bounce makes sex easier, less tiring, and more fun. Edge support also earned an excellent score.

In our edge tests, we measured a sitting sinkage compression of 3.75”, which is slightly better than average. The more robust sitting edge helps extend the usable surface area for amorous activities.

Sex Factor	Factor Weight	Score	Rating
Bounce	65%	9.6	Very High
Edge Support	20%	9.1	Excellent
Noise	5%	10	Minimal
Pressure Relief	5%	8.0	Good
Cooling	5%	9.0	Excellent

Lastly, we see cooling earning an excellent score and pressure relief earning a good score.

Overall, this is a really strong performance for sex. The mattress has no notable weak performance areas and, as a result, earns an excellent score that’s notably better than average.

The Chime 12″ Hybrid has a good level of pressure relief. During our tests, I felt a slight level of pressure point buildup. To be fair, it was nothing extreme, but it’s also very clear that this mattress does not rise to the “excellent” or “outstanding” level of pressure relief performance.

The mattress is equipped with 4.0″ of comfort material, which is 0.38″ less comfort material than the average comfort layer thickness of 4.38″, based on all of our tests to date. Beyond having a thinner-than-average comfort layer, the quality of these foam layers is also mediocre at best.

The lower quality and thinner foam layers make sense given the $349 price. In order to hit that price, the manufacturer needed to make sacrifices to the materials, and we see that with both the lower-spec coil unit and lower-spec foams.

Overall, the feel of this mattress is just a bit cheap. We have less comfort material, lower-quality comfort materials, and lower-density foams. In our objective pressure mapping tests, we see that weight is fairly evenly distributed, which does help with comfort.

The only notable pressure spots were along the hips and shoulders while lying on my side. While overall pressure relief leaves much to be desired, given the price point, it’s actually better than what I expected. If you only have $350 to spend, the Chime Hybrid is a reasonably good option.

Pressure Relief (PSI)	Average	Maximum
Side Sleepers	0.26	0.96

Pressure Relief (PSI)	Average	Maximum
Back Sleepers	0.16	0.51

Pressure Relief (PSI)	Average	Maximum
Stomach Sleepers	0.16	0.73

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 Chime 12″ Hybrid had a strong smell upon the initial unboxing. The mattress smelled for 7 days. This is 0.6 days shorter than the average smell duration of 7.6 days.

Chime mattresses come with a 180-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%	10	180 nights
Warranty	20%	8.0	10 years
Shipping	10%	10	$0
Country of Origin	0%		USA

Comparing 122+ brands tested to date, the average trial period is 243 nights, which is 41 nights longer than the Chime trial period. The average warranty is 13 years, which is 3 years more than Chime as well. One note: this does exclude the 43% of mattresses that offer lifetime warranties.

The Chime 12″ Hybrid mattress is available in a single firmness option—medium-firm. This is a firmness rating of 6 out of 10, where 10 is the most firm. A medium-firm feel is widely suitable for the vast majority of sleepers.

Support on the Chime 12″ Hybrid is good. During our tests, I felt well supported in all positions. That said, as with pressure relief, it was clear the support performance did not rise to the “excellent” or “outstanding” level.

Support Factor	Data
Comfort Layer	4.00″
Support Layer	8.00″
Firmness	Medium-Firm
Body Contour	Balanced
Zoned Support	No
Reinforced Edge	Yes

The mattress is equipped with an 8.0″ support layer. This is 0.02″ thicker than the average support layer thickness of 7.98″, based on all of our tests to date. Mattresses that create the best support do so by providing a neutral spinal alignment and also creating ample pressure relief.

The Chime Hybrid achieves both of those requirements reasonably well, though it’s also fair to say that there is room for improvement. The mattress is available in a single firmness that we rated at a medium-firm feel. That’s a 6 out of 10 on our firmness scale and it’s a good fit for all sleeping positions and 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.	Yes	Yes	Yes
150-250 lbs.	Yes	Yes	Yes
250-300 lbs.	Yes	Yes	Yes

In all NapLab tests, we make it a point to cut the mattress open to examine the material quality. In doing so, we measured foam density levels between 1.50 PCF (pounds per cubic foot) and 1.58 PCF. There is just no sugarcoating it, these are low density levels and are absolutely not what we want to see.

Lower density foams typically perform worse, sag deeper, and don’t last as long. Ideally, we want to see all poly foams at 2.5 PCF or higher. Suffice it to say, density levels around 1.5 PCF aren’t great, and I fear it will create performance problems over time. That said, this is still a very inexpensive mattress.

Is it likely going to last a long time? Probably not. But given the $349 price point, perhaps that’s okay for some sleepers. 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 Chime 12″ Hybrid is good.

The Chime 12″ Hybrid is a 12.00″ hybrid mattress with a single firmness option: Medium-Firm. This mattress is one of the most budget-friendly hybrids we’ve tested to date. If you’re low on cash but want a hybrid design, the Chime Hybrid hits a lot of the right marks.

Design Factor	Data
Type	Hybrid
Thickness	12.00″
Cover Type	Pillow Top
Weight	78 lbs.
Has Handles	No
Fiberglass-Free	Yes
Ships in a Box	Yes

Despite its low price tag, this mattress is still 12 inches thick and has a pillow top cover.

The Chime 12″ Hybrid is 12.00″ thick and contains a combination of poly foam and coils. From top to bottom, here is a full list of the materials used in this mattress:

Layer Type	Thickness	Manufacturer’s Specs	Tested Specs
Pillow Top	2.00″	Not Available	1.58 PCF
Poly Foam	2.00″	Not Available	1.50 PCF
Pocketed Coils	8.00″	Not Available	15.00 Gauge (Interior), 13.5 Gauge (Edge)

The Chime 12″ Hybrid has a 2.00″ pillow top cover and quilted design. This gives the mattress a more traditional, luxury, euro-top look, which is less common at this price point.

The comfort layer is 4.00″ thick, including the pillow top cover. Beneath the cover is a 2.00″ convoluted poly foam. With the rest of the comfort material quilted into the pillow top cover, this layer looks pretty unimpressive.

Beneath the poly foam is the support layer an 8.00″ thick pocketed coil base. A queen-size version of this mattress contains only 680 coils, nearly half the amount that we have seen from higher-quality hybrids that we’ve tested.

This is certainly the result of shortcuts made to hit the Chime’s targeted low price point. If price is the biggest driver, coil count may not make much difference, but it does contribute to the mattresses lower overall score, pressure relief, and support dynamic.

Product Evolution

The Chime Hybrid was originally introduced in October 2017, under the parent umbrella of Ashley Sleep.

The website, Sleep On Chime, launched in the summer of 2026 as a direct-to-consumer initiative from Ashley. From our research, there appear to have been minimal changes between the Chime 12″ Hybrid produced under Ashley Sleep and this version produced under Sleep On Chime.

Other Mattresses to Consider

Not sure if the Chime 12″ Hybrid is the right pick for you? Check out these three other top-rated hybrid mattresses for budget-friendly alternatives you may want to consider.

Frequently Asked Questions

Still have questions? Check out some of the top FAQs on the Chime 12″ Hybrid mattress below and get the answers you’re looking for.