Siena 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. 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	Siena	Average
Overall Score	8.54	8.64
Price (Queen)	$399	$1,095 (Foam only)
Cooling – Score	8.0	8.8
Sinkage – Depth	2.34″	2.16″
Sinkage – Feel	Deep	Moderate
Motion Transfer – Score	10	8.2
Motion Transfer – Acceleration	1.79 m/s²	8.64 m/s²
Response Time – Score	7.6	8.9
Response Time – Mostly Recovered	0.5 sec.	0.4 sec.
Response Time – Fully Recovered	1.5 sec.	0.9 sec.
Bounce – Height	6.49″	9.69″
Bounce – Feel	Low	Moderate
Edge Support – Score	8.1	8.6
Edge Support – Sitting	4.50″	4.07″
Edge Support – Lying	Good	Good
Sex – Score	7.2	8.5
Pressure Relief – Score	9.0	8.8
Comfort Layer Thickness	5.0″	4.2″
Mattress Thickness	10″	12.0″
Off-Gassing – Score	9.4	8.4
Off-Gassing – Smell	Strong	Strong
Off-Gassing – Days	2 days	6 days
Company – Score	8.8	8.7
Trial	180 nights	165 nights
Warranty	10 years	25% have lifetime warranties, average of other 75% of mattresses is 14 years

How is Siena Different?

The Siena mattress has slightly higher performance than average as well as a price that is significantly lower than average—66% less expensive than the average foam mattress tested to date.

Advantages

Arguably the biggest advantage of the Siena is the rock-bottom price. At $399 for a queen mattress, Sienna is one of the lowest-priced mattresses we’ve tested to date. Coupled with above-average performance, that makes Siena a fantastic value.

Neutral Factors

Siena offers 7% deeper sinkage than the average mattress and 33% less bounce. These factors are considered “neutral” and don’t really determine if a mattress is good or bad. Different sleepers will have different preferences in these areas so there is a wide range of acceptable levels.

Disadvantages

The Siena has slightly poorer cooling performance compared to the average mattress as well as slightly more sinkage (0.36″) when seated directly on the edge.

The mattress is also only 10″ thick which could lead to some pressure relief issues for heavier sleepers. But again, given the low price, this likely won’t be a significant factor for all sleepers.

Cooling performance on the Siena mattress is good. During our tests, I felt a slight to moderate level of heat retention, mostly isolated to my midsection, butt, and lower back.

I wouldn’t say it rose to the level of “hot”, but there was a notable warmness.

Looking at the material design, it makes sense. It’s an all-foam mattress and uses memory foam in the top layer.

• 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

Moreover, it’s also a super budget-friendly mattress, so many of the foam formulations, materials, and fabrics that could help reduce heat are missing in order to keep the cost down.

Notably, the Siena does include a middle foam layer with air channels cut through the foam. That definitely helps to improve the cooling. Looking at our heat dissipation curve it matched my subjective experience. It was good, just not great.

Heat Dissipation Over Time

We saw a pretty gradual decline of heat over the 5-minute measurement period. All things considered, this isn’t something I’m too worried about.

If you’re a hot sleeper, you may want to opt for a different mattress. That said, considering the price point, it’s hard to complain too much about this.

The Siena has a moderate to deep level of sinkage. In our tests, we measured 2.34” of sinkage depth. Technically, this places it within the “deep” sinkage category label, but only by 0.04”.

The level of sinkage is documented in the image below.

On average, based on all of our tests to date, we see 2.18” of sinkage.

The Siena has a medium-firm feel, however, the convoluted layer of foam in the core definitely allows for deeper sinkage. For many side sleepers, this slightly deeper level of sinkage is a positive.

The deeper sinkage will help allow side sleeper bodies to get better contouring and support. However, heavier stomach and back sleepers may find it sinks a little too deep.

Motion transfer on the Siena mattress was extremely low. In fact, it is the 3rd lowest motion transfer of any mattress we’ve tested to date. In our tests, we measured just 1.79 m/s² of acceleration range.

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

On average, based on all of our mattress tests to date, we see an acceleration range of 8.33 m/s².

The combination of a memory foam top layer with a layer of convoluted polyfoam in the core pays huge dividends when it comes to motion transfer.

There is virtually no bounce and rebound, helping to keep motion isolation on the mattress. As a result, the Siena is a great mattress for couples.

Looking at our motion transfer chart (which visualizes the accelerometer data), we see that motion peaks around 0.2 seconds before dropping dramatically. There is a minor level of motion that persists up until 0.5 seconds before returning to near zero levels.

The Siena has a fast response time. In our tests, we measured 0.5 seconds for the materials to mostly recover, and 1.5 seconds for a full material recovery.

On average, based on all of our mattress tests to date, we see mattresses mostly recovered within 0.4 seconds and fully recovered within 0.8 seconds.

As a result, Siena is better than the average when it comes to mostly recovering. However, the full material recovery is around 50% slower than the average.

The level of responsiveness is documented in the video below.

The memory foam top layer does a nice job of creating a deeper hug and contour.

While it does mostly bounce back to its original shape quickly, there is still some portion of the memory foam that’s quite slow. For most sleepers, it’s not so slow that I think it would be a dramatic issue.

However, if you are worried at all about feeling “stuck” by slower-responding foams, you may want to consider a different mattress.

Bounce is low on the Siena mattress. In our tests, we measured a total bounce height of 6.49”.

This is notably less bounce than the average, based on all of our tests to date, which is 9.62”.

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

While a lower level of bounce does help to decrease motion transfer, it also gives it a more “dead” feel, makes it harder to move around, and decreases performance for sex.

The Siena mattress has good sitting edge support. In our tests, we measured 4.5” of compression when sitting directly on the edge of the mattress.

This is slightly better than the average edge compression of 4.66”. Even when sitting directly on the edge the Siena did a nice job of remaining supportive. While sitting edge support was great, the edge support while lying left something to be desired.

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

When lying directly on the edge of the mattress I just don’t feel as well supported. In my view, the core layer of convoluted foam is most likely to blame.

This layer does help to create better cooling, lower motion transfer, and deeper contour, but at the same time is worse when it comes to edge support.

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

When lying on my back at the edge I noticed the worse support more when lying on my side. With that said, as long as you are not lying directly on the edge it should be a non-issue.

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	65%	6.5	Low
Edge Support	20%	8.1	Good
Noise	5%	10	Minimal
Pressure Relief	5%	9.0	Excellent
Cooling	5%	8.0	Good

Let’s talk through some of these factors. Arguably, the most important factor for good sex is good bounce (which is also why bounce is worth 60% of the total score).

Bounce on the Siena is good, but not great. Being memory foam, you’re just not going to get the fast response time or lift you’d get on a latex foam or coil-based mattress.

Edge support was also a little lacking. While edges may not be an important factor for all sleepers, I would have liked to have seen a little better performance in this area.

The pressure relief on the Siena mattress was excellent. Throughout our tests, I felt plenty of pressure relief in all sleeping positions.

With 5” of comfort foam, the Siena has more than enough physical material to create sufficient pressure relief for most sleepers. The Siena has a medium-firm feel and a more dramatic contouring hug around the body. 

Upon the initial unboxing of the Siena, there was a strong odor. The strong smell lingered for 2 days before fully dissipating.

This is notably faster than the average off-gassing period of 2.79 days, based on all of our mattress tests to date.

Notably, the Siena mattresses included a couple of deodorizer packs within the sealed packaging. No doubt that these packs helped to reduce the smell.

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	15%	10	180 nights
Warranty	10%	8.0	10 years
Shipping	5%	10	$0
Returns	20%	10	$0
Trust	50%	8.0	Good
Country of Origin	0%		USA

Siena has a good company score with a lot of appealing factors.

First of all, Siena offers a 180-night trial period and a 10-year warranty. Shipping and returns are both free as well.

The Siena mattress is a 6 out of 10 on the firmness scale, where 10 is the most firm.

This firmness falls into the camp of a “medium firm” mattress, generally appealing to a wide range of sleepers being soft enough to avoid pressure points, but also firm enough to provide support and spinal alignment.

Overall, I found support on the Siena mattress to be excellent. I felt well-supported in all sleeping positions. My only major concern with support is for heavier-weight sleepers.

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

Medium-firm 10” mattresses often just don’t have enough support for heavier-weight sleepers, especially over 250 pounds.

This is especially true when you have convoluted foam layers, as the Siena does.

While that convoluted layer in the middle improves cooling, it also reduces support. For lighter and moderate-weight sleepers, that’s not a big issue.

However, for heavier-weight sleepers, you’re more likely to experience a lack of support. In my view, the Siena will provide great support up to 250 pounds, but not much beyond that.

Design

The Siena mattress is a simple foam mattress that is designed to appeal to budget-conscious sleepers.

It has a 10″ high profile, a medium-firm firmness (6 out of 10), and includes three different kinds of foam.

This mattress is marketed as a balanced option that could be suitable for a very wide range of sleeper needs, regardless of sleeping position.

Despite this approach, there are a few issues. As I mentioned above, this mattress really isn’t supportive enough for heavy sleepers.

Their website markets the Siena as having a 5-layer construction, but honestly, that’s a bit of a stretch. This mattress has three layers that are held within a single cover.

Siena counts the top layer of the cover and the bottom layer of the cover as two separate layers. In any case, I am hesitant to call this a 5-layer mattress.

Materials

Here is a detailed inside look at the Siena mattress.

The Siena layers include the following materials:

• 2.5″ memory foam
• 2.5″ poly foam
• 5.0″ support foam

The Cover

The cover of the Siena mattress is a polyester blend, enhanced with polyethylene.

It is light gray with thin white stripes on the top and solid gray on the sides. There is no fancy tufting along the top, cording at the edges, or handles on the sides either. Presumably, this is an effort to help keep costs down.

The Comfort Layer

The top layer of comfort foam is a gel-infused memory foam. It is 2.5″ thick and provides the initial layer of comfort when you first engage with the mattress.

Below the memory foam is a mid-level layer of 2″ thick convoluted poly foam. The convoluted cuts some of the foam material out of the middle of the mattress, which increases response time, cooling, and breathability.

The Support Layer

The support layer at the base of the mattress is a simple 5″ thick layer of denser support foam. This foam is designed to support the layers above.

Product Evolution

The Siena mattress just launched in 2022, as a sister mattress from the parent brand, Nectar. This mattress was developed as an incredibly budget-friendly mattress, one of the only instances where you can find a queen mattress for under $500.

Other Mattresses to Consider

If you’re looking for other budget-friendly picks to consider alongside the Siena, check out the top three options below.

Frequently Asked Questions

Still have questions? Check out a couple of the top FAQs on the Siena mattress below and get the answers you’re looking for.