Lull mattress review

by | mattress reviews, mattresses

We’ve been conducting tests and gathering data for this Lull mattress review for well over a year now. We expected to see this review live after a few months, but as Lull grew more popular, new data kept pouring in.

So, to make the ratings more reliable, we postponed publishing the review until we have a bigger data sample, which means more reliable ratings.

The bottom line is – the ratings of the Lull mattress are fruit of over 5,500 work-hours spent testing, reviewing data for our statistical model. Let’s get right to it…

lull mattress queen size top

Lull mattress testing

Source: Lull

What’s different about the Lull?

Lull mattress is yet another mattress-in-a-box brand, but with a twist. While most similar mattresses aspire to find that sweet spot between comfort and support that will work for most people, Lull took it one step further.

It’s not just about the comfort vs. support, Lull made a special effort to achieve better breathability of the foam and a “cooling effect.”

In the review of the Lull mattress; you’ll see below, we’ll take it apart and put it back together until we have a full picture about it. What are its advantages and downsides? Who is it for and it’s not for?

What this means for you

If you are in the market for a new mattress, this review should make it perfectly clear if Lull is right for you…based on your body type, sleep habits and budget.

lull label close up

Lull mattress – review of the construction

Layer 1 – 1.5 inches of cooling gel foam

First, you have the top layer that’s meant to increase breathability and provide better cooling properties compared to similar mattresses. This layer is 1.5 inches thick and made of memory foam. The foam is gel-infused to be “cooler” and distribute the weight of the sleeper in a way that relieves pressure points at the hips and shoulders.

In on our experience, a finish layer like this does make a substantial difference when it comes to pressure relief for most people of average built, except for outliers like bodybuilders or heavy people. properties of this layer are similar to that of a visco elastic foam.

frontal view of layers
lull layers illustration

Why is this important?

The difference here comes down to the distance between the body axis and the furthermost points (like hips and shoulders).

So, unless you belong to one of the two groups of people mentioned above, the Lull is likely to provide a good balance between support and comfort. That’s probably the reason behind the fact that Lull mattress has a user satisfaction rating of 95%.

Layer 2 – support / transition

One more layer of foam with the same thickness as the cooling foam but somewhat denser. It’s meant to be a transition between the cooling layer and the core (bottom layer).

Layer 3 – core

7 inches of extra dense foam of the core are there as the main supportive element. The foam used is strong, much denser than either of the two layers we mentioned above and works with them to balance out the lower density of the cooling and the transitional layer.

The three layers together “work” together to offer proper “sinkage” for the joints and align the spine. Based on what we’ve seen, Lull has done a very good job balancing the 3 layers.

  • Comfort rating 95%
  • Support rating 93%
  • Balance between comfort and support 95%

Bottom line

The three layers together “work” together to offer proper “sinkage” for the joints and align the spine. Based on what we’ve seen, Lull has done a very good job balancing the 3 layers.

 

On a firmness scale of 1 to 100, we’d say that the Lull mattress is around 65-75.

Lull mattress – review of foam quality

unboxing of the lull mattress

If you’ve done your homework researching mattresses, you probably know that judging the quality of the foam is tricky.

Things got especially complicated with the growing trend of shady outsourcing practices. We’re not saying that outsourcing is a bad thing per se or that you can judge the quality of the foam based on where it comes from.

We’re saying not to take any claims about “high-quality foam” at face value…simply because anyone can make them.

What to look for instead?

Look for things that are backed up and proven, like:

  • Warranty
  • Testing (independant)
  • 3-rd party certification

Unless a mattress ticks all the boxes above, any claims about the quality of the foam are moot, whether they’re positive or negative.

So, let us analyze and review the Lull mattress from that precise “angle”.

Warranty and Trial

The trial

Let’s separate two things here – the trial period of hundred nights and the 10 years of warranty.

The trial is just meant for the potential buyer to protect themselves from ending up with a mattress they don’t like. In the modern, online-mattress-shopping market, a company wouldn’t get very far without offering a trial period that lasts long enough for you, as the potential owner, to be sure whether their product is right for you.

During this period, you can sleep-test the Lull mattress and simply return it if you don’t like it.

It’s a big plus but not something that separates the Lull from similar brands.

The warranty

We’ve said it before and we’ll say it again, the foam quality comes down to the warranty. There’s simply no way for the company to offer a 5 or 10-year testing-backed (this is an important one and we’ll get back to it in a minute) warranty while using sub-par foam for their mattresses. The math simply doesn’t add up.

That’s why we’re stressing the 10-year warranty of the Lull. There’s no foam expert that can tell you more about the foam quality that the warranty terms.

Independent testing – beyond the warranty

One of the advice we always give to people buying a mattress online is to go with a brand of mattresses that are backed up by independent testing. Lull is one of those brands.

What does this mean exactly?

It means that the mattress is tested in by a 3-rd party lab in conditions designed to mimic the use within the warranty period.

Why is this important?

Lull is a big player and a stable company. We see them remaining one for decades to come, so the following scenario doesn’t refer to the company but other sub-par mattress sellers.

But, imagine this scenario – you get a mattress based on the warranty terms and you see an issue with it halfway through the warranty period. What if the company is not there anymore?

In this scenario, you would have bought a mattress based on numbers on a paper.

  • Warranty terms rating 96%

That’s why the testing of the Lull mattresses makes all the difference

Lull machine-tests their mattresses and reviews the results based on 200,000 cycles of compression and movement.

Why 200,000?

Because this is approximate to 10 years of regular use. In other words, after testing a mattress like this, you end up with a product that feels like a 10-year old mattress. The mattress is then laser-measured to see what kind of change the “abuse” caused.

There’s no better way to pinpoint any structural issues and make sure that the warranty is not just a number on a piece of paper.

We respect them for the practice.

Safety of the Lull

Safety is still a big factor when choosing memory foam. That’s why we avoid even reviewing mattresses that are not CertiPUR-US® Certified.

Lull is not only certified for safety from any fumes or potentially harming agents by the CertiPUR-US label, but it’s also a certified member of the Sustainable Furnishing Council (SFC) and Mattress Recycling Council (MRC).

There are mattresses out there with some of these certificates, but you rarely see a brand certified with all the 3 safety and environmental labels.

safety certification of lull mattress
  • Safety rating 97%

The cover

If you think that a cover of the mattress bears little importance, you didn’t stumble upon a bad cover.

The quality of the cover is especially important for the Lull because of their selling points is the cooling property of the top foam layer. The breathability of the end product largely depends on the quality of the cover (as defined on the Lull website).

To put it simply – you can use whatever foam type you like, but if the materials of the cover are not top-notch, the mattress will still trap heat.

Why we like the Lull cover

With the combo of polyester, polypropylene and rayon, Lull seems to have found the sweet spot with the cover. We didn’t notice any breathability, durability or longevity issues that would be a red light or deal breakers.

The part we especially like is the easy maintenance and how well the combo of the materials responds to different types of cleaning (like machine washing or dry cleaning).

Lastly, the patterned surface with side panels and the combo of white and gray does look stylish and worthy of a high-end product like Lull.

The balance between heat dissipation and shape retention

To get to the ratings of the cover, we look at the temperature footprint of the mattress with and without the cover. With mattresses like Lull, the lower the difference, the better the cover. It’s all about allowing the cooling layer to breathe and do its job of heat dissipation.

This means striking the right balance between shape retention, the thickness of the cover and its seamlessness. We also look at issues like pilling or shape change and we saw none of that with the Lull…to be honest, we didn’t expect to see it either (having in mind the reputation of the company).

On top of it all, the cover is fire resistant. Nice work with this one, Lull.

  • Cover quality rating 96%

Bottom line

Pushback vs. Hug balance rating of the Lull is one of the best we’ve seen in all-foam mattresses at 96/100 with the “scales” slightly tipped in favor of “Hug.”

That puts it in the Top 3 % of mattresses we ever tested.

“Pushback” (bounce) vs. “Hug” (contouring)

We’ve seen this quality category “break” the ratings of some otherwise outstanding mattresses.

First things first – let’s explain what this rating is.

It’s pretty self-explanatory but let’s take a moment to precisely define it.

We defined “pushback” as an aspect of support. Mattresses with solid pushback will not allow you to sink in and will make it easy to move without feeling trapped. It’s more than just about the firmness – it’s about how well the thickness and the density of the foam are combined.

It’s critical for all-foam mattresses like Lull

You could say that “hug” is the opposite of the pushback. It’s a way to describe how well the mattress contours to the body of sleepers with different body types.

The balance

Our rating algorithm does not include hug and pushback as separate quality categories, but the balance between the two…which is, for most people, all that really matters.

Better edge sturdiness than a vast majority of all-foam mattresses

Again, the importance of this rating is higher in all-foam mattresses because if the balance is off here, you’ll end up with a mattress that feels like you’re sleeping on a bouncy inflatable bed or you’ll find yourself sinking too much, feeling “trapped” and difficult to move.

 
Layer
 
Foam type
Thickness
& density
 
ILD

‣ Top,
cooling

 

‣ Gel infused foam

 

‣ 1.5 "
‣ n/a

 

‣ n/a

 

‣ Middle,
transitional

 

‣ Poly-foam
‣ medium firmness
‣ medium give

 

‣ 1.5 "
‣ n/a

 

‣ n/a

 

‣ Bottom,
core support

 

‣ high-density,
polyurethane

 

‣ 7 "
‣ n/a

 

‣ n/a

 

Pushback vs. Hug balance rating of the Lull is one of the best we’ve seen in all-foam mattresses at 96/100 with the “scales” slightly tipped in the favor of “Hug.”

That puts it in the Top 3 % of mattresses we ever tested.

Motion transfer & edge sturdiness

As we said above, Lull is not a firm mattress but one that’s finely balanced between firmness, comfort, pushback and hug.

That also means that it has a somewhat higher motion transfer than firmer mattresses and it’s a bit less supportive around the edges (much like most all-foam mattresses are).

However, the ratings in the edge support and motion transfer category are on the higher end among the all-foam mattresses.

Our conclusion about motion transfer of the Lull mattress

We’ve said it many times and we’ll say it again, we feel that “motion transfer” is an overrated quality aspect. That’s why we have an adjustment coefficient for the category, and this rating has less impact on the Overall rating then quality aspects we feel are more important.

We’ve all witnessed the frenzy of ads of demonstrating the quality of the mattress by jumping on one side or throwing a bowling bowl while keeping, say, a glass of vine on the other unspilled.

These tests look dazzling, but what do they prove?

We’ve introduced the adjustment coefficient to tweak our rating formula because, at one point, we saw mattresses that are obviously inferior getting a higher score because they had low motion transfer. We see it more as an indicator of other quality aspects than a rating that’s meaningful on its own.

With all that said, the rating we reached in this Lull mattress review is 92 / 100 for motion transfer.

Somewhat sturdier edges than similar mattresses

We don’t expect the edges of all-foam mattresses like Lull to be close to innespring or even hybrids. It’s physics 101. No matter how you combine the layers or how thick you make them, the foam cannot hold an edge like a steel coil.

The ratings of the Lull in this category (86/100) put it in the top 5 % of mattresses (of its type) we ever tested or reviewed. It’s due to the very dense and unyielding core.

  • Motion transfer 92%
  • Edge sturdiness 86%

Off-gassing of the foam and initial odor

This category is somewhat subjective because it comes down to the perception of the user. With that said, we do have extensive experience with reviewing similar mattresses.

During the period of testing and putting together this Lull mattress review and analysis, we have seen no red lights or deal-breakers.

There was a slight odor on-arrival (the kind you’d expect from any new mattress of this type), but it was fleeting. The odor did not resemble any of the smells we’ve seen over the decades that would indicate a presence of harmful chemicals. It was more of a new mattress smell than anything else.

This comes as no surprise since we know how rigorous CentriPur is with their certification. Our rating in this category is 96/100. You can read more about the connection between odor and safety here.

Note: This rating is provided for reference and it’s included in the Overall safety rating above. This means that it contributes to the overall rating indirectly, not on its own.

  • Off-gassing safety 96%

Heat dispersion test of the Lull

When we mentioned factors like motion isolation not getting equal “treatment” as some of the more important ones, we had quality aspects like temperature regulation in mind.

With the cooling being one of the selling points, the results we’ve seen here are nothing to write home about and we deem them as average.

Our notes based on Thermal imaging are that the average time for the Lull to return to room temperature after an average person laying on it for 25 minutes in a room of 70 Degrees F is about 15 minutes. As we said, these results are nothing to write home about but are not a deal-breaker either (for most people).

Higher heat retention is to be expected from mattresses like Lull compared to innerspring. This means that Lull might not be the choice for you if you are an outlier and an especially hot sleeper or have hot flashes. For an average person, we don’t see it as a significant issue, but the ratings do reflect the results – 84/100.

  • Heat dissipation 85%

Sizes & surface compatibility review of the Lull mattress

Without spring getting in the way, Lull makes for a “malleable” mattress that easily adjusts to any surface.

Ratings in this category are less about the versatility of being used with different fixed bed bases (like slated bars or flat boards) and more about the flexibility and ease of use with adjustable bed bases.

Lull outperformed 94% of similar mattresses here, “molding” to the base and moving with it with ease. We rate it at 97/100 here – there are very few beds we know of that adjust better, and they cost 2 or 3 times as much as the Lull.

  • Base compatibility 98%

Value for money

Lull is not a cheap mattress, but this category rating is not about price but about the balance between value it offers, how it compares to similar mattresses (both online and at retail stores).

The value rating of the Lull (94/100) puts in the top 7%, meaning that if you do find it to be a right fit for you in the warranty period and decide to keep it, you will have saved a nice amount.

  • Value for money 96%

Specs of the Lull mattress

Sizes of the Lull
Dimensions (")
Weight
(lbs)
Twin
38 x 75 x 10
40.3
Twin XL
38 x 80 x 10
44.2
Full
54 x 80 x 10
57.6
Queen
60 x 80 x 10
69
King
76 x 80 x 10
87.5
California King
72 x 84 x 10
86

Protection & cooling

In spite of the 10-years warranty, you can always use some sort of protective mattress topper or pad to increase the lifespan of your mattress.

When we say “lifespan,” we’re not necessarily referring to the absolute lifespan but prolonging the period during which the Lull has that familiar “new mattress” feel. Adding a topper can also adjust the firmness to your liking (if you like the Lull but find it too firm or soft).

For some recommendations, you can see our full guide on mattress toppers here.

Cooling it down

Lull comes with its own cooling layer but, as we reported above, the breathability can’t really be compared to different mattress types (latex, innerspring, hybrids).

To add a touch of cooling, you can pair the lull with a cooling mattress pad.

Lull mattress complaints

Most of the Lull mattress complaints we’ve seen when analyzing the review of existing owners are from people who found it to be either too soft or too warm. The high user satisfaction ratings on the Lull are mostly (in our opinion) a result of the fact that Lull works for most people and the reviews are coming from people who understood what kind of mattress it is.

The second factor here is the customer service (especially the trial) and Lull policy about posting each review (even the complaints). They go as far as to promise a full refund to people who bough their mattress, wrote reviews or a complaint that wasn’t posted on their website.

FAQs

FAQs

In the section below, we’ll address some of the frequently asked questions about the Lull mattress concisely.

How long does it take to air out?

We’d say that the smell goes away in about a week. After a day of noticeable odor, it significantly decreases within 2 days. It’s fair to say that it completely airs out within a week.

Is there a chance to receive a used mattress

This is a common question, and with the 100-night trial in mind, it’s reasonable to ask it.

The answer is, “No.” Lull either recycles or donates the returned mattresses.

The return process

Since the Lull mattress arrives vacuum-sealed in a small box (compared to the size of the set-up mattress), there’s no way to get it back into the box (which also means that you don’t have to keep the box and can return the mattress without it).

If you decide to return it

The good new is that if you purchase it from Lull directly of from Amazon, there is no hassle, packing or shipping you’ll need to do. You just set it aside, and somebody will pick the mattress up as is.

The difference here is that if get it directly from the company, you can contact them to arrange the return while mattresses ordered through Amazon are returned by raising a request from your Amazon account.

Where is Lull mattress made?

Lull is manufactured in the U.S. and China. There is no difference in quality standards between manufacturing locations.

Where is it shipped from

Lull is shipped from one of their US locations.

Does the price listed include a frame?

No, the price you’ll see listed on their website or Amazon is for the mattress only.

Shipping and box size

If you order from the company directly, your mattress will be with you within 1-4 work days.

Since there are no springs, the Lull mattress is vacuum-sealed with all the air from the foam “squeezed out. That makes the box small enough to easily fit the narrowest of doorways.

The height of the box will depend on your chosen size while the width and depth are approximately 2 x 2 ft.

For details about the weight, see the specs table.

Updates and summary

We typically update our guides on a quarterly basis, which is also the case with this one.

That doesn’t mean that we update the ratings of each airbed – our statistical model is based on gathering data and if we don’t have enough of new information for a specific bed, this update might happen once every 6 months or yearly.

What this means for this guide is the ratings of the more popular beds, like the Classic raised or EZ, are updated every six months, while the less popular models “wait” until we share enough new info for an update to make sense.

If you have any dilemmas, questions or any thoughts at all about the information we presented, please do share them in the comment section at the end of this page.