The Lull is an all-foam, mattress-in-a-box from Lull. It combines a memory foam comfort layer with firmer poly foams to create a balance of pressure relief and support. The Lull is the first and only mattress from the Lull brand.
With all the foam mattresses out there, I’m putting the Lull to the test to see if it’s the right one for you. Keep reading for my full review that tests everything from the mattress’ construction to feel.
Or, skip down to my review summary for an overview.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. Lull features a 10-inch, all-foam design with a memory foam comfort layer. I think the Lull does a great job at preventing sleepers from overheating, which some memory foam mattresses can be prone to.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. Lull features a 10-inch, all-foam design with a memory foam comfort layer. I think the Lull does a great job at preventing sleepers from overheating, which some memory foam mattresses can be prone to.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress.Lull Mattress
Material
Foam
Trial Period
365 nights
Shipping Method
Free shipping
Firmness
Medium-soft: 6/10
Warranty
Lifetime warranty
Price Range
$$$$$
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Financing Options
Lull Mattress
Material
Foam
Warranty
Lifetime warranty
Firmness
Medium-soft: 6/10
Shipping Method
Free shipping
Trial Period
365 nights
Price Range
$$$$$
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Financing Options
Lull Mattress
Material
Foam
Firmness
Medium-soft: 6/10
Trial Period
365 nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Financing Options
Where the Lull Mattress is Featured
Here at Sleepopolis, we use a series of hands-on tests to determine which mattress roundups a bed belongs on and who it might be good for. Here are some of our 2024 mattress roundups that include the Lull mattress:
Lull Mattress Overview
The Lull is a solid option for sleepers looking for a firmer memory foam mattress. The Lull is a surprisingly responsive all-foam bed with decent edge support and cooling capabilities, making it a good bed for combination sleepers and couples who use the entire surface area of the mattress.
This mattress is a bed-in-a-box, so it ships compressed in a package to your doorstep. Because of this, you might notice an off-gassing period upon first opening it. This process typically ends in one to three days after you unbox it. To speed up the off-gassing period, I recommend leaving your new mattress in a well-ventilated room and avoiding adding sheets for about 24 hours.
Lull Mattress Video Review
Want to see the Lull in action before reading the full review? Check out my review video for an in-depth look at its materials and the tests we performed on it. I gave the Lull mattress a 4.2 out of 5 overall.
Lull Mattress Sleepopolis Score
What Is the Lull Mattress Made Of?
The Lull is an all-foam bed that uses a combination of memory and poly foams to create a balanced feel. But these aren’t your everyday foams. The memory foam is infused with gel to help dissipate heat, and all of the foams are CertiPUR-US Certified, meaning they’re free of a variety of harmful chemicals.
Intrigued? Let’s take a gander at what’s inside the Lull!
Cover – First up, you’ll find a cover made from a polyester blend that has a durable, cozy feel.
Comfort Layer – Beneath the cover, there’s a comfort layer made from 1.5” of gel-infused memory foam. In classic memory foam fashion, this layer has a slow response to pressure, allowing sleepers to sink in for some body-contouring and pressure relief. Meanwhile, the gel infusion helps draw heat away from the sleeper.
Transition Layer – Next up is another 1.5” foam layer, but this time it’s made of poly foam. It’s a little firmer and has a quicker response to pressure than the memory foam above it. This layer helps balance out the softness of the memory foam, creating a mix of support and comfort that could appeal to back and side sleepers.
Base Layer – Finally, you’ll find 7” of high-density poly foam. This material is firmer than all the layers above, and it helps provide support and structure for the mattress.
Lull Mattress Firmness
Before I start talking about the firmness and feel of the Lull, it’s important to note that firmness is subjective. A mattress will feel firmer or softer to different sleepers depending on their body weight, shape, and preferred sleeping position.
To help me understand how firm the Lull mattress feels, I invited a colleague to try it out and give it a firmness rating between 1 and 10. For reference, the industry standard is 6.5 out of 10, or medium-firm.
This mattress felt a bit firm for an all-foam bed, meaning I did not experience any body contouring or cushioning typical of memory foam mattresses. When I tested the Lull, I felt my lower body and hips sink slightly compared to the rest of my body. My spine remained aligned, so I could see this being a good fit for back sleepers who prefer memory foam mattresses.
Similarly, my colleague did not feel any body contouring or extra cushioning. He noted that he felt lifted and on top of the bed rather than “in” the mattress.
Overall, I gave this mattress a 6.5 out of 10 on the mattress firmness scale, placing it right at the industry standard of medium-firm. I could see the Lull mattress being a solid choice for sleepers who prefer an all-foam mattress that relieves pressure around the lower lumbar area.
Sleeping Position and Body Weight
We recognize that people come in all shapes and sizes, and people of every size deserve a mattress that works for their body type. We use the weight categories light, average, and heavy to more easily categorize sleepers based on how mattresses will perform for their body type, as most mattresses are designed for the group we call “average” (130 to 250 pounds).
As a general takeaway, lighter sleepers don’t require as much support as average weight sleepers, and mattresses will tend to feel firmer to them. On the other hand, heavy sleepers tend to need more support than average weight sleepers and tend to sink into the mattress more.
As far as sleeping positions go, side sleepers tend to need a softer mattress while stomach sleepers usually need a firmer, more supportive one. Back sleepers are usually somewhere in the middle.
Is the Lull a Good Mattress for Light Sleepers (Under 130 lb)?
- Light Back Sleepers – Light back sleepers should like the Lull. The firmer poly foam layers will do a great job keeping their spines in a nice even alignment in this position.
- Light Side Sleepers – These sleepers might think the Lull is too firm, especially those with sensitive joints. Light side sleepers will not get the body contouring and cushioning they need from the Lull.
- Light Stomach Sleepers – The Lull would not work well for light stomach sleepers. It doesn’t offer enough support to keep their hips lifted up in line with their shoulders.
Is the Lull a Good Mattress for Average Weight Sleepers (130 – 250 lb)?
- Average Weight Back Sleepers – The Lull should feel wonderful for these sleepers! Its foam support system will help keep their spines in an even alignment in this position.
- Average Weight Side Sleepers – Average weight side sleepers should like the Lull, especially if they alternate between their side and another position at night.
- Average Weight Stomach Sleepers – These sleepers will likely find their hips sinking too far into the mattress. I’d recommend average weight stomach sleepers search for a firmer option.
Is the Lull a Good Mattress for Heavy Sleepers (over 250 lb)?
- Heavy Back Sleepers – This mattress won’t provide enough support for heavy sleepers. I’d recommend these sleepers check out our Best Mattress for Heavy People review for better options.
- Heavy Side Sleepers – See above.
- Heavy Stomach Sleepers – See above.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. Lull features a 10-inch, all-foam design with a memory foam comfort layer. I think the Lull does a great job at preventing sleepers from overheating, which some memory foam mattresses can be prone to.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. Lull features a 10-inch, all-foam design with a memory foam comfort layer. I think the Lull does a great job at preventing sleepers from overheating, which some memory foam mattresses can be prone to.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress.Lull Mattress
Material
Foam
Trial Period
365 nights
Shipping Method
Free shipping
Firmness
Medium-soft: 6/10
Warranty
Lifetime warranty
Price Range
$$$$$
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Financing Options
Lull Mattress
Material
Foam
Warranty
Lifetime warranty
Firmness
Medium-soft: 6/10
Shipping Method
Free shipping
Trial Period
365 nights
Price Range
$$$$$
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Financing Options
Lull Mattress
Material
Foam
Firmness
Medium-soft: 6/10
Trial Period
365 nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Financing Options
Lull Mattress Performance
Motion Transfer
Motion transfer measures how much movement you will likely detect from one side of the bed to the other. If you sleep with a pet or someone who tends to roll around throughout the night, you want a bed that effectively traps movement. Prioritizing low motion transfer, or what we also call good motion isolation, can help you sleep soundly, no matter who’s tossing and turning next to you.
Human Test
The first test is pretty straightforward: I lie down on the mattress with a colleague, switch between sleeping positions, and see how much of each other’s movement we feel.
I didn’t feel my colleague get in and out of bed during this test. However, I could feel him switch between different sleeping positions. Based on this, I might recommend a less responsive mattress to couples or individuals who sleep with a restless pet.
Water Test
Next, we place a full glass of water on the mattress and see how much the liquid moves around with us. If the water has zero to little movement, it’s a safe bet that the mattress has low motion transfer, which is what you want to see.
The Lull did a decent job here. I didn’t notice much movement in the glass as my colleague got in and out of bed. However, I did see a fair amount of movement while he switched between different sleeping positions and rolled around.
Seismometer Test
Last but not least is our seismometer test. This test involves dropping a 10-pound steel ball from heights of 4 inches, 8 inches, and 12 inches, then measuring the disturbance it causes. In this case, the bigger the lines on the graph, the bigger the disturbance and the higher the motion transfer.
As you can see on the graph, the motion carries a decent amount for an all-foam bed.
Responsiveness
Responsiveness refers to how quickly a mattress reverts to its original shape after applying pressure. Memory foam usually has a low response to pressure, while hybrid mattresses with coils tend to have a high response to pressure.
The Lull is surprisingly responsive for a memory foam mattress. When testing this bed, I found it easy to switch between different sleeping positions and move around. The Lull doesn’t sink much, making it a solid mattress for combination sleepers looking for an all-foam option.
Cooling
A lot of factors go into how cool a mattress will sleep. The materials inside the mattress largely contribute to whether it traps heat or releases it. Memory foam is generally prone to trapping heat, but the Lull’s breathable top cover and gel-infused foams should help keep things cool at night.
I tested the Lull with a thermal gun, a device that uses color-coded imaging to measure how much and how quickly a mattress heats up when someone lies down on it.
If it heats more than 15 degrees Fahrenheit, I consider it to have poor cooling capabilities. 10 to 15 degrees indicates decent cooling, 5 to 10 degrees indicates good cooling, and less than 5 degrees indicates excellent cooling. In the case of the Lull, the temperature only went up 7 degrees, making it a decent choice for most sleepers.
If you tend to sleep hot at night, you might prefer a hybrid mattress with better air circulation or one of our best cooling mattresses for hot sleepers.
Edge Support
I also tested the edge support on the Lull mattress. Edge support measures whether you can sleep on the edge of the bed without feeling the side of the mattress collapsing under your weight. It can also help you determine a mattress’s durability and whether it may sag over time.
When sitting on the edge and the corners of the bed, I noticed a good amount of sinkage but never felt unstable or like I was falling off. However, I felt much more comfortable lying on the edge. At one point, my body was halfway off the bed, but I still felt plenty of support.
When I measured the sinkage with a yardstick, the layers sank only 2 inches when applying weight to the edge.
While not ideal for those needing strong edge support, such as individuals with mobility issues, the Lull is a strong contender for couples who use the entire surface of the mattress.
Lull Mattress Performance For Couples
Overall, I think this mattress could be a decent pick for couples who want a memory foam bed. The Lull is responsive enough for sex and does a decent job at keeping things cool for a memory foam bed.
On the other hand, if your partner is an extra hot sleeper, you might want to find something with better cooling capabilities. Couples with a wiggly pet (or partner) might also want to look for a bed with better motion isolation, as they will likely feel every movement throughout the night on the Lull.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. Lull features a 10-inch, all-foam design with a memory foam comfort layer. I think the Lull does a great job at preventing sleepers from overheating, which some memory foam mattresses can be prone to.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. Lull features a 10-inch, all-foam design with a memory foam comfort layer. I think the Lull does a great job at preventing sleepers from overheating, which some memory foam mattresses can be prone to.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress.Lull Mattress
Material
Foam
Trial Period
365 nights
Shipping Method
Free shipping
Firmness
Medium-soft: 6/10
Warranty
Lifetime warranty
Price Range
$$$$$
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Financing Options
Lull Mattress
Material
Foam
Warranty
Lifetime warranty
Firmness
Medium-soft: 6/10
Shipping Method
Free shipping
Trial Period
365 nights
Price Range
$$$$$
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Financing Options
Lull Mattress
Material
Foam
Firmness
Medium-soft: 6/10
Trial Period
365 nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Financing Options
My Final Thoughts About the Lull Mattress
Now that we’ve made it through all the tests, I want to go over who would benefit most from the Lull mattress and who might want to look for another option.
Who I Recommend the Lull Mattress for
- I think this mattress would be great for back sleepers. it offers a mix of pressure relief and spinal support. The memory foam comfort layer provides some cushioning, while the firmer poly foam layers help elevate the hips in line with the spine.
- This could also be a great choice for combination sleepers who prefer an all-foam bed. These sleepers should have no trouble alternating between different positions at night.
- Couples who prefer a memory foam bed will find lots to love here. The Lull is responsive enough for sex and has surprisingly good cooling capabilities for an all-foam mattress.
Who I Don’t Recommend the Lull Mattress for
- Stomach sleepers might not get enough support on this mattress. It’s likely that your hips will sink into the bed, throwing the spine out of alignment. Strict stomach sleepers will probably want to look for something firmer.
- The Lull mattress might be too firm for light side sleepers, especially those with sensitive joints. These sleepers will need a softer mattress that offers better body contouring and more cushioning.
Lull Mattress Pricing and Sizing
I’ve broken down the price of the Lull mattress in the chart below. Be sure to also click on our Lull mattress coupons in this article to save some additional money.
Prices below are before discount or offer on each size.
| Size | Dimensions | Weight | Price |
|---|---|---|---|
| Twin | 38″ x 75″ x 10″ | 48 lbs | $749 |
| Twin XL | 38″ x 80″ x 10″ | 52 lbs | $849 |
| Full | 54″ x 75″ x 10″ | 66 lbs | $949 |
| Queen | 60″ x 80″ x 10″ | 77 lbs | $1,049 |
| King | 76″ x 80″ x 10″ | 96 lbs | $1,349 |
| California King | 72″ x 84″ x 10″ | 94 lbs | $1,349 |
Lull Mattress Policies and FAQs
Does Lull offer a mattress warranty?
All Lull mattresses come with a lifetime warranty.
Does the Lull come with a sleep trial?
Yes, Lull offers a 365-night trial period with this bed. If you decide you don’t like your Lull within this period, you can return it for a full refund.
Do you need a box spring with the Lull?
No. The Lull, like many mattress-in-a-box beds, is designed to work on a slatted bed frame and doesn’t require a box spring. That said, if you already have a box spring or you prefer to use one, feel free to do so.
Can you flip a Lull mattress?
No, you should not flip a Lull mattress. The support layer is on the bottom, so if you did flip it, you’d be sleeping on a super-firm surface. If you’re worried about wear, aim to rotate your mattress 180 degrees approximately every six months.
Lull Mattress Vs
If you’re looking at the Lull, then you might also be considering other popular online mattresses. So let’s compare the Lull to some of its mattress-in-a-box competitors here!
Purple
- While the Lull is an all-foam mattress, the Purple uses a proprietary hyper-elastic polymer in its comfort layer. You won’t find this unique material in any other mattress.
- The Purple’s hyper-elastic polymer creates a medium firm feel and balances support with pressure relief, much like the Lull. The hyper-elastic polymer is bouncier than the Lull’s foams, so you’ll enjoy more springness and mobility on the Purple.
- While the Lull uses gel to dissipate heat, the Purple’s temperature-neutral polymer does an even better job of sleeping cool. It could be the better choice for folks who are prone to overheating.
- Like the Lull, the Purple is probably best suited to average weight back and side sleepers thanks to its balance of support and comfort.
The Purple is more expensive than the Lull. Has the Purple piqued your interest? Learn more about this mattress in our detailed review!
Nectar
- Like the Lull, the Nectar is an all-foam bed that uses memory foam for comfort.
- While the Lull has 1.5” of memory foam, the Nectar has nearly 5” of this material. There’s more room to sink into the Nectar, and it’s maybe a touch softer than the Lull.
- Thanks to its thick memory foam layers, the Nectar could be an especially good match for side sleepers, who need plenty of pressure relief around the shoulder and hip.
- Memory foam lovers might really appreciate the Nectar, because it uses a ton of this material. It offers classic memory foam characteristics such as body contouring, sinkage, and pressure relief.
- The Nectar and Lull are fairly comparable when it comes to price.Need to know more about the Nectar? Check out our full review!
Curious to know how the Purple and Nectar stack up? Check out our full Nectar vs Purple comparison.
Still mulling over the Lull? Take a look at our mattress performance rating for the Lull mattress below.
Our Review Process
At Sleepopolis, our team of Certified Sleep Science Coaches personally test each mattress. We start by unboxing the mattress to figure out how difficult (or easy) it is to get the mattress from the box to the bed. Then, we spend time laying on the bed in different positions, taking time to assess it on our backs, stomachs, and sides. Next, we perform our Sleepopolis tests, using specialized tools to measure qualities like motion transfer, bounce, and pressure relief. Our last step is to open up the mattress and take a look at each layer. These steps allow us to give our final verdict on the mattress.
