We have affiliate relationships where we are paid a commission on sales through some of our links. See our disclosures.

Lull Mattress Review

Help me to welcome in the new Lull mattress! Lull is a 10″ all foam mattress designed to fit into the universal comfort feel. While Lull prioritizes supportive comfort and cooling, they have created a mattress they believe will fit the needs of most sleepers.

Does the Lull actually meet those standards? We put it to the test in this week’s mattress review! Continue reading below to find out!

In a hurry? Jump down to the review summary for the quick version

Lull Mattress
Lull Mattress

A top layer of gel infused memory foam helps the Lull mattress stay cool and breathable — a good pick for hot sleepers! 


The Lull mattress is a 10″ memory foam mattress built from 3 separate foam layers.

Layered Foams

  • Top layer (cooling & comfort) – 1.5″ of gel infused memory foam. This layer is designed to provide great cooling on the sleeping surface of the mattress, while also creating comfort by relieving pressure points for sleepers.
  • Middle layer (support) – 1.5″ of conventional foam. This transitional layer works to support the body while maintaining proper spinal alignment and even weight distribution. The combined densities of the top and middle foam layer help to ensure great support for both light, average, and heavier sleepers.
  • Bottom layer (foundation) – 7″ of dense support foam. This layer acts as the foundational base for the mattress and provides a strong, stable, and dense foundation that works with the top layers to create great support.
Lull mattress layers (top to bottom) - 1.5" gel memory foam, 1.5" poly foam, 7" support foam
Lull mattress layers (top to bottom) – 1.5″ gel memory foam, 1.5″ poly foam, 7″ support foam


The Lull’s cover mixes a modern look with a soft feel.

Although the cover may not seem like an important piece of the mattress, it can be just that. Covers help to improve breathability and cooling, while also providing a soft to the touch feel. Made from 90% polyester and 10% rayon, the Lull’s cover has a soft feel. While polyester is very lightweight, it does not lack durability either. The cover of the Lull is highly elastic. Even after a fairly abrasive tug on the cover, it was able to return to its original shape almost immediately. Additionally, this cover can be easily removed for spot cleaning.

Aesthetically, the cover has what has become the standard two-tone design, with grey side panels and white fabric on top. The side panels are built from 64% polypropylene and 36% polyester, this gives them a great resiliency to damage. I quite like the dark navy strip that divides the white fabric from the grey side panels, it’s a subtle touch that helps give the Lull mattress a clean style.

Close up shot of the Lull mattress cover
Close up shot of the Lull mattress cover

Firmness, Feel, & Support

The Lull mattress has firmness somewhere between a medium and a slightly firm feel. It’s a mattress designed to meet the needs of almost any sleeper. On the firmness scale, the Lull comes in at a 6-6.5 out of 10, with 10 being the most firm.

FAQ:  What mattress firmness do I need?

Lull firmness - 6-6.5 out of 10 (where 10 is the most firm)
Lull firmness – 6-6.5 out of 10 (where 10 is the most firm)

With regards to overall feel and support, the Lull is well above average. As a stomach and side sleeper, I found the mattress to be very supportive. I received the same response from my wife, who sleeps mainly on her side and back.

The Lull’s foam layers work well together to provide that balanced push-back feel, while not creating pressure points. The Lull rides a very fine line in this respect. If you go too firm then you may find yourself tossing and turning while trying to relief pressure, too soft and you can find a lack of proper support creates its own problems. I’m impressed the Lull is able to deliver the slightly firm feel without going too far along the firmness spectrum, leaving it close enough to the middle that it finds a balanced feel suitable to the majority of sleepers.

A huge plus for me was the minimal amount of motion transfer I saw while sleeping on the Lull. The top 2 layers of foam do a great job of dissipating most of the motion throughout the night. However, the Lull does not have instantaneous response. The foams are not extremely slow, but they do not hop right back into shape immediately after pressure is applied.

Ultra close up shot of the Lull mattress logo
Ultra close up shot of the Lull mattress logo

That said, the Lull’s slightly firm feel helps in this area also. Since there is not a dramatic hug with the mattress there isn’t as critical of a responsive need. Despite the slower response times I did not ever feel trapped or otherwise enveloped by the foams.

The edge support is above average. The 3 layers of foam do a great job supporting you while lying or sitting on the edges of the mattress. This is a positive attribute for those sleepers who prefer to sleep closer to the edge, or for amorous bedroom activities!

Additionally, bounce plays a role when talking about amorous bedroom activities and general mattress comfort. The Lull’s slightly firmer feel helps create a reasonable amount of bounce. It’s a sizable step up from traditional memory foam, but if you’re comparing it to a coil mattress it’s going to be less than this. I would say the bounce is slightly above average when compared to most other 10″ foam mattresses.

Lull mattress, King size
Lull mattress, King size

Sinkage Tests

Every mattress reviewed on Sleepopolis goes through a quick series of sinkage tests. These tests are designed to offer a comparison against other mattresses in addition to determining how it will perform under various conditions, pressures, and positions.

  • Lying on back – in a normal lying position where my weight was evenly spread across the mattress, I saw 2″ of sinkage.
  • Lying on side – while lying on my side, I saw closer to 2.5″ of sinkage.
  • Sitting on edge (conservative) – while sitting on the edge with my butt scooted back onto the mattress I saw about 3″ of sinkage.
  • Sitting on edge (aggressive) – with all of my weight placed on the edge (in a sitting position) I saw 5″ of sinkage.
  • Standing in middle – while placing all of my weight at one point on the mattress I saw 5.5″ of sinkage.

Keep in mind, sinkage will vary based upon body weight. As a reference point, I weigh 140 pounds.

Angled view of the Lull mattress
Angled view of the Lull mattress


Thinking about ordering yourself a Lull mattress? Don’t forget to grab the Sleepopolis promo link. Save $150 on any Lull with this link.

Twin XL$550
California King$950

Other Details

  • Shipping – free shipping, compressed in a box, arrives in 2-7 days
  • Warranty – 10 years
  • Trial Period – 100 nights
  • Discounts – Save $150 on any Lull with this link
  • Made in the USA

Is the Lull mattress the right one for you?

The big bottom line question, who is the Lull mattress best for?

I would recommend the Lull mattress to sleepers who:

  • Prefer a medium to slightly firm feel – sitting at a 6-6.5 out of 10 on the firmness scale, where 10 is the most firm, the Lull has a medium to slightly firm feel. Many times mattresses that venture beyond a 6 out of 10 can create pressure points or too much of a “floating on top” of the mattress feel. Even with a 6-6.5, the Lull creates great pressure relief, a slightly firm feel, and consistent support.
  • Want a cool mattress – built with a 1.5″ top layer of gel infused memory foam, the Lull does a good job of preventing heat retention in the mattress. The slightly firm feel helps in this area by preventing any type of “stuck” feeling for sleepers. The Lull is well above average with regards to cooling and is significantly better than most traditional memory foams.
  • Want minimal motion transfer – designed with 3 layers of foam, the Lull does a great job of handling motion. The top 2 layers of foam work together to dissipate much of the the motion, preventing major disturbances during the night.

For more information on the Lull mattress visit Lull.com. If you decide to give the Lull mattress a try grab our unique promo link. You can save $150 instantly on any Lull mattress order.


Slightly Firm Feel + Great Support
  • Materials
  • Comfort
  • Support
  • Value
  • Cooling
  • Edge Support
  • Sex
  • Smell
  • Company
  • Refunds
  • Trial
  • Warranty


Lull features a 10-inch, all-foam design with a memory foam comfort layer. Our testers all rated the Lull as having a medium firmness when it comes to feel. We also thought the Lull did a good job at preventing sleepers from overheating, which some memory foam mattresses can be prone to.

The following two tabs change content below.
Logan Block
Logan is the content director of Sleepopolis, which means he not only reviews new mattresses every week, but also curates all the comparisons, best of pages, and video guides on the site. He takes a straightforward, honest approach to his reviews and endeavors to give viewers an objective look at each new product he tries out. Logan has perfected his method by personally testing over 200 different mattresses, so he’s not only able to discern the overall vibe of a specific bed, but to contextualize its feel within the bed-in-a-box market as a whole. When he’s not hopping on a new bed or working with our editorial team to whip up an engaging sleep education guide, you can find him reading books on world history, walking his dog Pepper, or searching for the best cheeseburger in New York City.
Logan Block

Latest posts by Logan Block (see all)