The Sleep On Latex Pure Green Organic is a mid-range foam bed-in-a-box mattress. It only includes latex foam, with a firm latex serving as its support layer and a softer latex for its comfort layer. The mattress cover is made of wool. The manufacturer advertises that it only uses organic wool, cotton, and latex.
Our Verdict
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Light Weight
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Average Weight
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Heavy Weight
The Sleep On Latex Pure Green Organic isn't a great option for side sleeping, regardless of your weight. It's best-suited for heavier side sleepers, whose shoulders and arms will sink into it more, which helps relieve pressure. However, its body conformity is still only decent, and you may want a softer mattress for side sleeping. Similarly, it offers mediocre body conformity for average people and poor body conformity for lighter people, so it'll put uncomfortable pressure on your arm and shoulder if you sleep on your side.
Decent body conformity for heavier people.
Highly contouring comfort layer helps with pressure relief.
Poor body conformity for lighter people.
Mediocre body conformity for average people.
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Light Weight
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Average Weight
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Heavy Weight
The Sleep On Latex Pure Green Organic is well-suited for average and heavier individuals who sleep on their backs. It offers impressive support for people in both weight categories, so your hips will stay in line with the rest of your body when sleeping on your back. While it has a firm feel and most people won't sink much into it at all, its upper comfort layer is very contouring, which helps relieve pressure around your hips and lower back. It offers similar great support for lighter side sleepers, but since lighter people will compress it less and sink into it less, you may find it feels a little overly firm, even with the highly contouring latex comfort layer.
Impressive support for people in all weight categories.
Poor body conformity for lighter people.
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Light Weight
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Average Weight
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Heavy Weight
The Sleep On Latex Pure Green Organic is well-suited for most stomach sleepers. It offers very similar great support for people in the lighter, average, and heavier weight categories, which helps keep your spine in line and prevents your back from arching when sleeping on your stomach. It's not ideal if you want an enveloping feel, and lighter people, especially, may find it feels overly firm. However, its weaker pressure relief is less of an issue for stomach sleeping, so it's still a good option for lighter individuals.
Impressive support for people in all weight categories.
The Sleep On Latex Pure Green Organic is a durable mattress. All of its layers are made of dense, high-quality latex and will resist sagging and forming indentations for much longer than lower-quality foams.
Uses only durable, high-quality latex.
The Sleep On Latex Pure Green Organic has a very firm feel and doesn't provide great pressure relief for anyone. It performs best for people in the heavier weight category, who will compress it enough for decently comfortable side sleeping. However, it only offers passable body conformity for average people and has a poor performance for lighter people, so you'll feel a lot of pressure on your shoulders and arms if you sleep on your side. Its highly contouring latex comfort layer helps relieve pressure overall, but doesn't allow you to sink into it very far, which also hurts its pressure relief performance.
Highly contouring comfort layer helps with pressure relief.
Poor body conformity for lighter people.
Mediocre body conformity for average people.
The Sleep On Latex Pure Green Organic offers great support regardless of the weight category you fall into. It performs slightly better for lighter individuals and slightly worse for heavier individuals, but overall, it's impressively supportive for all weight categories. This helps make it well-suited for back and stomach sleeping, as it keeps the heavier parts of your body, such as your hips, from sinking too far, thereby maintaining spine alignment, which is crucial for comfortable back and stomach sleeping.
Impressive support for people in all weight categories.
The Sleep On Latex offers a great cooling performance. It transfers a significant amount of heat away from your body in the first hour of the night, allowing you to stay cool as you fall asleep. After that, this mattress continues to dissipate a lot of heat throughout the night, so you don't wake up overheated. Even if you sleep hot, this mattress should suit your cooling needs.
Great cooling performance.
The Sleep On Latex delivers good motion isolation and dissipation. When your sleeping partner tosses and turns, you feel it mainly in the lumbar region and just a bit near your head and feet. Motion dissipates quickly, so you're less likely to be woken up by a partner shifting sleeping positions or a pet jumping on the bed.
Good motion isolation makes your partner's movements less likely to disturb you.
The Sleep On Latex is a superbly responsive mattress. It bounces back almost instantly after being compressed, which helps avoid any feeling of being stuck in place. Its somewhat bouncy feel also makes it feel easy to change sleeping positions.
Fantastic responsiveness makes it easy to switch sleeping positions.
Performance Usages
Changelog
- Updated Mar 09, 2026: We converted this review to Our Verdict section to clearly show the suitability of a mattress for your weight and sleeping position.
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Updated Dec 12, 2025:
We rewrote portions of the review to align with Test Bench 1.1, including adding text to the new test boxes and for the newly added verdicts.
- Updated Dec 12, 2025: We converted this review to Test Bench 1.1. We've added new tests, including Body Conformity, Support, and Comfort Layers Envelopment, and also added scoring to the Bounciness test. Our usage scores have also changed, with new usages 'Side Sleeping,' 'Back Sleeping,' and 'Stomach Sleeping' replacing the 'Sleeping' verdict. We've also added 'Pressure Relief' and 'Support' performance usages. You can find more details in the full changelog.
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Updated Oct 06, 2025:
We rewrote portions of this review to align with Test Bench 1.0.1, which adds a Longevity verdict and a score to the Foam Layer Mass Density box for users interested in the mattress's durability.
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Differences Between Sizes And Variants
The Sleep On Latex mattress comes in Twin, Twin XL, Full, Queen, King, and California King sizes. There are two firmness options: Medium and Firm. We tested the Queen-sized model in Medium, and you can see the label for our unit.
If you come across another variant or have experience with a variant that performs differently, let us know in the comments.
Popular Mattress Comparisons
Sleep On Latex focuses on natural products. In addition to their mattress, they offer mattress toppers and pillows made from natural latex, organic cotton, and organic wool. The Sleep On Latex Pure Green Organic is the only mattress they offer. It stands out for its construction; aside from the cover and fire barrier, this mattress is made entirely from latex foam. Like the Saatva Latex Hybrid, this mattress is highly responsive; It springs back instantly after you compress it, which is characteristic of latex. On the other hand, its motion isolation performance lags behind options like the Tempur-Pedic TEMPUR-Adapt, which uses a mix of polyfoam and memory foam in its construction.
This mattress also has outstanding edge support, nearly matching the performance of the Beautyrest Silver BRS900. It's very cooling as well, and while it can't compete with the Purple Mattress or the Casper Snow (Canadian Version), it performs well enough to keep even hot sleepers cool. Overall, if you enjoy the feeling of latex, it's a solid option.
If you'd like to see more options, check out our picks for the best mattresses and the best firm mattresses.
The Sleep On Latex Pure Green Organic performs better than the WinkBeds The WinkBed in most aspects. The Sleep On Latex offers significantly better edge support, which increases the comfortable sleeping surface, and much better cooling, making it more suitable for hot sleepers. It's also more responsive, which makes it feel easier to move around in your sleep. That said, the Winkbed has better motion isolation, so light sleepers might prefer it.
You might prefer either the Sleep On Latex Pure Green Organic or the WinkBeds Plus. The Sleep On Latex is a very firm mattress that offers better support for average-weight and heavier people, so it's a better option for back/stomach sleeping. It's better for hot sleepers and uses more durable materials. The WinkBed's softer comfort layers make it more suitable for side sleeping, and you might prefer its slightly plusher feel.
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