Sleep On Latex Hybrid  Mattress Review

The Sleep On Latex Hybrid is a 30.5 cm (12") mattress, although ours was a little thicker at 33.9 cm (13.3"), so you may need to use deep-pocket fitted sheets.

The Sleep On Latex Hybrid (Firm) is a very firm mattress best-suited for stomach sleeping. It offers fantastic support for light and average-weight people and impressive support for heavier people, even compared to other firm mattresses like the Novosbed or Plank Extra Firm Luxe. However, its pressure relief performance is weak, as you might expect from a very firm mattress, and it's not a good choice for side sleepers. Some, especially lighter people, might also prefer a mattress with good support and better pressure relief for back and stomach sleeping, like the Casper Snow.

While it's not advertised as a zoned mattress, it's much firmer in the lumbar area than at the head and foot of the mattress. This is likely due to the border wire around the edges, which has different levels of tension at the head/foot versus the middle of the mattress. You can read more about this unusual design in the edge construction section.

Its body conformity is poor. It's a firm mattress, and you won't sink very much into it regardless of your weight. It offers the worst, awful conformity for lighter individuals. However, it doesn't perform much better for average-weight or heavier people, offering disappointing body conformity. Overall, it's not a good option for side sleepers, as it's not conforming enough to relieve pressure on your arm and shoulder.

This mattress offers a fantastic support performance. It's most supportive for lighter individuals. You'll barely sink into the mattress at all, including the heavier parts of your body like your hips, so it'll do an outstanding job of keeping your spine aligned if you're a back or stomach sleeper. It performs nearly as well for average-weight people. While it's not quite as supportive for people in the heavier weight category, it's still impressively supportive, making it a great option for back/stomach sleepers across a range of weight categories.

The Sleep On Latex Hybrid is a very bouncy mattress. It pushes back against your movements, which helps make it feel easy to move around on.

It's not a very enveloping mattress overall. You won't sink very much into it, regardless of your weight, so you won't feel hugged by the sleeping surface. Most of the mattress's pressure relief performance comes from its very contouring feel. The latex comfort layer molds around you, so more of the sleeping surface is in contact with your body, which helps relieve pressure despite its firm feel.

It's an extremely responsive mattress, so the sleeping surface responds practically instantly when you move. You won't feel held in place or hugged, and it's easy to change sleeping positions.

It has fantastic motion isolation. It's particularly good at dampening movement and preventing it from traveling across the mattress. You won't feel smaller movements, like a cat jumping onto the foot of the bed, and while you may feel bigger movements like your partner rolling over, you'll only feel them near the source. Motion also dissipates quickly, so the mattress doesn't seem to wobble with movement, and motion is less likely to wake you.

This mattress offers outstanding edge support. The border wire around the edges of the mattress, tension from the cover's deep tufting, and latex panels along the sides all contribute to making the edges difficult to compress. This means you can comfortably sleep right at the edge of the mattress without feeling at risk of sliding out of bed. The sides also provide a solid surface for getting in and out of bed.

Its cooling is great overall. It's not extremely cooling when you first get into bed, so it's only a decent option if you often feel overheated as you're falling asleep. However, it performs much better overnight, so you won't feel warmer and warmer as the night goes on. It's cooling enough for most people, and it's a good choice for hot sleepers who often wake up later in the night uncomfortably hot.

The mattress cover is made of organic cotton and isn't removable or machine-washable.

The edges of the mattress have an unusual design, with a steel wire around the border held in place with tension from springs. This helps give the mattress outstanding edge support. The border wire is wrapped around the mattress's support layer. There's also a thin layer of latex over the border wire, which likely helps prevent you from feeling it.

The Sleep On Latex Hybrid has a thin quilted top that includes two layers of wool. This layer wraps around the entire mattress. The comfort layer is made of Dunlop latex, a type of latex with a springier and bouncier feel compared to Talalay latex, which is also commonly used in mattresses. There's no other foam in the design, but a thick layer of organic hemp fiber between the latex and pocket coils acts as a transition layer, distributing your weight over the coils and adding some firmness.

This mattress's latex comfort layers (one on each side of the flippable mattress) are made of very dense, high-quality latex. This material will resist sagging and forming body impressions for much longer than lower-quality foams.

Both sides of this flippable mattress have the same construction, so you can flip it over to increase its durability without changing the feel. The sleeping surface is made up of two layers of organic wool quilted together and wraps around the entire mattress. Below it, each side of the mattress has a 4.7 cm (1.9") latex comfort layer and a 1 cm (0.4") hemp fiber transition layer.

This mattress has a dense layer of pocket coils for support. Individually wrapped pocket coils that can move independently from one another can help improve motion isolation and contouring compared with continuous coils. The layer is made up of tightly coiled 13-gauge springs and is quite stiff, so most people won't compress it much, which helps give the mattress its solid support performance. The springs at each corner of the mattress and the space between the four springs at each corner are stuffed with wool. This makes the springs harder to compress and likely helps make the corners more sturdy.

The latex comfort layer is quite firm compared to many mattress's comfort materials. This contributes to the mattress's less enveloping feel, as you won't sink very deeply into it.

The coils are extremely firm, especially around the head and foot of the mattress, where the steel border wire makes the coils even harder to compress. However, it's still very firm in the middle of the mattress. You won't compress the springs much, which helps give the mattress its firm, supportive feel.

The Dunlop latex layer has a very resilient, springy feel. The material seems to push back against your movements and responds very quickly, contributing to a responsive, bouncy feel.

The pocket coil layer is very bouncy. Combined with the very springy latex layer, this results in a very bouncy mattress that seems to push back against and support your movements.