Soon, the weather will start to warm up, the humidity will rise, and the summer heat will make it impossible to get a good night's sleep. Tossing, turning, and waking up drenched in sweat and exhausted from humid nights will now be the norm, but this doesn’t have to be the case.
You see, summer has a way of bringing the good and bad together; the bad being the heat, obviously, but we finally have a way around that. And no, we’re not talking about a less-effective quick scheme. We’re talking about cool mattresses that literally last you for years.
In this guide, we’ll help you understand what to look for in a mattress as a hot sleeper and recommend the best mattresses.
Let’s dive in.
What Do You Look for in a Mattress as a Hot Sleeper?
When shopping for a mattress as a hot sleeper, you’re ideally targeting ‘cool mattresses’, right? Not just any fluffy white spring with a mattress tag on it. However, beyond these two specifications, there are some advanced features you should consider before you commit to buy.
So here are some key factors to consider:
1. Breathable Comfort Layers
You may already know this, but as a hot sleeper, dense memory foam is not for you. This kind of foam traps body heat and slowly gives you a hug-like feeling, which immediately translates to warmth. And warmth for a hot sleeper? Immediately no!
In contrast, mattresses made from materials with an open-cell structure or natural fibre let the air circulate. Take the example of latex and certain polyfoams. They are naturally more breathable, especially compared to the standard memory foam.
Since we’re leaning more towards the open-cell structure, let’s talk about open-cell polyurethane foams. This type of structure means that the mattress has tiny foam cells throughout, but they aren’t as tightly packed. The open cell design allows for better air circulation, meaning heat is also easily expelled.
With that in mind, remember that as a hot sleeper, memory foam mattresses may not be for you, but open-cell foam mattresses are your best bet.
2. Cooling Infusion and Layers
Many modern mattresses are now made with cooling ingredients; however, not all of these ingredients are effective in maintaining a cool temperature. As a hot sleeper on the hunt for a superb mattress, opt for gel or copper-infused foam, as these materials actively draw heat away from your body.
With the two types of foam, gel and copper, you don’t get any heat pooling, thanks to their gel beads and copper threads, respectively. That’s why they keep you cool instead of making you overheat.
Such mattresses also help transfer heat out of the bed, making them a must-have!
3. Support Core and Build
As a hot sleeper, you have to set standards for the core of your mattress. Don’t settle for anything other than a pocketed coil (hybrid) core, because it provides a gold standard for airflow.
Now, all other memory foam mattresses can still be cool, but only if they are not too dense or covered by heat-trapping layers.
Now, let’s talk about the build. Firmer or medium-firm foams tend to run cooler than ultra-plush mattresses. Why? Well, plush mattresses that conform closely to the body tend to trap more heat than a firm, responsive surface.
That may be a lot to take in, but in short, a very soft memory-foam hug retains the warm air, while a firmer mattress allows the air to circulate around your body. Additionally, the ‘ideal’ cool mattress is one with a mid-firm feel, allowing it to contour for pressure relief without being so soft that air can’t flow. Everything should be at a ‘demure’ level.
4. Breathable Covers and Fabrics
Now that we’ve discussed the mattress features, the covers also play a significant role. As a hot sleeper, look for covers made of moisture-wicking, breathable fabrics. Great examples of such fabrics include Tencel™, organic cotton, or technical fibres.
These kinds of fibres pull sweat away from your body, allowing it to evaporate so you don't get that sticky, icky feeling.
5. Finally, Certifications and Safety
Given the prevalence of hazardous chemicals worldwide, it’s only right that you verify the certification of the materials used in making your mattress.
Ensure the materials are made without ozone-depleting chemicals, formaldehyde, or heavy metals, and have very low VOC (volatile organic compound) emissions.
All these checks are essential so that you don’t end up breathing toxic chemical fumes in your sleep. Imagine how damaging that will be in two years or more! And yes, safety doesn’t cool you down, but there's a level of comfort knowing that you’re not sleeping on toxic materials that could lead you to your deathbed.
Now, with all these features at the back of your mind, let’s see what Polysleep has to offer.
Best Polysleep Mattresses Handpicked for Hot Sleepers
Polysleep offers a range of memory-foam mattresses that have the cooling features highlighted above. Here are the top picks that serve hot sleepers extremely well:
1. Polysleep Origin 2.0 Mattress
This is the most popular all-foam model, featuring an open-cell hybrid foam comfort layer and ventilated support foam.
One of its key features is breathability, as its open-cell memory foam allows airflow and regulates temperature, resulting in a better, cooler sleep. In practical terms, this mattress is not clingy. It won’t hug you so tightly that heat gets trapped.
The mattress also has an antimicrobial top layer, which is good for staying fresh, and on top of that, a machine-washable cover.
The Origin 2.0 is a medium-feel mattress, offering a supportive yet contouring feel. All those design choices mean less nightly overheating, and if you’re a hot back or side sleeper, the mattress gives you the cool, hygienic sleep surface you crave.
2. Polysleep Zephyr 2.0 Mattress
If you’re looking for a high-end, tech-packed mattress, Zephyr is the mattress for you. It combines Nanobionic technology (a fabric that harvests your body’s infrared heat and releases it) with two specialised cooling layers: KulKote, a phase-change coating, and GelFlex Plus, a gel-infused foam.
This mattress is a game changer for hot sleepers because its cover and GelFlex layer effectively draw heat away from you. And as the heat is drawn away, the KukKote layer captures and dissipates it.
Now, if you thought all that tech was the only thing Zephyr has to offer, you’re in for a surprise. The mattress still features Polysleep’s trademark support, making it ideal for hot sleepers who want a plush feel while staying cool.
3. Polysleep Aura Mattress
The Aura is a well-balanced zone support foam mattress that features a top open-cell hybrid foam top layer for airflow and a zoned hip-and-shoulder support layer beneath.
The mattress cover is a polyviscose blend, making it quite breathable, and with the medium feel, there’s no way you’ll get hot.
While the Aura lacks the extra gel or phase-change layers like Zephyr, its open-cell top foam and zoned structure still promote the cool summer sleep you need.
With its support still being on point, Aura simply strikes the right balance.
4. Polysleep Sierra Mattress
If you are a hot sleeper on a budget, come closer because Polysleep’s Sierra mattress has you covered. Its thin profile and simple two-layer build mean there’s less foam to insulate heat.
The mattress’s top 2″ layer is Polysleep’s open-cell hybrid foam (3.0 lb/ft³), which allows air to circulate. The cover is also made of lightweight polyester, so it traps little warmth.
While the Sierra is firmer and more basic than the other mentioned models, it still works in favour of cooling because the firmer foam doesn’t envelope your body as much, so you won’t get “stuck” in it.
Additionally, it features the same CertiPUR-US certification and ISO antimicrobial treatment as the other three mattresses, ensuring it’s safe and resistant to bacterial growth.
In short, the Sierra’s affordability doesn’t sacrifice breathability: its low profile and open foam make it a surprisingly cool sleeper for its price point.
5. Polysleep Memory Foam Mattress
This is Polysleep’s all-time OG. It has a 2.5″ open-cell hybrid foam comfort layer (ISO certified) over supportive poly foam. Like the others, its open-cell top layer is designed for airflow.
Here’s a little secret: this mattress has a medium-firm feel overall, giving a responsive surface, and because it’s thinner than the Zephyr and Origin 2.0, it tends to be cooler. We are not saying you should drop the rest, but if you know, you know. This mattress is the GOAT.
On top of all those features, you also get Polysleep’s integrated support frame, which prevents any form of sagging. If you’re not already looking this mattress up, what are you waiting for?
All we can say is that if you are a hot sleeper who wants Polysleep’s core offering, this mattress is a solid choice.
To sum it all up, each of these mattresses is backed by Polysleep’s risk-free 100-night trial (shipping is free in Canada) and a Canadian warranty. Feel free to test them in-store or online to find what truly works for you.
Polysleep Takeaway
If you’ve spent one too many nights flipping your pillow, kicking off the sheets, or waking up drenched in sweat, you’re not alone. Being a hot sleeper in summer is rough, but the good news is you don’t have to deal with it anymore.
Polysleep mattresses were built for you. For the tossing, turning, overheated version of you that just wants to sleep through the night without a heatwave in your bed.
So whether you're looking for breathable basics or tech-packed coolness, there’s a mattress here that lets you finally say: I slept, and I stayed cool.
You deserve better sleep, too, and this summer, you’re finally getting it.
