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Sleeping Cool

Sleep Science · 06/09/17

YS Blog Sleeping Cool - Sleeping Cool

Getting your body to the right temperature could work wonders for your beauty sleep. This is a deceptively simple trick, so why isn’t everyone doing it? We thought the concept merited a little deeper dive. Here’s what we found.

The Right Stuff

As it turns out, what you sleep on – and what you sleep under – both factor in heavily to getting your body to its temperature happy place when sleeping. Let’s start with what you’re laying your sleepy body to rest on: a mattress.

It will come as no surprise when we say that not all mattresses are created equally, but you may not have thought about how the material you’re sleeping on factors into this. For instance, memory foam is fantastic for its body-conforming magic, but it also tends to be super hot due to its density and the fact that your body sinks into it, literally wrapping you in your own heat. If foam is your thing, you’ll want to look for brands (like ours) that intentionally build in cooling features. For us, it’s a moisture wicking mattress cover, along with layering a lighter-density foam or organic latex over the memory foam so that you get the best of both worlds–cushy conformity and a cooler night’s sleep

Going Under Cover(s)

Now let’s talk about what you’re wrapped up in as you snooze: the humble sheet. When it comes to temperature this layer is thin but mighty. For the most part, it’s all about the breathability and thickness of the fabric.

On the hot end of the spectrum are sexy-yet-sweat-inducing classics like satin, which tend to block airflow, partly because they are thinner and more readily conform to your shape, locking in heat. At the cooler end are those made of natural fibers which can be just as thin, but are a little less clingy and more breathable so you get more airflow. E-Bay gives a pretty nifty guide here.

To Clothe, Or Not To Clothe

While getting too hot is problematic and tends to be the hot topic (hehe) everyone talks about, being too cold is equally threatening to a proper night’s rest. For many, feet are the biggest chilling culprit, meaning a pair of socks may be in order once the temperature drops outside. Just how does one know whether or not their clothes should go adios when it’s time for lights out? The simple answer to this dilemma is to wear clothes to bed if you find yourself getting cold at night, and to ditch the clothes if you can’t seem to get cool enough. We know, we’re practically rocket scientists.

Your Personal Best

So here’s the rub, and why a lot of us have trouble getting it just right: we each have a different “ideal” temperature. From one body to the next, the perfect temperature is unique. And that means the outside environment also might need to be slightly different. And if you happen to be someone who doesn’t sleep alone, the other person (or pet) adds to the temperature equation. One partner may want a blanket year round and the other may barely need a sheet through most of the year.

Ultimately, finding the perfect balance is a blend of a pretty complex set of factors. So take the notes from above, experiment a bit, and let us know what “perfect” solutions you come up with.


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We firmly believe that creating a new business isn’t just about turning a profit, it’s also about bettering the world around us. With this philosophy in mind, every aspect of our design and manufacturing process was meticulously chosen to minimize the environmental impact of introducing a new product into the market.


Our flexible polyurethane foams meet CertiPUR-US® program standards for content, emissions and durability and are analyzed by independent, accredited testing laboratories. Moreover, they are produced without ozone depleters, PBDEs, TDCPP, or TCEP flame retardants, and have Low VOC (Volatile Organic Compound) emissions for indoor air quality. Learn more about CertiPUR-US® at

The latex used in our mattress constructions is certified to the Global Organic Latex Standard (GOLS), a new certification available to mattress manufacturers. Control Union Certifications (CU), a globally recognized organic certifier, developed GOLS based on years of experience certifying organic products in other industries, including foods and textiles. This certification ensures that all materials and manufacturing processes adhere to strict and specific global organic standards.

We build products in the United States to decrease transportation fuel and subsequent greenhouse gas emissions, and aim to deliver innovative solutions that evolve with you as your needs change. And, of course, our delivery boxes are made from recycled materials.

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