How to Make a Memory Foam Mattress Sleep Cooler? Helpful Information Update 06/2024

Memory foam mattresses tend to generate the greatest heat in general. 15% of memory foam bed owners say they overheat when sleeping on them. Due to the dense nature of the foam, hot beds can cause uncomfortable night sweats; however, you can make your bed cooler.

Here, we’ll explain why memory foam absorbs heat and give you some suggestions for keeping your foam mattress cold all night.

Why Does Heat Wake Me Up?

Body temperature regulates your sleep-wake cycle, and our body temperature declines as we prepare to go to bed. According to some researchers, a hot shower or bath before bedtime can help us fall asleep faster by increasing blood circulation and dispersing heat.
How to Make a Memory Foam Mattress Sleep Cooler | Sleep Foundation

As we enter REM sleep, our body temperatures fall even farther. In order to get the correct amount of REM sleep, we rely on elements like bedding and air conditioning. If our surroundings are excessively hot or cold, it might wake us up and disrupt our slumber.

Why Do Memory Foam Mattresses Sleep Hot?

Among the many benefits of a memory foam mattress is its ability to adjust to your body and relieve pressure points. It’s hard to breathe in memory foam since it’s packed full of air bubbles that aren’t connected. Because air bubbles are dislodged when foam is crushed, it restricts airflow.

In order to regulate one’s own body temperature, one must be in direct touch with the air. Overheating when laying on a foam mattress is usual due to the limited ventilation provided by high-density materials.

A few decades ago, the density of foam mattresses was so high that they trapped heat and moisture, making them uncomfortable to sleep on. Modern foams are designed to draw moisture away from the skin and keep it dry.

To avoid overheating when sleeping, it’s important for hot sleepers to pay attention to the hardness of their mattress. As a result, the foam components beneath you don’t decompress as much as they would with a softer mattress. The “hugging” sensation is a result of plush fabrics, which increase sinkage. The “hug” sensation might become painfully heated instead of comforting if non-cooling foams are used.

Preventing heat retention and overheating while you sleep is possible with mattresses laced with copper, graphite, or even gel.

How to Make a Memory Foam Mattress Cooler

Memory foam has a tendency to retain heat from the wearer’s body. Memory foam’s heat retention capabilities can’t be directly controlled, but you can improve your bed’s general temperature regulation by using bedding accessories. A mattress topper, mattress pad, or even a fresh set of sheets are usually the best options for this.

Mattress Toppers

Adding a mattress topper is an easy way to change the feel of a bed. Other materials like feathers and wool are also available as toppers, but memory foam and polyfoam are the most common. A mattress topper can make your mattress seem cooler and more comfortable, depending on the design and materials utilized.

When compared to the expense of getting a new mattress, a mattress topper typically ranges between four and six inches thick. You should look for a topper made of gel-infused memory foam, latex, or another breathable and cool substance if you want to keep cool. Temperature regulation elements range from permeable materials to the usage of phase-change materials or temperature-controlled water tubes in cooling mattress toppers.

Mattress Pads

In order to protect your mattress, you should use a mattress pad. Generally speaking, they will not greatly alter the comfort or feel of your bed, but they can aid with cooling.
Do Cooling Gel Memory Foam Mattresses Really Keep You Cool? - Mattress Clarity

Breathable and cool materials, such as natural cotton, are used to make good cooling mattress pads for your bed. The wicking properties of certain can also aid to keep the mattress cool.

Cooling Sheets

New sheets may be all that’s needed for a quick repair. A layer of sheets protects the sleeper’s skin from the memory foam mattress’s surface. When it comes to keeping a mattress cool, factors like the material and weave of the sheets have a big role. Compared to the more permeable cotton percale sheets, flannel sheets are a popular alternative for winter sleeping. Flannel sheets are thicker and warmer.

In order to keep you cool while you sleep, there are a variety of cooling sheets available. Moisture-wicking properties are common in these goods, which improves cooling and comfort by wicking away perspiration. High-quality cotton or linen is a common choice, as is a fabric that feels cool to the touch.

Cooling Pillows

Your pillow could also be a good investment. Because our heads and necks are particularly heat-sensitive organs, when they get uncomfortable, the rest of our bodies will follow suit.

Cooling pillows that are lightweight and breathable, as well as made of soft, cool fabric like cotton or linen, tend to be the most effective. Solid memory foam mattresses tend to sleep hotter than mattresses with latex or buckwheat fillings, shredded foam fillings, or a down replacement. Cooling panels, gel-infused foam, and copper-infused foam are among the cooling technologies used in the production of some pillows.

Controlling Your Sleep Environment

Controlling the temperature, humidity, and lighting in your bedroom can help you get a better night’s sleep.

Airflow On hot nights, it’s crucial to keep your bedroom well-ventilated. Open a window or buy a small circulating fan to help circulate the air. It’s crucial to keep the air moving around your bed as well. Consider purchasing a bed base if your mattress is on the floor. This will help to keep your mattress cool. A slatted bed frame design may also be an option if you have an air-flow-friendly mattress, depending on your preference.

Choosing the right sleepwear can have a big impact on how warm or cold you sleep in the morning. Cotton or thin wool are the best materials for summer clothes because they are both breathable and light. As an alternative, some people choose to sleep in nothing but their underpants.

When they are turned on, lights such as bedside lamps, overhead lights, and other electrical devices all generate heat. Turning off lights and electronics long before night will help reduce the temperature in your room if it’s too warm.

a cooling system If you have air conditioning in your home, it may be a good idea to turn it on during the hottest days and nights. Although it can be costly, the value of a good night’s sleep cannot be measured. A temperature of 65 degrees Fahrenheit is excellent for sleeping in one’s bedroom.

Consider a New Mattress

After you’ve exhausted all other options and your bed continues to retain heat, you may want to consider purchasing the finest mattress for keeping you cool.

It’s worth noting that memory foam has improved considerably in the last few years. It’s time to get a new memory foam mattress, because your old one has outdated cooling technology. First, consider gel-infused or plant-based memory foams.

Even if a new sort of bed doesn’t work out, it’s worth a try.

The cooling effects of innerspring mattresses are well-known. The cores of the innerspring coils encourage increased airflow. Innerspring mattresses, on the other hand, are more likely to droop and to increase the accumulation of allergens within the mattress.

Memory foam beds’ supporting and shaping qualities are rivaled by those of latex mattresses’ cooling features. With its bouncey surface and inherent capacity to draw away moisture and heat, it is a favorite of many.

A memory foam or latex top layer is sandwiched between an innerspring base in a hybrid mattress. These mattresses can be cooled, but they can’t compare to innerspring beds because the foam layers on top prevent as much airflow.

Other Ways to Keep Cool

To keep cool, you don’t have to change your bed frame, mattress, or linens. There are a variety of other things you may do to create a relaxing atmosphere in your bedroom.

  • Your thermostat should be set between 60 and 75 degrees Fahrenheit. Fahrenheit and a warm bath 90 minutes before night will help you sleep better.
  • To avoid waking you up at night, avoid exercising too close to bedtime. Don’t wait until the last minute to work out if you can’t work out during the day or over your lunch break. Exercising before going to bed is perfectly good.
  • Two hours before you want to go to bed, turn off all of your lights and electronics. Turning them off minimizes a buildup of heat as well as light.
  • Take a sip of water before going to sleep. Even if it means getting up in the middle of the night to use the restroom, it can help you relax before going to bed. If you wake up in the morning feeling overheated, drinking water can help.
  • Wear light pajamas for bed. Wearing cotton or bamboo pajamas instead of silk or polyester pajamas is the healthier option. Keep your pajamas loose-fitting for better breathability.

Frequently Asked Questions

How do you cool down on a memory foam mattress?

Tencel, bamboo, and organic cotton are all great options for cooler bedding. Wool and synthetic blends trap heat, so stay away from them. Before going to bed, take a warm bath to lower your body temperature, which can help you sleep more soundly.

What is the best mattress for hot sleepers?

People who sleep overheated should look for mattresses with cooling technologies and materials like gel memory foam, open-cell foam, plant-based foam, or hybrid mattresses with a combination of memory foam and coils.

How do I keep from sweating on my memory foam mattress?

A medical condition, such as hormones, worry or the virus, could be to blame for night sweats on a memory foam mattress. Choosing a mattress with a breathable cover and responsive, cooling comfort layers composed of open-cell and/or plant-based foams is the best way to avoid making your condition worse.

What’s the best room temperature for sleep?

Sleep better if your thermostat is set at 68-72 degrees Fahrenheit. Open a window or use a fan instead of air conditioning to reduce your cooling costs.

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What are the coolest mattresses?

Because innerspring mattresses feature a coil base, they are naturally cooler than other types of mattresses. Air may easily move between the coils because of the open areas between them. Innersprings, on the other hand, degrade quickly. You can sleep cool and comfortably on a mattress made of gel foam or plant-based foam.

Which memory foam mattress is the coolest?

Gel beads, graphite, copper, and charcoal should all be included in a hot sleeper’s mattress to help keep them cool at night. In addition to keeping you cooler, a firmer mattress is less likely to put your entire body in direct touch with it.

Can a memory foam mattress make you sweat?

Excessive heat retention by a memory foam mattress might result in excessive perspiration. Excessive sweating may be relieved by wearing breathable, moisture-wicking bedding and by consulting your physician.


Back pain sufferers and those who require pressure relief will find that memory foam is an excellent choice. Foam mattresses can retain heat, which may be an issue for some people!

Mattress toppers and cooling pads can be used in place of a new mattress if that isn’t an option. You may improve the airflow and moisture-wicking capabilities of your mattress by using natural fiber bedding. Even if your foam mattress has been around for seven to ten years, it may be time to get a new one.

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