Updated at: 01-06-2022 - By: Jane

Memory foam mattresses tend to generate the greatest heat in comparison to other types of mattresses. Memory foam beds, on the other hand, are reported to produce overheating by 15% of users. 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 provide you some suggestions for keeping your foam mattress cool while you sleep.

Why Does Heat Wake Me Up?

Body temperature regulates your sleep-wake cycle, and as we prepare to sleep, our body temperature dips. Some researchers think taking steps to cool down before bed, such as a hot shower or bath to increase blood circulation and disperse heat, can help us fall asleep faster.

8 Heat Busting Techniques Mattress Makers Use to Help You Sleep Cool |

In REM sleep, our body temperatures drop 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. As a result of its dense structure and air bubbles, memory foam restricts airflow. Because air bubbles are dislodged when foam is crushed, it restricts airflow.

The body’s ability to self-regulate temperature relies on body-to-air contact. Because high-density materials have limited airflow, overheating while lying on a foam mattress is normal.

A few decades ago, the density of foam mattresses was so high that they trapped heat and moisture, making them uncomfortable to sleep on. Breathability and moisture wicking are two of the most important features of modern foams.

Mattress firmness is an important consideration for hot sleepers, since a mattress that is overly soft can cause them to overheat. Foam materials don’t compress as much beneath you on firm foam beds since sinkage is discouraged. The “hugging” sensation is caused by the increased sinkage of plush materials. As a result, the “hug” sensation can become excessively hot instead of relaxing.

Copper, graphite, or gel-infused mattresses can help keep you cool while you sleep.

How to Make a Memory Foam Mattress Cooler

Memory foam has a tendency to trap heat. 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 or cushion, or even new sheets, are the most common solutions.

Mattress Toppers

Adding a mattress topper is an easy way to change the feel of a bed without having to buy a new mattress. Although feathers, down, and wool toppers, as well as memory foam, polyfoam, and latex variations are available, these materials are the most common. A mattress topper can make your mattress seem cooler and more comfortable, depending on the design and materials utilized.

The average thickness of a mattress topper is 1-4 inches, and they’re inexpensive when compared to the cost of a new mattress. 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. For those who prefer a cooler night’s sleep, there are cooling mattress toppers available that use a variety of innovative technologies to maintain a consistent temperature.

Mattress Pads

In order to protect your mattress, you should use a mattress pad. Because of their thin nature, they won’t have much of an impact on your bed’s comfort or feel, but they can aid in cooling.

Breathable cooling mattress pads often come in the form of natural cotton, which is both soft and cool at the same time. Some can also aid in the removal of moisture from the bed, resulting in a more comfortable sleep.

How to Make a Memory Foam Mattress Sleep Cooler | Sleep Foundation

Cooling Sheets

New bedding are one simple solution. As a barrier between the sleeper and the memory foam mattress, the sheets are an excellent choice. The material and texture of a mattress’s sheets can have a major impact on how cool it feels. Compared to the more permeable cotton percale sheets, flannel sheets are a popular alternative for winter sleeping. Flannel sheets are thicker and warmer.

Cooling sheets come in a variety of varieties, each with its own unique design to keep you more comfortably cool as you sleep. To enhance comfort and cooling, these goods typically have moisture-wicking properties. High-quality cotton or linen is a popular choice for this purpose.

Cooling Pillows

Pillows are another accessory that may be time for a change, as well. Having a heated head or neck is likely to make the rest of your body feel uncomfortable..

Lightweight and breathable fabrics, such as cotton or linen, are common in good cooling cushions. Solid memory foam does not sleep as cool as latex, buckwheat, down substitute, or shredded foam fills. For those who prefer a cooler night’s sleep, several pillows feature cooling panels, gel or copper-infused foams, and other technologies.

Controlling Your Sleep Environment

Controlling several aspects of your bedroom environment can also help you get a better night’s sleep.




a cooling system

Consider a New Mattress

If you’ve exhausted all other options and your current mattress is still keeping you warm, you may want to consider a new one.

Memory foam has improved greatly in recent years, so keep that in mind. 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 foams before you buy another memory foam mattress.’

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

Mattresses with innersprings are most recognized for their cooling qualities. The cores of the innerspring coils encourage increased airflow. As a result, innerspring mattresses are more susceptible to sagging and the growth of allergens in the mattress.

Memory foam mattresses are supportive and contoured, but latex mattresses are cooler. With its bouncey surface and inherent capacity to draw away moisture and heat, it is a favorite of many.

Memory foam or latex layers are sandwiched between an innerspring core in a hybrid mattress. Mattresses like these have cooling options, however they don’t match innerspring beds because of the foam layers on top.

Other Ways to Keep Cool

You don’t have to swap out your bed’s frame, mattress, and linens to keep cool. There are a variety of other things you may do to create a relaxing atmosphere in your bedroom.

  • Taking a warm bath 90 minutes before bedtime will help you sleep better if you lower your thermostat to between 60 and 75 degrees Fahrenheit.
  • To avoid waking you up at night, avoid exercising too close to bedtime. If you’re unable to work out in the morning or during your midday lunch, schedule your exercises for as early in the evening as possible. You should be alright with a few light stretches before you go to bed.
  • Turn off your lights and electronic devices two hours before going to sleep. Turning them off prevents heat accumulation by reducing the amount of light that they produce.
  • 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 airy pajamas to bed. Wearing cotton or bamboo pajamas instead of silk or polyester pajamas is the healthier option. To ensure maximum airflow, wear pajamas that are not too tight.

Frequently Asked Questions

How do you cool down on a memory foam mattress?

Bedding made from Tencel, bamboo, or organic cotton tends to be more breathable. In order to avoid overheating, steer clear of garments made of synthetic fibers or wool. Taking a warm bath before going to sleep can help you fall asleep more quickly and have a better night’s rest, as it lowers your body temperature.

The Big One® Cool Flow Gel Memory Foam Mattress Topper

What is the best mattress for hot sleepers?

Mattresses featuring cooling technologies and materials, such as gel memory foam, open-cell foam, plant-based foam or hybrid mattresses combining memory foam and coils, are recommended for people who have a tendency to overheat when sleeping.

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

A medical condition, such as hormones, worry, or even the virus could be to blame for night sweats on a memory foam mattress. In order to avoid making your condition worse, consider a mattress that has an open-cell or plant-based cover and responsive, cooling comfort layers.

What’s the best room temperature for sleep?

Your thermostat should be set between 68 and 72 degrees Fahrenheit to ensure a good night of sleep. Use a fan or open a window instead of turning up the air conditioning to save money.

What are the coolest mattresses?

Because innerspring mattresses have a coil foundation, 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, become unsteady quite rapidly as well. 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 be included in a cooling mattress for overheated sleepers. Additionally, a firm mattress will keep you cooler than a softer mattress because it doesn’t have the same amount of full-body contact as a soft mattress.

Can a memory foam mattress make you sweat?

Excessive heat retention by a memory foam mattress might result in excessive perspiration. Talk to your doctor if you continue to sweat excessively while you sleep, and wear light, breathable sleepwear.


Back pain sufferers and those who require pressure relief will find that memory foam is an excellent choice. However, you may be concerned about the heat retention of your foam mattress!

Mattress toppers and cooling pads can be used in place of a new mattress if that isn’t an option. The bed’s ability to breathe and wick away moisture can be improved by using bedding made of natural fibers. 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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