How to Keep Cool on a Memory Foam Mattress?

Is your memory foam mattress too hot? Unfortunately, many people jump at the opportunity of having a memory foam mattress because they think it’s going to change their life.

While they are comfortable to sleep on and very plush, that comfort can quickly turn into heat buildup, tossing and turning, and frustration.

Since memory foam mattresses cause you to sink in so much, they create quite a bit of heat. There are a few things you can do to help cool yourself down when sleeping. By the end of this article, you should find yourself sleeping cooler and more comfortable.

Even though memory foam can trap heat, there are practical ways to cool it down without replacing your mattress. 

Let’s explore how to stay comfortable all night long.

1. Create Air Circulation

When air gets trapped under the mattress, it causes your body heat to build up.

When our body heat builds up and has nowhere to go, it causes us to sweat. We need a more breathable mattress to get a good rest.

Excess heat during sleep causes us to break our deep REM sleep, which quickly turns into a restless night and frustrating mornings. That memory foam bed you spent a bunch of money on quickly starts to feel like a waste.

How to Improve Air Circulation Under Your Memory Foam Mattress?

Airflow is key to cooling a memory foam bed. When warm air gets trapped under the mattress, it raises surface temperature and keeps heat close to your body. Here’s how to increase airflow:

Use a slatted or platform bed frame: 

• Slats let air move freely under and through the mattress, unlike solid bases.
• Keep gaps around 2–3 inches apart for balanced support and ventilation.
• If using a solid base, switch to a slatted or ventilated platform for better airflow.

Avoid placing your mattress on the floor: 

• The floor blocks ventilation and traps heat beneath the foam.
• It can also cause moisture buildup or odors over time.
• Even raising the mattress a few inches improves temperature control.

Elevate your bed by a few inches: 

• Lifting your bed by 4–6 inches encourages constant air movement.
• Use risers or an adjustable base with built-in airflow channels if possible.
• Keep the space under your bed clear of boxes or storage to maintain ventilation.

A well-ventilated base can help your memory foam mattress sleep up to 3°F cooler and prevent moisture buildup that leads to odors or mildew.

2. Use a Gel-Infused Mattress Topper

We’re starting to see more and more gel-infused items becoming popular in the mattress industry. In addition to gel, there are also Graphite and copper infusions that you can buy for your mattress topper.

These mattress toppers help cool you down by sucking out all the body heat and dissipating or dispersing it somewhere else. When we sleep, and body heat builds up, we’re creating an environment that doesn’t promote healthy sleep. Having a useful mattress topper like one of these options will help keep you fresh through the night.

How Different Toppers Help Cool Your Memory Foam Mattress?

Cooling toppers are one of the fastest ways to regulate heat on a memory foam bed.

Modern toppers use gel, graphite, copper, or latex to pull heat away from your body and promote a cooler night’s sleep.

Gel Cooling Mattress Toppers Cooling aid

• Absorb excess body heat and spread it evenly across the surface.
• Often made with gel beads or infused foam that dissipate warmth faster.
• Great for people who sleep hot or live in warmer climates.

Graphite-Infused Toppers Cooling aid

• Graphite conducts heat away from the body more efficiently than gel.
• Provides a stable, consistently cool sleep surface throughout the night.
• Works best for dense memory foam mattresses that retain more heat.

Copper-Infused Toppers Cooling aid

• Copper transfers heat effectively while also offering antimicrobial benefits.
• Helps reduce odor and bacteria buildup from sweat.
• Ideal for hot sleepers who prefer a cleaner, cooler surface.

Latex Mattress Toppers Cooling aid

• Naturally breathable and responsive, allowing steady airflow.
• Doesn’t trap heat like traditional foam; great for all-season comfort.
• Adds light bounce and contouring without excess warmth.

Choose toppers labeled “open-cell” or “ventilated” — these allow constant airflow and can reduce surface heat by several degrees.

3. Choose Breathable Bedding

Your bedding plays a major role in how hot or cool you sleep. The materials you choose can influence nearly half of your overall sleep surface temperature. 

How to Choose Breathable Bedding for a Cooler Sleep?

Switching to breathable, moisture-wicking fabrics helps your body release heat instead of trapping it against the mattress.

Cotton Percale Sheets

• Crisp, lightweight, and naturally breathable.
• The percale weave allows constant airflow, keeping your body cooler through the night.
• Ideal for hot climates and people prone to night sweats.

Bamboo or Tencel Sheets

• Excellent for moisture-wicking and softness.
• Bamboo and Tencel fabrics draw sweat away from your skin and dry quickly.
• Naturally hypoallergenic and temperature-balancing, making them great for year-round use.

Linen Bedding

• One of the most breathable natural fibers available.
• Linen regulates heat in both warm and cool conditions.
• Becomes softer over time while maintaining its cooling effect.

Avoid microfiber or polyester blends—they trap heat, restrict airflow, and can worsen night sweats.

Pairing breathable bedding with a gel or copper topper creates a complete cooling system for your memory foam mattress, helping you stay comfortable in any season.

4. Cool Down the Room

If all else fails, turn down the thermostat and make the room cooler. Research suggests that sleeping in a cold room improves the quality of your sleep.

While your mattress might be warm, the room is cool, so the two balance each other out. Where you might encounter a problem is when it’s time to get out of bed in the morning.

How to Cool Down Your Room for Better Sleep on Memory Foam?

Even the most breathable bedding can’t help if your bedroom itself feels too warm. Regulating your room temperature and airflow is one of the most effective ways to stay cool on a memory foam mattress.

Set the Ideal Bedroom Temperature

• Keep your thermostat between 60–67°F (15–19°C) for optimal sleep quality.
• Cooler air helps your body maintain its natural temperature drop during deep sleep.
• If possible, use a smart thermostat to automatically lower temps at night.

Reduce Humidity Levels

• High humidity traps heat and makes sweat evaporate more slowly.
• Use a dehumidifier or air conditioner to keep indoor humidity around 40–50%.
• In humid climates, this alone can make your bed feel 2–3°F cooler.

Use Fans to Circulate Air

• Ceiling fans or oscillating fans improve airflow around your bed.
• Point a small floor fan toward the base of your bed to push cool air underneath.
• For targeted cooling, try a bed fan system or portable AC near your sleeping area.

Block Out Heat During the Day

• Close curtains or blinds during peak sunlight hours to prevent heat buildup.
• Use thermal or blackout curtains if your room gets strong afternoon sun.
• Opening windows in the evening allows fresh air to circulate naturally.

Upgrade Your Sleep Setup

• Replace thick rugs or heavy drapes that retain heat.
• Choose light bedding colors that reflect light instead of absorbing warmth.

Keep electronics off or unplugged before bed—they generate unnecessary heat.

Read our guide on the best temperature for sleeping for more tips on how to stay cool throughout the night.

Why is Memory Foam Hot?

If you’ve got a memory foam mattress too hot to handle, there are a few things you want to know. There are reasons why this foam is so comfortable but so hot, let’s take a look.

The airy structure of the foam is there to hug out body and contour to our shape. That reason is why so many people turn to this type of mattress. Many people who deal with back or neck pain will use memory foam because it helps them sleep better.

The problem with something hugging you while you’re sleeping is that sinking into the mattress is what causes us to get so hot. The porous foam has tiny little bubbles, and when you combine them, the mattress becomes quite dense. Since the bed is so compact, it’s not breathable.

If we compare this to a box spring or innerspring mattress, there is a lot of space in the mattress for air to move around. When you sleep on an innerspring, your body heat can flow down into the bed and make its way out.

Since the mattress is dense and it only becomes denser when you lay on it, there is nowhere for that body heat to go. As a result, the mattress itself becomes hot, you become hot, and everything becomes a big sweaty mess.

However, the best mattresses available, whether memory foam or some other material, have found ways to combat sleeping hot. There are gel-infused memory mattresses and plant-based memory foam mattresses. Whatever type of bed you end up shopping for, just check to make sure the company has addressed the “sleeping hot” factor.

How it Affects your sleep?

Memory foam reacts to body heat — that’s what makes it contour to your shape and relieve pressure points. But this same property is also why it sleeps warmer than other materials.

Traditional memory foam is made of viscoelastic polyurethane with tiny closed cells that trap heat and reduce airflow. As your body warms the foam, it softens, hugs you closer, and limits ventilation.

Research shows that dense foams can hold 2–5°F more surface heat than hybrid or open-cell alternatives, disrupting deep sleep stages like REM.

If you often wake up sweaty or restless, your mattress might be absorbing rather than releasing body warmth. The good news is you can fix this with better airflow, bedding, and temperature control—without needing to replace the mattress entirely.

What About Hybrid Mattresses?

Hybrid mattresses combine memory foam with coil layers that allow steady airflow between the springs. This design lets trapped body heat escape, making hybrids naturally cooler than all-foam beds. Hybrids contain foam, but they often include springs and even gel, as well.

Gel- or copper-infused comfort layers in hybrids also conduct heat away from the surface, preventing night sweats and temperature spikes.

The gel memory foam combination works well because you get the comfort of the foam with the breathability of the gel. Hybrid mattresses lower heat retention while still cradling pressure points and preventing overheating.

Overall, hybrid mattresses are the best option for people who think memory foam sleeps too hot.

Note: Most hybrid mattresses can’t be flipped, since their cooling and support layers are arranged in a specific order.

What About Mattress Pads?

A cooling mattress pad or protector adds an extra layer of airflow between you and the foam.

Adding this will keep your cool because you’ll have a layer of protection between you and the memory foam. There are many different types of toppers with different materials.

Opt for breathable materials like cotton, bamboo, or wool blends that absorb sweat without trapping heat.

1. Wool, for example. It might seem like wool would make you hotter, but it works well in a few ways. First, wool is allergy-resistant, and it absorbs moisture. Part of the reason why memory foam gets hot is that it doesn’t absorb moisture well.
2. Cotton is naturally breathable and absorbent, allowing heat and moisture to escape through the fibers. Using a cotton mattress pad or protector improves airflow and prevents the “stuck” feeling common with foam.
3. Bamboo fibers are thermo-regulating, meaning they adjust to your body temperature. They wick away moisture faster than cotton, keeping you cooler and drier through the night.

Bamboo is also naturally antimicrobial, which helps prevent odor and bacteria buildup caused by sweat.

Some pads include gel or phase-change layers that actively pull heat away from the surface.
Regular cleaning also prevents moisture buildup that can make foam retain warmth.
This is an easy, affordable fix for sleepers who want cooler nights without replacing their mattress.

When we are hot and sweaty that moisture sits around in the foam, making us hotter and setting us up for mold and mildew buildup as well.

What about Moisture Wicking Sheets?

Another great option for removing moisture comes from your sheets. Sheets play a direct role in body temperature regulation. Moisture-wicking fabrics pull sweat away from your skin so it can evaporate quickly.

Choose 100% cotton, bamboo, or Tencel sheets for best results and avoid microfiber blends that trap heat. Pair them with a light cooling comforter to maintain airflow throughout the night.

These sheets get made mainly to prevent excess moisture buildup that causes you to get hot when you sleep.

Many people use a heavy comforter that acts as an insulator. You want to keep everything cool by using a cooling mattress cover with a gel foam mattress topper. Combining all these breathable materials will help turn a hot mattress into a cool oasis.

Clean sheets frequently—residue from sweat or body oils can block their moisture-wicking ability.

How to Prevent Overheating Long-Term?

Over time, memory foam can become denser and trap more heat. Preventing overheating is about consistent maintenance and smart upgrades:

• Rotate your mattress every 3–6 months to distribute wear evenly and avoid compressed, hotter zones.
• Use a breathable foundation like a slatted or adjustable base.
• Clean your mattress cover regularly to prevent buildup that blocks airflow.
• If your mattress is 7+ years old, consider upgrading to an open-cell memory foam or hybrid design with coils for better ventilation.

These small habits not only improve cooling but can also extend your mattress’s lifespan by several years.

Seasonal and Climate-Based Cooling Tips

Even with a well-ventilated setup, your cooling needs can change with the seasons or your local climate. Making small adjustments throughout the year helps your memory foam mattress stay consistently comfortable.

Summer Cooling Tips

• Switch to lightweight sheets like cotton percale, bamboo, or linen.
• Use cooling pads or toppers to absorb excess body heat.
• Keep ceiling fans or portable fans running at low speed to circulate air.
• If possible, lower your thermostat or open windows during cooler nights.

Winter Comfort Adjustments

• Maintain airflow but add breathable warmth—a light wool or cotton blanket works best.
• Avoid heavy synthetic comforters that trap heat and moisture.
• Keep room temperatures moderate (around 65–68°F) to balance warmth and airflow.

Managing Humidity and Climate Factors

• In humid or coastal areas, use a dehumidifier to prevent moisture buildup in memory foam.
• For dry or desert climates, keep a small humidifier running to maintain comfort without overheating.
• Ensure your room stays ventilated to prevent heat pockets under or around the mattress.

Saving on a Cooling Mattress

The best way to save on a cooling mattress and accessories is to take advantage of the year’s recurring mattress sales:

• Presidents Day Mattress Sales
• Memorial Day Mattress Sales
• 4th of July Mattress Sales
• Labor Day Mattress Sales
• Columbus Day Mattress Sales
• Black Friday Mattress Sales
• Cyber Monday Mattress Sales

Frequently Asked Questions

How does a cooling mattress pad work?

Cooling mattress pads contain materials that help them absorb heat. These absorbent cooling pads regulate your temperature and ensure that you don’t sweat throughout the night. Sometimes the mattress pads are made using gel while others time they can have moisture-wicking components like cotton. Either way, hot sleepers are looking for the most cooling properties possible.

How can I cool my room down quickly?

One of the best ways to cool your room down is by turning down the thermostat. If you’re worried about your memory foam mattress sleeping too hot, you want to cool the temperature of the entire room so you can sleep comfortably. We understand that not everyone has the same comfort levels, so the other person in the room with you might be freezing. If that’s the case, we would suggest using fans to cool yourself down, so the other person in bed with you doesn’t have to feel uncomfortable.

What sleeping position is the coolest?

The answer to this question definitely depends on factors such as your weight and body type. However, due to its restricting airflow, stomach sleeping is probably the warmest and the worst position for you. Back sleeping is cool– for half of your body. Side sleeping is ideal but can cause some heat to rise in your thighs.

Generally, based on health and the amount of your body coming into contact with the mattress, we’d recommend side sleeping as the coolest sleeping position.

If you’re looking for guides based on sleeping positions, check out our comprehensive shopping guides on the best mattress for side sleepers and the best mattress for back sleepers.

Can a cooling topper really lower the temperature on a memory foam mattress?

Yes, a cooling topper can significantly reduce surface heat on memory foam mattresses. Materials like gel, graphite, or copper help draw warmth away from your body and spread it evenly across the surface. Open-cell and ventilated toppers also improve airflow, which helps prevent heat buildup and keeps the mattress 2–4°F cooler throughout the night.

How often should I rotate my memory foam mattress to reduce heat retention?

It’s best to rotate your memory foam mattress every three to six months. Regular rotation prevents certain areas from becoming overly compressed, which can trap more heat over time. Turning the mattress also promotes even wear, maintains consistent airflow through the foam layers, and keeps your sleeping surface cooler and more comfortable in the long term.

Are active mattress cooling systems effective for hot sleepers?

Yes, active cooling systems such as water-cooled pads, air-circulating fans, or temperature-controlled bed units are highly effective for hot sleepers. These systems actively move heat away from your body, keeping surface temperatures stable through the night. Although more expensive than passive options, they can provide consistent cooling relief—especially in warm or humid climates where standard methods fall short.

Will using a cooling pillow help lower mattress heat?

A cooling pillow won’t directly cool your mattress, but it helps regulate your overall body temperature. By drawing heat away from your head and neck, cooling pillows reduce thermal buildup around the upper part of your bed. This creates a more balanced sleep environment and helps your mattress retain less heat in the areas closest to your body.

What is the ideal bedroom humidity level for staying cool on memory foam?

The optimal humidity level for cool, comfortable sleep is around 40–50%. High humidity prevents sweat from evaporating and makes you feel hotter, while low humidity can dry out the air. Using a dehumidifier in damp climates—or a humidifier in dry ones—helps your body cool naturally and improves the breathability of your memory foam mattress.

Conclusion

If you’re currently dealing with a memory foam mattress that is too hot, you’re not alone.

Use the tips and tricks outlined above to help cool down your nights and ensure you get a good night’s sleep.

If your memory foam mattress feels too hot, you’re not alone.

While memory foam offers excellent comfort and support, its dense structure can trap body heat and lead to warmer nights. This can make it difficult to stay asleep, especially during the warmer months.

The good news is you can keep cool on your memory foam mattress by improving airflow, using breathable bedding, and maintaining an optimal room temperature.

With the right adjustments and a few cooling upgrades, you can sleep comfortably through the night and enjoy all the benefits of memory foam—without the heat.