This post is brought to you in paid partnership with Sleep Number.
Getting comfortable at bedtime is one thing, but staying that way all night can be tough if you tend to sleep warm. Waking up hot interrupts your rest, leaving you tossing and turning and feeling tired the next day. Feeling that a good night’s sleep is out of reach can be frustrating. The right mattress can help manage your sleeping temperature and make it easier to stay comfortable throughout the night.
Of course, there’s no such thing as the perfect mattress. With so many brands promising cool, comfortable sleep, you can be forgiven for being a little confused about what actually matters.
Choosing the right cooling mattress comes down to understanding how different materials manage heat, whether you prefer foam or hybrid construction, and how much control you want over your sleeping temperature. Some mattresses rely on breathable fabrics and airflow, while others use technology that actively regulates temperature.
What should you look for when choosing a cooling mattress?
Not all cooling mattresses work in the same way. Some are designed to prevent heat from building up around your body, while others actively move heat away from the sleeping surface.
If you regularly wake up feeling too warm, start by thinking about when you notice the problem. Do you feel hot as soon as you get into bed, or do you wake up uncomfortable several hours later? Does your sleeping temperature change throughout the night?
These questions can help you decide which cooling features are worth considering.
Active cooling vs. passive cooling
One of the biggest differences between cooling mattresses is how they manage temperature.
Passive cooling mattresses use breathable fabrics, cooling foam, latex, and ventilated coil systems to help heat escape. Some incorporate phase-change materials designed to absorb and release heat as temperatures fluctuate.
Active cooling mattresses take a different approach by using technology to regulate the sleeping temperature directly. Depending on the design, these systems may circulate air or use other temperature-management technology to cool the sleeping surface.
Neither approach is automatically right for everyone. If you tend to sleep at a consistent temperature, breathable materials may provide the comfort you’re looking for. If your temperature preferences change throughout the night, an actively cooled mattress may offer more flexibility.
Does mattress construction affect how hot you sleep?
The materials inside a mattress can influence how much heat builds up around your body.
Traditional memory foam is known for its close contouring and pressure relief, but some designs can retain heat because the material surrounds more of your body. Newer foam mattresses may incorporate cooling covers, gel-infused materials, or ventilation features to help address this.
Hybrid mattresses combine foam or latex comfort layers with a coil support system. The open spaces around the coils allow air to circulate through the mattress, which can help with temperature management.
Latex is another material worth considering. Its responsive feel and breathable construction may appeal to sleepers who prefer less of the deep-sinking sensation associated with memory foam.
Ultimately, construction is only part of the equation. The mattress cover, comfort layers, and temperature-management features all contribute to how cool or warm a bed feels.
How important are firmness and pressure relief?
Temperature control matters, but a mattress still needs to feel comfortable and provide the right level of support.
A softer mattress generally allows your shoulders and hips to sink farther into the comfort layers. This can provide cushioning for side sleepers, although some people may find that a deeply contouring surface feels warmer.
A firmer mattress creates more resistance and may appeal to sleepers who prefer to rest closer to the surface rather than sinking into it.
Your sleeping position also plays a role. Side sleepers often need additional cushioning around their shoulders and hips, while back and stomach sleepers may prefer more support through the midsection.
No single firmness level works for everyone. The goal is to find a mattress that balances pressure relief, support, and temperature management without forcing you to compromise on comfort.
Can couples have different sleeping temperature preferences?
Sharing a bed can make temperature regulation more complicated, particularly when one person sleeps warm and the other prefers a cozier environment.
Traditional cooling mattresses generally use the same materials across the entire sleeping surface. While those materials may help manage heat, they don’t necessarily accommodate two different temperature preferences.
Some active cooling mattresses offer independent temperature settings for each side of the bed. This allows one person to choose a cooler sleeping environment without requiring their partner to use the same setting.
It’s also worth considering firmness preferences. If one partner likes a softer mattress and the other wants something firmer, independent comfort adjustments can make a shared bed more accommodating.
For couples with different sleeping habits, having control over both temperature and firmness may be particularly useful.
How does Sleep Number ClimateCool approach temperature control?
As part of the Sleep Number Climate collection, the Sleep Number ClimateCool takes an active approach to temperature control rather than just relying on the passive cooling of breathable fabrics. It combines active cooling with personalized comfort to help manage sleeping temperature throughout the night.
A key advantage is that you can adjust firmness and temperature separately on each side of the bed. This helps couples with different sleep habits or temperature preferences. Instead of compromising, each person can set their side the way they like.
Beyond temperature control, the ClimateCool tracks key sleep metrics, including how long you sleep, how well you sleep, and your breathing rate, via the Sleep Number app. That information is available in the app so you can review your sleep and make any necessary changes to your routine.
Sleep Number also reports positive sleep experiences among its smart bed users. According to the company, 94% of smart sleepers say they sleep better, and on average they get 28 more minutes of restful sleep. Additionally, Sleep Number reports that 8 out of 10 experience fewer aches and pains, while 92% report less back pain. These are company-reported findings, and individual experiences may vary.
What makes the ClimateCool different from a traditional cooling mattress is the level of control it provides. Most cooling beds rely on passive materials to manage heat, while Sleep Number allows you to adjust the temperature yourself.
If your comfort needs change with the seasons or you’re prone to temperature fluctuations at night, this type of personalized temperature management may be worth considering.
For shoppers exploring the ClimateCool during the holiday season, Sleep Number is offering 25% off through December 7, 2026. Free Premium delivery on ClimateCool is only valid 11/10 – 11/16 and 11/24 – 12/7.
Can your bedding and bedroom temperature affect mattress cooling?
Even a mattress with dedicated cooling features is only one part of your sleep environment.
Your sheets, comforter, mattress protector, and bedroom temperature can all influence how warm you feel during the night.
Breathable bedding may help prevent excess heat from building up around your body. Lightweight comforters and moisture-wicking fabrics can also make a difference, particularly during warmer months.
A thick mattress topper or protector may change how closely you experience the cooling materials built into your mattress. It’s worth checking whether your bedding is compatible with the mattress’s temperature-management features.
Room ventilation matters, too. Fans, air conditioning, and seasonal temperature changes can all affect your sleeping environment.
If you’re considering a new cooling mattress, think about how these factors work together rather than expecting the mattress to manage every source of heat on its own.
How do you know which cooling mattress is right for you?
When all is said and done, choosing the right bed comes down to your personal sleep style, whether that means prioritizing pressure relief, foam contouring, hybrid airflow, or adjustable temperature control.
Start by identifying what makes you uncomfortable at night. If you prefer a traditional mattress and mainly want better breathability, cooling materials and ventilated construction may be enough.
If you regularly experience temperature fluctuations or share a bed with someone who has different preferences, an active cooling mattress may provide additional flexibility.
The Sleep Number ClimateCool is one example of this approach, combining active temperature management with separate firmness controls and built-in sleep tracking.
Before making a decision, also review the mattress’s trial period, warranty, maintenance requirements, and compatibility with your existing bed setup.
The right cooling mattress should help you create a more comfortable sleeping environment while still providing the cushioning and support you need.
Frequently asked questions about choosing a cooling mattress
What type of mattress is good for hot sleepers?
Hot sleepers may benefit from mattresses with breathable materials, cooling covers, ventilated construction, or active temperature-management features. Hybrid mattresses often allow more airflow through their coil systems, while some foam mattresses incorporate specialized cooling materials. The right choice depends on your comfort preferences and how much temperature control you need.
Do cooling mattresses actually work?
Cooling mattresses use different methods to help manage heat, including airflow, phase-change materials, breathable fabrics, and active temperature regulation. Their effectiveness depends on the mattress design, your bedding, bedroom temperature, and individual sleeping habits. Cooling features may improve comfort, but they don’t guarantee that you’ll never feel warm during the night.
Is memory foam or a hybrid mattress cooler?
Hybrid mattresses often provide more airflow because their coil systems create open spaces inside the mattress. Traditional memory foam can retain more heat, although newer designs may incorporate cooling materials and ventilation features. The specific construction matters more than the mattress category alone.
What is the difference between active and passive mattress cooling?
Passive cooling relies on materials and construction to help manage heat, while active cooling uses technology to regulate temperature more directly. The Sleep Number ClimateCool, for example, allows sleepers to adjust temperature settings independently on each side of the bed.
Can couples choose different sleeping temperatures on the same mattress?
Certain mattresses with active temperature control allow each partner to personalize their side. The Sleep Number ClimateCool offers separate temperature and firmness adjustments, which can be useful when two people have different sleeping preferences.
Can a cooling mattress help with night sweats?
A cooling mattress may help make the sleeping surface more comfortable, but it won’t necessarily prevent night sweats. Night sweats can have several causes, including environmental conditions, medications, and underlying health issues. If they are frequent, severe, or unexplained, it’s worth discussing them with a healthcare professional.
Are cooling mattresses worth the extra cost?
That depends on how much temperature affects your sleep and which features you’ll use. If you frequently wake up feeling too warm, advanced cooling materials or adjustable temperature settings may be worth considering. However, breathable bedding and a cooler bedroom can also improve comfort without requiring a new mattress.
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