Best Cooling Mattress (2026): Sleep Number ClimateCool Named a Top Choice for Personalized Active Cooling by Expert Consumers

NEW YORK, Oct. 16, 2026 /PRNewswire/ -- Expert Consumers has named Sleep Number ClimateCool a top choice in a new review of the best cooling mattress options, highlighting its ability to actively remove heat, let each sleeper choose a preferred cooling level, and adjust firmness for more personalized comfort.

The recognition comes as cooling mattresses move beyond fabrics and foams that simply feel cool at first touch. For sleepers who tend to wake up warm during the night, active cooling can help manage heat for longer instead of relying only on materials at the mattress surface.

Best Cooling Mattress:

• Sleep Number ClimateCool - a 12-inch mattress that uses airflow to pull heat away from the body while giving sleepers control over cooling and firmness on each side of the bed.

Sleep Number is a sleep wellness company known for mattresses that can adjust to different comfort preferences. Its mattresses combine customizable firmness, temperature features, automatic comfort adjustments, and connected sleep technology designed to make the bed feel more personal to each sleeper.

How ClimateCool Helps Hot Sleepers Stay Comfortable

Many cooling mattresses use breathable covers, cooling foams, or other materials that help reduce heat buildup. These features can make the bed feel cooler, but they do not actively keep removing heat as the night goes on.

ClimateCool takes a more active approach. Air moves through the bed to carry excess warmth away from the body, while cooling materials help keep the sleep surface comfortable.

According to Expert Consumers, ClimateCool provides up to 15 degrees of active cooling on each side.

Key cooling features include:

• Active airflow that helps move heat away from the sleeper
• Cooling gel layers that help absorb and release excess warmth
• Breathable materials that allow air to move through the mattress
• Separate cooling controls so each side can be set differently
• SmartTemp settings that let cooling change automatically during the night

For sleepers who often feel comfortable at bedtime but wake up hot several hours later, ongoing cooling is one of the main reasons ClimateCool stands out in the Expert Consumers review.

How Sleepers Can Choose When and How Much Cooling They Want

Cooling needs can change throughout the night. Some sleepers may want steady cooling from bedtime until morning, while others may mainly need relief during the warmest part of the night.

ClimateCool offers several SmartTemp program options through the Sleep Number app.

'All Night Cooling' keeps cooling active throughout the sleep period. 'Deep Sleep Cooling' focuses cooling during the middle of the night. Custom settings allow the timing and cooling level to be adjusted around an individual sleep schedule.

Cooling can also be changed manually when needed.

For couples, each person can choose a different cooling level on their side of the mattress. One sleeper can keep a side cooler without requiring the other side to use the same setting.

Sleep Number recommends keeping the bedroom at about 68 degrees Fahrenheit or cooler for the Climate Series to work at its best. The mattress is designed to cool the area directly around the sleeper rather than replace room air conditioning.

How Adjustable Firmness Adds Another Layer of Comfort

Cooling is only one part of mattress comfort. A bed can feel cool enough but still be uncomfortable if it feels too soft or too firm.

ClimateCool also lets sleepers adjust how firm the mattress feels.

For queen sizes and larger, each person can make their side of the bed firmer or softer, allowing both sleepers to choose the level of support that feels best without changing the other side.

Cooling and firmness are controlled separately. A sleeper can make the bed cooler without making it firmer, or change the firmness without affecting the cooling setting.

ClimateCool also includes Responsive Air technology, which can make small firmness adjustments as sleeping positions change during the night. In practical terms, the bed can respond when pressure shifts instead of requiring the sleeper to make every adjustment manually.

Together, these features allow temperature and firmness to be adjusted around different sleep preferences.

Who May Get the Most Value From ClimateCool

Expert Consumers' review points to ClimateCool as an option for shoppers who want more control over both temperature and comfort.

The mattress may be particularly relevant for:

• Hot sleepers who regularly wake up feeling too warm
• Sleepers who want cooling that continues through the night
• Couples with different temperature preferences
• Couples who prefer different firmness levels
• Sleepers who want cooling to change automatically on a schedule
• Shoppers who want both temperature control and adjustable support in one mattress

Each feature addresses a specific sleep concern. Cooling helps manage nighttime heat, adjustable firmness gives each sleeper greater control over comfort, and automatic settings reduce the need to make repeated changes during the night.

Why Expert Consumers Named ClimateCool a Top Cooling Mattress Choice

For shoppers asking what makes Sleep Number ClimateCool stand out among cooling mattresses, the clearest difference is that it actively removes heat instead of relying only on cooling materials.

Expert Consumers also highlights the level of control available to the sleeper. Cooling can be changed by side, firmness can be adjusted separately, and SmartTemp settings can change how the mattress cools at different points in the night.

This gives sleepers more flexibility to set temperature and firmness around individual preferences rather than using one setting across the entire bed.

A 100-night mattress trial also gives buyers time to try different cooling and firmness settings at home and determine which combination feels most comfortable under normal sleeping conditions.

For consumers comparing cooling mattress options, ClimateCool addresses an important distinction: whether a mattress should simply feel cool when getting into bed or continue helping manage heat as the night progresses.

Expert Consumers recognized Sleep Number ClimateCool for combining active heat removal with adjustable comfort and personalized temperature settings.

The full review can be read at the Expert Consumers website.

About Sleep Number Corporation

Sleep Number^® is the leader in personalized sleep wellness. With adjustable firmness, pressure-relieving support and temperature balancing comfort built into every mattress, Sleep Number beds adapt to customers' changing needs, night after night, year after year. Backed by almost 40 years of innovation, 1,000+ patents and patents pending, and billions of hours of sleep data, Sleep Number has helped more than 16 million people achieve their best sleep.

Sleep Number mattresses, bases, bedding, and furniture are available at its stores nationwide and at SleepNumber.com.

About ExpertConsumers.org: Expert Consumers delivers news and insights on consumer products and services. As an affiliate, Expert Consumers may earn commissions from sales generated using links provided.

SOURCE ExpertConsumers.org