The Best Mattress for Hot Sleepers: Stay Cool and Sleep Better

Do You Overheat at Night?

Waking up drenched in sweat, tossing and turning to find a cool spot—if this sounds familiar, you're not alone. Many people struggle with overheating at night, often referred to as "hot sleeping." While warm weather can play a role, it's not the only factor that causes night sweats and discomfort. The right mattress can make a huge difference in regulating body temperature and improving sleep quality. Let’s take a closer look at what makes someone a hot sleeper and how to choose the best mattress to keep cool.

What is a Hot Sleeper?

A hot sleeper is someone who frequently feels too warm during sleep, often waking up sweaty and uncomfortable. This can happen regardless of room temperature or weather conditions.

If you regularly experience overheating at night, it’s important to identify potential causes and consider changes that can help, including choosing the right mattress designed to dissipate heat.

Why Do Some People Sleep Hot?

Physiological Factors

• Hormonal changes – Menopause, pregnancy, and hormonal imbalances can cause night sweats.
• Anxiety and stress – High stress levels can trigger an increase in body temperature at night.
• Certain medications – Some antidepressants, steroids, and painkillers list night sweats as a side effect.
• Blood sugar fluctuations – People with hypoglycemia may experience night sweats due to dips in blood sugar.
• Illness or fever – Infections or other medical conditions can raise body temperature during sleep.
• Nightmares – Vivid or distressing dreams can cause sweating and overheating.

Environmental Factors

• Room temperature – Keeping blinds and curtains closed during the day can prevent heat buildup, especially in summer. Opening a window at night can also improve airflow, but if you have allergies, an air purifier or fan might be a better option.
• Sleepwear – Thick or synthetic materials trap heat. Opt for lightweight, breathable fabrics like cotton or bamboo.
• Bedding – Heavy duvets and excessive layers can cause overheating. Choosing a duvet with an appropriate tog rating (such as 4.5 for summer and 10.5 for year-round use) can help regulate warmth.
• Mattress materials – Some mattresses retain heat more than others, making it crucial to pick one that promotes airflow and temperature regulation.

Choosing the Best Mattress for Hot Sleepers

The mattress you sleep on plays a big role in heat retention. If your mattress traps body heat, it can make sleeping even more uncomfortable. The best mattress for hot sleepers should allow airflow, wick away moisture, and release excess heat.

Key Features to Look For

• Breathable materials – Mattresses with open-cell foam, gel-infused memory foam, or latex promote airflow and help regulate temperature.
• Gel or phase-change technology – Gel-infused layers absorb and dissipate heat, preventing it from building up.
• Pocket sprung design – Traditional pocket-sprung mattresses allow better airflow compared to solid memory foam.
• Moisture-wicking covers – Some mattresses come with cooling fabric covers designed to keep the surface feeling fresh and dry.

Recommended Mattresses for Hot Sleepers

1. DFI Rejuvenate Mattress

• Features 3000 Actimax individual pocket springs for advanced support.
• Uses Revolutionary HD GelG5-infused foam to provide a soft, breathable top layer.
• Gel technology helps regulate temperature, preventing overheating.
• Five-layer construction ensures durability and comfort.

2. DFI Gelflex 3000 Mattress

• 12" deep hybrid mattress combining pocket springs and foam.
• ActiMax and Zero G micro pocket springs adapt to body contours, offering targeted support.
• G5 Comfort Gel layer delivers a cooling effect, ensuring a consistently comfortable sleep temperature.
• Ideal for all sleep positions, offering personalized comfort.

Final Thoughts

If you often wake up feeling too warm, choosing a mattress that disperses heat effectively can transform your sleep quality. Whether you opt for a gel-infused foam, breathable latex, or a pocket sprung design, selecting the right mattress can help you stay cool and comfortable all night.

Need help finding the best mattress for your sleep needs? Our Sleep Experts are available to assist—just use the chat feature on our website for personalised recommendations.