REST Evercool vs Mellowsleep: Which Cooling Comforter Actually Works?

 

How Did We Test REST Evercool and Mellowsleep Comforters?

We evaluated both brands by comparing their cooling technology, moisture-wicking performance, and material composition under real-world sleep conditions. Our testing focused on how each comforter handled heat retention during the night, breathability under different room temperatures, and durability after multiple wash cycles. We also reviewed third-party certifications, customer feedback patterns, and award histories to determine which product delivers the most consistent temperature regulation.

In our testing, the REST Evercool Cooling Comforter stood out for its instant cold-to-the-touch sensation, while the Mellowsleep CloudCool Cooling Comforter demonstrated superior long-term temperature stability through Phase Change Materials (PCM). Both products performed well in moisture wicking, but they used fundamentally different approaches to achieve that result.

What Makes a Comforter Good for Couples?

A comforter is good for couples when it accommodates different sleep temperatures without compromising comfort for either partner. Mismatched sleepers often struggle because one person prefers a warm, cozy bed while the other requires a dry, cool surface.

Materials that work best for mismatched sleepers are those that offer dual-sided designs or advanced thermal regulation. The all season comforter from Mellowsleep solves this problem by featuring two comforters zipped together, allowing each partner to choose their preferred weight and warmth level.

How Does REST Evercool Technology Compare to Mellowsleep?

The REST Evercool technology relies heavily on high-conductivity synthetic fibers to achieve its cooling effect. The Evercool Cooling Comforter features a shell made of 90% cooling nylon and 10% spandex, filled with a blend of TENCEL lyocell and Sorona fibers.

This combination creates a highly breathable, moisture-wicking surface that feels significantly cooler than standard cotton. The nylon shell has a high thermal conductivity, meaning it rapidly transfers heat away from your body the moment you touch it. In our testing, we found that this instant cool sensation is most noticeable in the first 15 minutes of use.

Why Do Some Synthetic Comforters Trap Heat?

Even high-tech synthetic comforters can trap heat if the weave is too dense or if the filling lacks proper airflow. Some polyester or microfiber comforters will wick moisture initially but eventually become saturated, leading to a clammy sleep environment.

However, the REST Evercool comforter avoids this issue by incorporating TENCEL fibers into its fill. TENCEL (derived from eucalyptus) has excellent moisture management capabilities. It pulls sweat away from the body and distributes it across the fabric surface, allowing it to evaporate quickly.

What Are the Best Mellowsleep Alternatives for Night Sweats?

Mellowsleep approaches temperature regulation through a combination of Phase Change Materials (PCM) and natural fibers like bamboo viscose. Their cooling comforter is specifically engineered for individuals who experience severe hot flashes or night sweats.

Instead of just feeling cold to the touch, PCM technology actively absorbs excess body heat when you get too warm and releases it back to you when you cool down. This creates a dynamic thermal buffer that prevents sudden temperature spikes throughout the night.

How Does the CloudCool Cooling Comforter Handle Temperature Changes?

The CloudCool Cooling Comforter uses a dual-sided design to offer versatile temperature control. One side features a silk-smooth, cool-touch fabric infused with PCM technology, providing immediate relief during a hot flash. The reverse side is a breathable knit that offers a slightly warmer, cozier feel for cooler nights.

This adaptability makes it an excellent choice for people who experience fluctuating body temperatures throughout the night. We found that the PCM side maintained a more consistent temperature range compared to the REST Evercool's nylon shell, which cooled quickly initially but gradually warmed up over several hours.

How Much Does Each Cooling Comforter Cost?

When comparing REST Evercool vs Mellowsleep, pricing plays a significant role in the decision-making process. Both brands offer premium bedding, but their price points and material compositions differ considerably.

How Much Does the REST Evercool Cooling Comforter Cost?

The REST Evercool Cooling Comforter is a 4-time Good Housekeeping Bedding Award winner. It is highly rated for its instant cool touch and lightweight feel.

Price: $149 (Sale from $199, available in Twin/Twin XL, Full/Queen, King/Cali King)

How Much Does the Mellowsleep CloudCool Cooling Comforter Cost?

The Mellowsleep CloudCool Cooling Comforter uses advanced PCM technology and a dual-sided design. It is specifically recommended for individuals who suffer from menopause night sweats.

Price: $79.99 (Twin/Twin XL, Sale from $119.99), $89.99 (Full/Queen, Sale from $139.99), $99.99 (King/Cali King, Sale from $159.99)

How Much Does the Mellowsleep Temperature Control Comforter Cost?

For couples with different temperature preferences, the Mellowsleep Temperature Control Comforter offers a unique zip-together design. It includes built-in duvet covers and features HeatLock and CoolWick layers.

Price: $108.00 (Twin/Twin XL, Sale from $179.99), $119.99 (Full/Queen, Sale from $179.99), $131.99 (King/Cali King, Sale from $199.99)

Which Brand Offers Better Moisture Wicking?

Both brands excel in moisture wicking, but they achieve it through different methods. REST Evercool relies on the natural properties of TENCEL lyocell and a specialized nylon shell to draw moisture away from the skin.

Mellowsleep utilizes bamboo viscose, which is naturally hypoallergenic and highly absorbent. The microscopic gaps in bamboo fibers allow for excellent airflow, preventing heat buildup and keeping the fabric feeling fresh.

What Materials Dry Fastest During Sleep?

Bamboo viscose is one of the best materials for hot sleepers because it dries much faster than cotton. When you sweat on a cotton comforter, the fabric absorbs the moisture but holds onto it, leaving you feeling damp and uncomfortable.

Bamboo viscose pulls the sweat away from your body and evaporates it quickly, maintaining a dry sleep surface. If you want a fluffy comforter that also regulates temperature, Mellowsleep offers options that combine plushness with advanced cooling properties. For more information on how temperature affects your sleep cycle, read our guide on best comforters for night sweats.

How Should You Care for Cooling Comforters?

Proper care is essential to maintain the cooling properties of your comforter. Both REST and Mellowsleep comforters require specific washing instructions to preserve their specialized fibers.

Can You Machine Wash a REST Evercool Comforter?

The REST Evercool Cooling Comforter is machine washable. You should wash it in cold water on a gentle cycle. It is safe to tumble dry on low heat. Avoid using bleach or fabric softeners, as these chemicals can coat the cooling fibers and reduce their effectiveness.

How Do You Wash a Mellowsleep Cooling Comforter?

Mellowsleep comforters are also designed to be machine washable. Wash them in cold water to protect the Phase Change Materials and bamboo viscose. Tumble dry on low heat or lay flat to dry. Always check the specific care label on your product before washing. For a complete guide on maintaining your bedding, check out our best material for comforters guide.

How Does Room Temperature Affect Sleep Quality?

Room temperature is a crucial factor in sleep quality, regardless of the bedding you use. The National Sleep Foundation recommends keeping your bedroom between 60 and 67 degrees Fahrenheit.

If your room is too hot, even the best cooling comforter will struggle to keep you comfortable. High room temperatures increase your core body temperature, making it difficult to enter deep sleep stages.

How Can You Optimize Your Bedroom for Better Sleep?

To maximize the benefits of your cooling comforter, use a fan or air conditioning to maintain a cool room temperature. Ensure your mattress also promotes airflow. If your mattress traps heat, consider adding a mattress topper designed for cooling. For seasonal tips on staying cool, read our guide on best cooling comforter options.

How Do REST Evercool and Mellowsleep Compare Side by Side?

What Questions Do People Ask About Cooling Comforters?

Is REST Evercool Better Than Mellowsleep?

The choice between REST Evercool and Mellowsleep depends on your specific sleep needs. REST Evercool provides an instant cold-to-the-touch sensation due to its high-conductivity nylon shell, which is ideal for people who overheat quickly. Mellowsleep offers active temperature regulation through Phase Change Materials, which is often more effective for individuals experiencing severe hot flashes or night sweats that last throughout the night.

Do Cooling Comforters Actually Work for Menopause?

Cooling comforters are highly effective for managing menopause symptoms. Materials like PCM and bamboo viscose absorb excess heat and wick away sweat, preventing the discomfort and sleep disruption caused by hot flashes. The cooling comforter from Mellowsleep is specifically designed with menopause in mind, using dual-sided PCM technology to handle both sudden temperature spikes and the chill that often follows.

Can You Wash a REST Evercool Comforter?

The REST Evercool comforter is machine washable in cold water on a gentle cycle. It should be tumble dried on low heat to preserve its cooling properties. Avoid bleach and fabric softeners. For long-term care tips, see our comforter care guide.

Should You Pair a Cooling Comforter With Cooling Sheets?

Yes, pairing a cooling comforter with breathable sheets creates a complete cooling sleep system. Sheets made from percale cotton or bamboo viscose allow air to circulate around your body while the comforter manages the bulk of your body heat. The best bed sheets for hot sleepers are designed with this in mind, featuring moisture-wicking fibers that work alongside your comforter.

Conclusion

Choosing the right cooling comforter comes down to whether you need instant relief or sustained temperature regulation. REST Evercool delivers a powerful cold-to-the-touch experience thanks to its proprietary nylon shell, while Mellowsleep's Phase Change Material technology provides dynamic heat absorption that lasts all night.

If you struggle with sudden temperature spikes and night sweats, the Mellowsleep cooling comforter provides advanced PCM technology to keep you dry and comfortable through every hot flash. For a broader overview of cooling options, explore our best cooling comforter guide.

To build a complete cooling sleep system, consider adding cooling pillowcases and breathable sheets to your setup. For more tips on managing sleep temperature, check out our article on temperature regulating comforter technology.