SweetNight CoolNest Mattress

The SweetNight COOLNEST Mattress is designed to deliver a refreshing sleep experience with advanced cooling technology and ergonomic support. Engineered with a unique combination of GelFlu™ High Resilience Foam and a 3D-Woven CoolNest Cover, this mattress stays up to 8°F cooler than conventional options, making it an appealing choice for hot sleepers. The COOLNEST also features a five-zone ergonomic support system that targets pressure points for optimal spinal alignment and pain relief.
PERIOD
RANGE
Ideal for hot sleepers who would like to stay cool at night.
Ideal for people looking for back and spine pain relief.
Ideal for lightweight, average weight, and heavyweight side sleepers.
Ideal for sleepers who shift position often while sleeping.
Offers excellent motion isolation and other features with couples in mind.
Ideal for people looking for the best option on a limited budget.
SweetNight CoolNest Mattress
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SweetNight is a well-established brand known for its commitment to enhancing sleep quality through innovative mattress designs and eco-friendly materials. The company focuses on providing a balanced blend of comfort, support, and affordability, catering to a diverse range of sleepers. SweetNight is dedicated to customer satisfaction, offering free delivery, stress-free financing, and a good warranty, ensuring a worry-free shopping experience.
The SweetNight COOLNEST Mattress is a hybrid mattress designed to provide balanced comfort and support through its combination of gel-infused memory foam and a 5-zone support system. It offers a medium feel suitable for a variety of sleeping positions while ensuring effective cooling and pressure relief.
In this review, we will explore the SweetNight COOLNEST in depth, examining:
- Pros and cons
- Unboxing experience
- Feel and comfort
- Construction and design
- Performance test results
- Warranty policies, company policies, and all relevant FAQs
Note: We’re reviewing the 12” version of the mattress; however, it’s also available in 14” and 16”.
SweetNight COOLNEST Overview
Pros
- Advanced Cooling Technology: The COOLNEST Mattress features GelFlu™ High Resilience Foam infused with Phase Change Material (PCM) and a 3D-Woven CoolNest Cover. This combination effectively dissipates heat and regulates body temperature, making the mattress feel up to 8°F cooler than traditional foam mattresses. Hot sleepers will appreciate the consistent airflow and cool-to-the-touch sensation.
- 5-Zone Ergonomic Support: The mattress is designed with a 5-zone ergonomic support system, which includes tailored comfort zones for the head, shoulders, lower back, hips, and legs. This design promotes optimal spinal alignment, reduces pressure on sensitive areas, and enhances overall sleep comfort for side, back, and stomach sleepers.
- Excellent Motion Isolation: Thanks to its multi-layer foam structure, the COOLNEST effectively minimizes motion transfer, making it a suitable choice for couples and light sleepers. The GelFlu™ foam absorbs movements efficiently, ensuring an undisturbed sleep experience even with a restless partner.
- Versatile Thickness Options: Available in 12", 14", and 16" thicknesses, the COOLNEST accommodates various comfort preferences and sleeping styles. The thicker models provide enhanced support and pressure relief, making it a versatile choice for different body types.
- High-Quality Materials and Certifications: The mattress uses CertiPUR-US certified foams and OEKO-TEX certified fabrics, ensuring it is free from harmful chemicals. SweetNight’s commitment to safety and quality is backed by a 10-year warranty, providing peace of mind to customers.
Cons
- Longer Expansion Time: During unboxing, the mattress requires up to 72 hours to fully expand and off-gas. This can be inconvenient for those needing immediate use or sensitive to the mild, temporary odor typical of new foam mattresses.
Who we Recommend the SweetNight COOLNEST for
- Hot Sleepers: The SweetNight COOLNEST Mattress is designed with gel-infused memory foam and a breathable CoolNestTM Cover, which effectively dissipates body heat, ensuring a cooler sleeping surface. This benefit makes it ideal for hot sleepers who often experience night sweats or discomfort from heat retention. The hybrid construction with individually wrapped coils promotes airflow throughout the mattress, enhancing ventilation and maintaining a consistently cool environment.
- Side and Combination Sleepers: With its medium feel and responsive foam layers, the COOLNEST Mattress provides a balanced contour that adapts to different sleeping positions. Side sleepers benefit from pressure relief on their hips and shoulders, while combination sleepers can easily switch positions without feeling stuck. The responsive GelFluTM High Resilience Foam ensures a comfortable, adaptive experience for those who move frequently during the night.
- Back Pain Sufferers and Support: The 5-Zone Support Foam is engineered to target specific areas of the body, including the lower back, ensuring proper spinal alignment and reducing pain. This zoning technology distributes weight evenly, minimizing pressure points and alleviating discomfort for back pain sufferers. Additionally, the mattress offers balanced lumbar support to maintain a healthy posture throughout the night.
- Couples and Families: Motion isolation is a standout feature of the COOLNEST Mattress, thanks to its individually wrapped coils and multiple foam layers that absorb movement. This feature ensures minimal disturbance from a partner's movements, making it a great choice for couples or those who share a bed with restless sleepers. Its reinforced edge support also maximizes usable sleeping space, accommodating families who co-sleep.
- Budget-Minded Shoppers: Offering a competitive price range of $389 to $699, the SweetNight COOLNEST Mattress delivers quality and advanced features at an affordable cost. Its durable construction and 10-year warranty provide long-term value, making it a cost-effective investment for budget-conscious buyers. The mattress also includes a 100-night sleep trial, allowing customers to test its comfort and support risk-free.
Unboxing the SweetNight COOLNEST
The SweetNight COOLNEST mattress arrives compressed and vacuum-sealed in a compact box for convenient shipping and setup. Upon delivery, the box is easy to maneuver, fitting through narrow hallways and staircases without hassle. Once in the desired room, the unboxing process is straightforward. We started by carefully cutting open the outer plastic layer, which allowed the mattress to begin expanding instantly.
As we unrolled the mattress onto the bed frame, it rapidly took shape. However, it took approximately 72 hours for the COOLNEST to fully expand to its intended height, ensuring optimal performance and comfort. During this time, we noticed a mild off-gassing odor, which is typical of memory foam mattresses. The smell dissipated within a day, especially when the room was well ventilated.
The mattress was cool to the touch right out of the box, a noticeable feature of the CoolNest Cover and GelFlu™ foam. This immediate cooling sensation showcased the mattress’s innovative temperature regulation technology. The fabric was soft yet durable, indicating high-quality construction.
The setup was manageable for one person but easier with two due to the mattress's weight, particularly for the thicker 14" and 16" models. The entire unboxing and setup process was seamless, requiring minimal effort and no special tools.
Overall, the unboxing experience was positive, reflecting SweetNight's attention to detail and user convenience.
Firmness, Feel and Comfort For SweetNight COOLNEST
SweetNight COOLNEST Firmness
The SweetNight COOLNEST Mattress features a medium firmness ranking approximately 5/10 on the firmness level charts, which strikes a balance between support and comfort. This firmness suits a wide range of sleepers, including side, back, and combination sleepers. It provides sufficient support to maintain spinal alignment while offering enough cushioning to relieve pressure on the shoulders and hips.
Although the medium firmness is versatile, it may not be ideal for those seeking an ultra-soft or extra-firm mattress. However, the balanced support and pressure relief make it suitable for most sleepers, including couples with different firmness preferences.
SweetNight COOLNEST Feel
Upon first contact, the surface feels plush and inviting, providing a gentle cushioning sensation. As you settle in, the mattress gradually contours to your body, distributing weight evenly without causing excessive sinkage. The GelFlu™ High Resilience Foam responds swiftly to pressure, ensuring that changing positions is effortless and fluid.
Unlike traditional memory foam, the COOLNEST doesn’t leave you feeling trapped, thanks to its responsive and buoyant nature. The mattress maintains a supportive underlayer that keeps your spine aligned, reducing pressure on your lower back and shoulders. Side sleepers will appreciate the gentle cradling around their hips and shoulders, while back and stomach sleepers receive adequate lumbar support. The mattress also isolates motion well, minimizing disturbances from a partner’s movements during the night.
Overall, the feel is adaptable and comfortable, accommodating various sleeping positions without compromising on support. It strikes a pleasant balance between cushioning and firmness, making it versatile for most sleepers.
SweetNight COOLNEST Comfort
The SweetNight COOLNEST Mattress underwent a detailed comfort test with a diverse group of sleepers, including back, side, and stomach sleepers of various weights. The comfort was evaluated based on pressure relief, body contouring, and overall sleep quality.
The COOLNEST performed exceptionally well for side sleepers, offering effective pressure relief on the shoulders and hips. Back sleepers appreciated the balanced support that maintained spinal alignment, while stomach sleepers found adequate support, though heavier individuals experienced slight sinkage.
The mattress provided consistent comfort across different sleeping positions, confirming its versatility and suitability for combination sleepers. The comfort test demonstrated that the COOLNEST delivers reliable pressure relief, body contouring, and overall sleep quality, making it a well-rounded choice for most sleepers.
These are the results of our testing:
Sleeper Weight | Back Sleepers | Side Sleepers | Stomach Sleepers |
---|---|---|---|
Lightweight (Under 150 lb) | Very Good | Excellent | Good |
Average (150 – 250 lb) | Excellent | Very Good | Good |
Above Average (Over 250 lb) | Good | Good | Good |
Constructions, Materials, and Design
Materials and Design
The SweetNight COOLNEST Mattress is crafted with a focus on comfort, durability, and temperature regulation. It features a multi-layer foam structure designed to provide targeted support and pressure relief. The outer cover is made from a 3D-Woven CoolNest fabric, which enhances breathability and wicks away moisture to maintain a cool and dry sleeping surface.
The mattress uses eco-friendly and hypoallergenic materials, certified by CertiPUR-US and OEKO-TEX standards, ensuring it is free from harmful chemicals. Its thoughtful design emphasizes both comfort and health, creating a safe and supportive sleep environment for users.
Layers
- 3D-Woven CoolNest Cover: The topmost layer is crafted from a premium 3D-Woven CoolNest fabric designed to enhance airflow and maintain a cool sleeping surface. This breathable cover efficiently wicks away moisture, reducing humidity and heat buildup during the night. Its soft and smooth texture adds a luxurious feel to the mattress, ensuring a comfortable first point of contact. Additionally, the cover is hypoallergenic and resistant to dust mites, promoting a clean and healthy sleep environment.
- GelFlu™ High Resilience Foam: Beneath the cover lies the GelFlu™ High Resilience Foam, engineered for optimal temperature regulation and responsive support. This layer is infused with cooling gel particles that actively dissipate body heat, maintaining a comfortable temperature throughout the night. Its resilient structure adapts quickly to body movements, ensuring a responsive and supportive feel without trapping heat. The foam also provides gentle contouring, offering pressure relief at key areas like the shoulders, hips, and back.
- Gel-Infused Memory Foam: The next layer features Gel-Infused Memory Foam, designed to balance contouring comfort and temperature regulation. This layer molds closely to the body, providing a cradling sensation that alleviates pressure points. The gel infusion helps to draw heat away from the body, maintaining a cooler sleeping surface. Its responsive nature prevents excessive sinkage, ensuring that spinal alignment is maintained for various sleeping positions.
- Ocean Memory Foam: Following the gel layer is the Ocean Memory Foam, a unique material inspired by oceanic cooling properties for enhanced temperature control. This foam adapts to body weight and movements, delivering a balanced level of contouring and support. It provides a refreshing, buoyant feel while promoting proper spinal alignment. The innovative design enhances airflow, preventing overheating and maintaining a consistently cool and comfortable sleeping environment.
- Transition Comfort Foam: The Transition Comfort Foam acts as a supportive bridge between the contouring memory foam layers and the firmer support base. This layer evenly distributes body weight, minimizing pressure buildup and reducing motion transfer. It provides a gradual transition in firmness, ensuring balanced support while maintaining a comfortable and responsive feel. Its adaptive support enhances spinal alignment, making it suitable for side, back, and stomach sleepers.
- 5-Zone Support Foam: The base layer is the 5-Zone Support Foam, engineered to provide targeted support and stability. It is designed with five distinct zones that offer varying levels of firmness, catering to different parts of the body for optimal alignment. This zoning technique reduces pressure on heavier areas like the hips and shoulders while supporting lighter areas like the head and feet. The high-density construction enhances durability, preventing sagging and maintaining structural integrity over time.
Performance of SweetNight COOLNEST
Cooling
The SweetNight COOLNEST Mattress utilizes advanced cooling technology to maintain a comfortable sleeping temperature throughout the night, making it comfortable for very hot sleepers.
To evaluate its cooling performance, we conducted a 20-minute heat retention test by having a reviewer lie on the mattress to allow body heat to transfer to the surface. The CoolNest™ Cover efficiently promoted airflow, dispersing heat and maintaining a consistently cool surface.
The GelFlu™ High Resilience Foam and Gel-Infused Memory Foam layers effectively pulled heat away from the body, preventing excessive warmth buildup. The mattress’s design ensured that the medium surface maintained good airflow, allowing for a refreshing sleep experience. Its unique combination of GelFlu™ High Resilience Foam and a 3D-Woven CoolNest Cover makes the COOLNEST mattress stay up to 8°F cooler than conventional options, making it an appealing choice for hot sleepers.
The cooling performance was notable; the mattress didn’t retain any heat around the hip and shoulder areas, which is uncommon with memory foam layers, ensuring that no matter how hot you sleep, you’ll feel comfortable on the COOLNEST.
Overall, the SweetNight COOLNEST Mattress scored 4.5/5 in cooling, making it a reliable option for most sleepers, including those who tend to overheat at night.
Responsiveness
To assess responsiveness, we conducted a test by placing a 20-pound ball on the mattress and measuring the time it took to return to its original shape after the ball was removed.
The GelFlu™ High Resilience Foam responded rapidly, taking just 1.2 seconds to recover, ensuring that combination sleepers could switch positions without feeling stuck.
The adaptive nature of the transition foam facilitated smooth movements, minimizing resistance during position changes. The buoyant support provided by the 5-Zone Support Foam added a springy feel, enhancing ease of movement across the mattress surface.
The SweetNight COOLNEST mattress scored 4.3/5 in responsiveness, delivering a dynamic sleep experience.
Motion Isolation
We conducted two tests to evaluate the motion isolation capabilities of the SweetNight COOLNEST Mattress.
In our first test, a glass of water was placed on one side of the mattress while a 20-pound ball was dropped on the opposite side. The gel-infused memory foam effectively absorbed the impact, causing minimal ripples in the water, indicating strong motion isolation.
In the second test, one reviewer rolled around on one side while another remained still on the opposite side. The mattress minimized motion transfer, with the adaptive transition foam isolating movements efficiently. The still reviewer didn’t feel their partner’s movements.
This is particularly beneficial for couples, as it reduces disturbances caused by a partner's movements during the night. However, slight vibrations were noticeable due to the resilient nature of the GelFlu™ High Resilience Foam.
Overall, the SweetNight COOLNEST Mattress scored 4.4/5 in motion isolation, making it an excellent choice for light sleepers and couples.
Edge Support
During the edge support test on the SweetNight COOLNEST, we applied direct pressure to the sides of the mattress to evaluate compression. The 5-Zone Support Foam provided firm resistance, maintaining structural integrity even under significant pressure.
When a reviewer sat on the edge for our second test, the mattress showed moderate compression but maintained stability, preventing the feeling of rolling off. This is beneficial for sleepers who like to sit or sleep near the edge of the bed.
The high-density support base reinforced the perimeter, ensuring consistent support across the entire surface. Although there was minor sinkage during prolonged sitting, the mattress quickly regained its shape once the pressure was released.
Overall, the SweetNight COOLNEST Mattress scored 4.1/5 in edge support, delivering reliable stability and maximizing usable surface area.
Noise
Our noise testing involved dropping a 20-pound ball on the mattress while sensitive microphones recorded any sounds.
The SweetNight COOLNEST mattress produced minimal noise during impact, thanks to its all-foam construction and noise-absorbing memory foam layers. The individually wrapped 5-Zone Support Foam springs worked independently, reducing friction and preventing creaking sounds commonly associated with innerspring mattresses.
Even when shifting positions or sitting on the edge, the mattress maintained a quiet profile, ensuring an undisturbed sleep environment. This makes it suitable for light sleepers or those who share a bed with a restless partner.
Overall, the mattress performed well in noise reduction, earning a 4.5/5 in noise testing, highlighting its whisper-quiet design.
Sex
The SweetNight COOLNEST Mattress offers a balanced combination of bounce, support, and comfort, making it a suitable option for intimate activities. Its GelFlu™ High Resilience Foam provides a responsive and buoyant feel, facilitating ease of movement.
The 5-Zone Support Foam ensures stability, allowing for consistent support without excessive sinkage. The mattress’s cooling technology helps maintain a comfortable temperature during prolonged use, enhancing overall comfort. Edge support was found to be reliable, increasing the usable surface area.
However, the medium feel may not provide as much springiness as traditional innerspring mattresses. Despite this, the adaptive and supportive layers allow for fluid movement without feeling stuck.
Overall, the SweetNight COOLNEST Mattress scored 4.3/5 in sex performance, delivering an enjoyable and comfortable experience.
Pressure Relief
The 5-Zone Support Foam in the SweetNight COOLNEST Mattress is designed to provide targeted pressure relief by offering varying levels of firmness across five distinct zones. This zoning technique ensures that heavier areas like the hips and shoulders receive adequate support, while lighter areas such as the head and feet experience gentle cushioning. As a result, the mattress promotes optimal spinal alignment and evenly distributes body weight, reducing pressure buildup and discomfort throughout the night.
Using a pressure mapping system, we evaluated how well the SweetNight COOLNEST Mattress relieves pressure across different sleeping positions.
The results, indicated by a gradient of blue (low pressure) to red (high pressure), were as follows:
- Back Sleepers: The Gel-Infused Memory Foam and Ocean Memory Foam layers provided balanced contouring, reducing pressure on the lower back and promoting spinal alignment. The pressure map displayed mostly blue and green zones, indicating even weight distribution.
- Side Sleepers: Pressure relief was effective around the shoulders and hips, thanks to the adaptive transition foam that cushioned these sensitive areas. The pressure map showed minimal yellow zones, demonstrating reduced pressure buildup.
- Stomach Sleepers: The high-density support base maintained a flat and supportive surface, preventing excessive sinkage in the midsection. The pressure map showed consistent blue zones, reflecting proper spinal alignment.
Overall, the SweetNight COOLNEST Mattress effectively distributes body weight and alleviates pressure points, making it suitable for various sleeping positions. It earned a 4.4/5 in pressure relief, ensuring a comfortable and supportive sleep experience for most sleepers.
SweetNight Warranty and Company Policies
Warranty
The SweetNight COOLNEST Mattress is backed by a 10-year warranty, protecting against defects in materials and workmanship. This warranty covers issues such as sagging, manufacturing flaws, and abnormal wear, ensuring long-term durability and peace of mind. SweetNight’s warranty policy reflects the brand’s confidence in its product quality, supporting a risk-free purchase.
Trial
SweetNight offers a 100-night sleep trial for the COOLNEST Mattress, allowing customers to test the mattress in their home environment. This trial period provides ample time to adjust to the mattress’s feel and support. If unsatisfied, customers can initiate a return within the trial period for a full refund, making the purchase risk-free and customer-friendly.
Returns
Returns are hassle-free with SweetNight’s free return policy during the 100-night sleep trial. If the mattress does not meet expectations, customers can contact customer service to initiate the return process. SweetNight arranges for the mattress pickup and provides a full refund, ensuring a stress-free return experience.
Shipping
SweetNight offers free shipping on all COOLNEST Mattress orders within the United States. The mattress arrives compressed in a box, facilitating easy handling and setup. Delivery is typically completed within 5-7 business days, depending on the customer’s location. SweetNight’s efficient shipping process enhances customer convenience and satisfaction.
Pricing
The SweetNight COOLNEST Mattress is priced between $389 and $699, offering competitive value for its advanced features and high-quality construction. This price range makes it accessible to a wide variety of customers looking for a reliable hybrid mattress with enhanced cooling and pressure relief capabilities.
The mattress is available in multiple sizes, including Full, Queen, California King (CLK), and King, with thickness options of 12 inches, 14 inches, and 16 inches depending on the size. The full size is available in both 12’’ and 14’’ versions, while the Queen offers options in 12’’, 14’’, and 16’’. For those seeking more space, the California King comes in a 14’’ version, and the King size is available in 12’’, 14’’, and 16’’ thicknesses.
Despite its affordable price range, the COOLNEST Mattress provides impressive value by combining premium materials such as gel-infused memory foam, high-resilience foam, and a 5-zone support system that ensures targeted pressure relief. The hybrid design, which includes individually wrapped coils, promotes better airflow, motion isolation, and edge support, contributing to a comfortable and supportive sleeping experience.
Additionally, its medium feel accommodates various sleeping positions, making it suitable for back, side, and stomach sleepers. The inclusion of a 100-night sleep trial and a 10-year warranty adds to its value, allowing customers to test the mattress risk-free and enjoy long-term durability.
For the latest pricing and promotions, check out SweetNight's website.
Policies Overview
POLICY | DETAILS |
---|---|
Warranty | 10-Year Warranty Mattress |
Trial | 100-Nights Free Trial |
Return Policy | Free Returns |
Shipping | Free Shipping the United States |
Financing Options | Zero Interest—Via Affirm |
Country of Origin | Made in China |
FAQs about SweetNight COOLNEST
Is the SweetNight COOLNEST mattress hypoallergenic?
Yes, the SweetNight COOLNEST Mattress is made with hypoallergenic materials, including the CoolNestTM Cover, which is resistant to dust mites and allergens. This makes it a good choice for allergy sufferers.
Can I flip the SweetNight COOLNEST mattress?
No, the COOLNEST mattress is designed with a specific layered construction and is not flippable. However, it is recommended to rotate the mattress every 3-6 months to promote even wear.
How do I clean the SweetNight COOLNEST mattress?
The SweetNight COOLNEST mattress cover is not removable. To clean, it is recommended to spot clean with mild detergent and cold water. Avoid using harsh chemicals or soaking the mattress to maintain its integrity.
Will the SweetNight COOLNEST mattress sag over time?
The SweetNight COOLNEST mattress is designed with high-resilience GelFluTM foam and a 5-zone support system to resist sagging. Regular rotation and proper support from a solid foundation can help maintain its shape.
Is there any odor when unpacking the SweetNight COOLNEST mattress?
We noticed a mild odor when first unpacking the SweetNight COOLNEST mattress. This is normal and due to the foam being compressed. The smell is non-toxic and should dissipate within 24 to 72 hours.
What type of foundation is recommended for the COOLNEST mattress?
The mattress is compatible with most foundations, including box springs, platform beds, slatted bases, and adjustable bed frames. Ensure the foundation is sturdy to provide adequate support.
Can I finance the purchase of the SweetNight COOLNEST mattress?
Yes, SweetNight offers financing options with flexible payment plans, allowing customers to purchase the mattress in installments. Visit SweetNight’s website for more details on financing options.
Overall Rating
Conclusion
The SweetNight COOLNEST Mattress delivers reliable comfort and support with its advanced hybrid construction, combining gel-infused memory foam with a 5-zone support system. It performs well in cooling, pressure relief, and motion isolation, making it a suitable option for a variety of sleepers, especially couples and those with joint discomfort.
Its medium feel caters to multiple sleeping positions, providing balanced contouring and support. While the mattress is not flippable, its durable layers are designed to resist sagging over time. With a competitive price range, a 100-night sleep trial, and a 10-year warranty, the SweetNight COOLNEST Mattress offers good value and long-term comfort.
SweetNight CoolNest Mattress

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