Leesa Oasis Chill Hybrid Mattress Review

Based on Q&A session with our Chief Sleep Science Editor, www.SmartMattressBuy.com

Last updated | April 6, 2024

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Leesa Oasis Chill Hybrid Mattress


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Oasis Chill Hybrid Mattress

By Brand: Leesa
3.92 out of 5.0
$1319 $923

Product Description

Leesa Oasis Chill Hybrid Mattress is 13.5-inch mattress designed and assembled in the USA. The mattress features six layers with plush or cushion-firm firmness to choose from. Its combination of advanced cooling technology with premium materials raised the bar a few notches higher than other hybrid mattresses in this price range.

In this Leesa Oasis Chill Hybrid Mattress Review, we’ll delve deep into the pros and cons, construction, firmness, and other key mattress features. A comprehensive Leesa mattress review will help you make an informed decision.

Crafted with precision and expertise, the handmade nature of Leesa Oasis Chill Hybrid Mattress provides cooling comfort and a relaxed sleep experience. The advanced cooling technology ensures that you stay cool and comfortable throughout the night, even on the hottest summer nights. The combination of memory foam and pocket springs delivers above-average support while contouring to your body’s unique curves.

But no product is perfect, and Leesa Oasis Chill Hybrid Mattress Review wouldn’t be complete without discussing the potential downsides. From shipping to warranty, motion isolation to edge support, SmartMattressBuy covers it all.

So, if you’re looking to invest in a new mattress that offers a good balance of cooling comfort and support, join us as we present to you a comprehensive review of Leesa Oasis Chill Hybrid Mattress.

Q1. What is unique about Oasis Chill Hybrid mattress? Does it provide superior cooling, comfort, back support, and pressure relief?

Leesa Oasis Chill mattress is a hybrid mattress featuring a good combination of foam and coil mattresses. It is specifically designed for hot sleepers. The mattress features a cooling cover, copper-infused foam, and breathable springs. All these together will help you lull into a peaceful, relaxed sleep in no time.

Here is why this mattress is suitable for cooling, back support, and pressure relief:

Cooling Technology:

Oasis Chill Hybrid mattress features advanced cooling technology, meticulously designed to create a refreshingly cool and comfortable sleep environment. The mattress features a cover made from a blend of polyester, polyethylene, and rayon. These materials are specifically chosen for their cooling properties. This unique combination ensures the surface remains cool throughout the night, enhancing overall comfort.

Within the comfort system, the primary foam layer incorporates gel infusions. This gel technology adds a plush feel to the mattress and plays a crucial role in dissipating heat. Gel-infused foam regulates temperature by preventing heat buildup, ensuring a consistently cool sleeping surface.

The second layer of the comfort system introduces copper infusion within the memory foam. This innovative addition serves to disperse heat effectively, complementing the cooling efforts of the gel-infused layer. Copper-infused memory foam maintains a cool sleep surface, offering an additional temperature control layer.

Moreover, the mattress design includes a coil core with individually wrapped springs. The airflow through this coil system is a key element of the cooling strategy. Efficient ventilation dissipates heat, ensuring the mattress surface remains cool. The combination of gel and copper infusions and the airflow through the coil core creates a comprehensive cooling mechanism, promoting a consistently cool and enjoyable sleep experience.

Comfort and Pressure Relief:

Leesa Oasis Chill Hybrid Mattress incorporates a carefully crafted comfort system consisting of three foam layers, each contributing to a luxurious feel and effective pressure relief. Including gel-infused polyfoam and copper-infused memory foam sets the stage for a plush and supportive sleep surface.

The gel-infused polyfoam layer in the comfort layer, provides a soft and responsive feel. Moreover, gel infusion enhances the foam’s ability to dissipate heat, creating a cooler and more comfortable sleeping environment.

The subsequent layer comprises copper-infused memory foam, a material known for its contouring properties. This layer not only adds to the overall plushness of the mattress but also brings unique benefits. The infusion of copper helps regulate body temperature, preventing heat buildup commonly associated with traditional memory foam. Additionally, the copper-infused memory foam molds to the body’s contours, offering personalized support and effectively alleviating pressure points.

This combination of foam layers creates an ideal setting for side sleepers. The mattress allows hips and shoulders to gently sink into the surface, aligning the spine and preventing the development of pressure points. The result is a restful and comfortable sleep experience that caters to the specific needs of side sleepers, providing both softness and support where it matters most.

Overall, Leesa Oasis Chill Hybrid’s innovative comfort system exemplifies a commitment to delivering a plush feel with targeted pressure relief, making it an excellent choice for those who prioritize comfort and support in their sleep preferences.

This mattress performs slightly better than other average hybrid mattresses. If you wish to explore other options in the hybrid mattress categories, you can visit Best Hybrid Mattresses and take your pick from the list.

Back Support:

The distinctive zoned core of Leesa Oasis Chill Hybrid Mattress is a key feature that contributes to enhanced support and posture, which is particularly beneficial for back sleepers. This innovative design focuses on providing targeted support to specific areas of the body, promoting spinal alignment and overall good posture during sleep.

For back sleepers, the zoned core plays a crucial role in alleviating lower back pain. By molding to the natural curvature of the lumbar region, the mattress provides a customized level of support precisely where it is needed. This contouring effect helps distribute body weight evenly and reduces stress on the lower back, contributing to a more comfortable and pain-free sleep experience.

In essence, the zoned core of Oasis Chill Hybrid acts as a supportive foundation that adapts to the unique needs of back sleepers, aligning the spine and minimizing pressure points. This targeted support enhances the mattress’s overall comfort and addresses concerns related to lower back pain, making it a valuable choice for those seeking a mattress designed to promote a healthy and well-supported sleep posture.

Q2. How firm is Leesa Oasis Chill Hybrid mattress?

Leesa Oasis Chill Hybrid Mattress offers two firmness options – Plush and Cushion-firm. The plush version provides medium-soft firmness as it sits at 4 on a firmness scale of 1-10. Meanwhile, the Cushion-Firm version is scaled at 5 and termed medium firm.

As per ScienceDirect research paper, Medium-Firm mattresses improve sleep quality by 55% and alleviate back pain by 48% in chronic patients**.

**Patients with chronic back pain.

Q3. How thick is Leesa Oasis Chill Hybrid Mattress?

Leesa Oasis Chill Hybrid Mattress is 13.5 inches thick. Its construction includes a 1.75-inch gel-infused polyfoam quilted into the cooling cover for surface comfort. The next layer comprises 1.5 inches of copper-infused memory foam for deeper cradling and additional temperature regulation. Another 1.5 inches of adaptive memory foam enhances responsiveness.

The mattress’s support core features 8 inches of zoned pocketed coils for targeted support, reducing motion transfer. A final 0.75-inch layer of high-density polyfoam supports the coils and provides a stable base. The mattress cover, composed of polyester, polyethylene, and rayon, is designed for surface-level cooling.

Q4. Is Oasis Chill Mattress Safe?

Leesa Oasis Chill Hybrid Mattress prioritizes safety and quality. The mattress contains foams certified by CertiPUR-US, ensuring they meet rigorous third-party standards for low indoor VOC (Volatile Organic Compounds) emissions. This certification reflects a commitment to using materials that contribute to better indoor air quality. Leesa’s adherence to CertiPUR-US standards provides assurance that the mattress is made without harmful chemicals.

Moreover, the mattress undergoes testing to comply with safety regulations, offering a reliable and secure sleep environment. Leesa’s dedication to certifications aligns with industry standards, reinforcing the commitment to providing consumers a high-quality and safe product.

Q5. What sizes are available for Leesa Oasis Chill Hybrid mattresses?

Leesa Oasis Chill mattress is available in six standard sizes – Twin, Twin XL, Full, Queen, King, and Cal King.

The dimensions can vary by up to 2 inches on any side due to the handmade nature of this mattress.

Q6. Briefly discuss Leesa Oasis Chill mattress policy on shipping, delivery, risk-free trial, and warranty.

Leesa Oasis Chill Hybrid Mattress has customer-friendly policies.

Shipping and Delivery:

Leesa offers free shipping to all 50 U.S. states via FedEx. The mattress is shrink-wrapped, rolled, and boxed for convenient shipping. While expansion takes about an hour post-unboxing, reaching intended firmness may take a few days.

Leesa manufactures made-to-order mattresses. It takes 5-9 business days for these mattresses to be assembled. Once assembled, they are shipped. The best thing about Leesa is that their mattresses do not sit in a warehouse collecting dust.

Before mattresses leave Dream Factory, Leesa sends an email with tracking details.

White Glove Delivery:

White Glove delivery is available for a fee, providing in-home setup and removal of packaging materials.

Risk-Free Trial:

Leesa provides a 100-night sleep trial. After 30 nights, customers can return the mattress for a full refund within the trial window. A $100 return fee applies for customers in Alaska and Hawaii.


The mattress is backed by a 10-year limited warranty. Leesa covers repair or replacement for qualifying defects, including visible indentations over 1 inch deep and craftsmanship flaws. The mattress owner is responsible for associated transportation costs.

Pros & Cons


  1. Suitable for hot sleepers looking for a cooling mattress.
  2. Offers significant pressure relief, especially for side sleepers.
  3. Good motion isolation makes it a suitable choice for couples.
  4. Its zoned core provides targeted support to back sleepers.


  1. Relatively average edge support.
  2. Some off-gassing odors may be present initially due to the synthetic foams.
  3. Both firmness options may be too soft for most stomach sleepers.


Leesa Oasis Chill Hybrid Mattress offers a versatile sleep experience with two distinct firmness options catering to a range of preferences and body types:

Plush (Medium-Soft):

With a firmness level of 4 on a 10-point scale, the Plush option is tailored for those who prefer a medium-soft surface. This variant is suitable for side sleepers weighing under 130 pounds and provides comfort and support.

The medium-soft surface ensures desirable pressure relief, allowing hips and shoulders to sink in comfortably, effectively preventing the development of pressure points. The Plush option delivers a supportive and luxurious sleep environment for individuals in this weight range.

Cushion-Firm (Medium):

The Cushion-Firm option, corresponding to a firmness level of 5 on the 10-point scale, is designed to meet the needs of various sleep styles. Recommended for side sleepers over 130 pounds, back sleepers under 230 pounds, or stomach sleepers under 130 pounds. The medium surface provides extra support while maintaining a comfortable balance of contouring.

Back sleepers, especially those under 230 pounds, find the Cushion-Firm option suitable, as it offers the necessary support without compromising the mattress’s contouring capabilities. Similarly, stomach sleepers under 130 pounds benefit from the additional support, ensuring a restful and well-supported sleep experience.

Overall, the Cushion-Firm option caters to a broader range of sleep preferences and body weights, making it a versatile choice for those seeking adaptability and support.

Material & Construction

Q1. What are the unique technology, design, and materials used in the construction of Leesa Oasis Chill Hybrid Mattress?

Leesa Oasis Chill is a 13.5-inch hybrid mattress constructed with six layers. Each layer serves a specific purpose to provide a comfortable and supportive sleep surface.

Here’s a detailed breakdown of each layer:

  1. Ultra Cool Cover:

The Ultra Cool Cover is the outermost layer, featuring a blend of 81% Polyester, 17% Polyethylene, and 2% Rayon. This composition is strategically designed for optimal temperature regulation, ensuring a sleep surface that stays refreshingly cool throughout the night. This layer serves as the initial point of contact, enhancing the overall sleeping experience.

  1. Quilt Foam Comfort Layer:

Moving beneath the cover, the Quilt Foam Comfort Layer is 1.75 inches thick and made of CertiPUR-US® certified quilted foam. This layer is dedicated to elevating surface comfort by providing a soft initial feel. Moreover, it plays a crucial role in dissipating heat, contributing to a cooler sleeping environment and preventing discomfort associated with overheating.

  1. Copper-Infused Memory Foam Comfort Layer:

The third layer introduces the Copper-Infused Memory Foam Comfort Layer, measuring 1.5 inches in thickness. Composed of CertiPUR-US® certified copper-infused memory foam, this layer brings a unique blend of benefits. It not only offers deeper cradling for enhanced comfort but also regulates body warmth through the infusion of copper, effectively contributing to pressure relief and a more tailored sleep experience.

  1. Responsive High-Performance Foam Comfort Layer:

The fourth layer consists of Responsive High-Performance Foam, also 1.5 inches thick and CertiPUR-US® certified. This layer is designed to enhance the mattress’s responsiveness, allowing it to adapt dynamically to various movements during sleep. This adaptive quality contributes to a comfortable and personalized sleep surface, catering to the individual preferences of the sleeper.

  1. Individually Wrapped Spring System (Pocketed Coils):

Progressing further, the fifth layer introduces the Individually Wrapped Spring System, featuring up to 1,032 coils. These coils are individually wrapped and strategically arranged in three zones, with two additional side rows dedicated to edge support. This layer provides targeted support, reduces motion transfer, and promotes good posture by offering varying firmness levels in specific areas.

  1. High-Density Base Support Foam:

Finally, the sixth layer is the High-Density Base Support Foam, with a thickness of 0.75 inches and CertiPUR-US® certification. This layer serves as the foundational support for the pocketed coils, ensuring stability and durability for the entire mattress. It plays a crucial role in maintaining the structural integrity of the mattress over time, contributing to its long-lasting performance.

Certifications and Standards

All foam layers are CertiPUR-US® certified, meeting rigorous standards for low indoor VOC emissions and ensuring the use of safe materials.

Leesa Oasis Chill Hybrid Mattress is meticulously crafted with a cooling cover, multiple CertiPUR-US® certified foam layers, and a zoned pocketed coil system to provide a well-balanced sleep experience with enhanced comfort, support, and temperature regulation.

Get more choices on Eco-Friendly Mattresses.


Oasis Chill Hybrid Mattress
Materials & Construction (1=Least, 5=Best) (4.25/5)
Repositioning (1=Least, 5=Best) (3.75/5)
Comfort (1=Least, 5=Best) (4.00/5)
Cooling (1=Least, 5=Best) (3.75/5)
Motion Isolation (1=Least, 5=Best) (4.00/5)
Edge Support (1=Least, 5=Best) (3.75/5)
Overall Rating 3.92/5
Rating Scale: 1 = Average, 2 = Good, 3 = Very Good, 4 = Excellent, 5 = Winner



Q1. How would you rate Leesa Oasis Chill Mattress from a repositioning & responsiveness perspective? 

  • Repositioning & Responsiveness

The mattress’s design emphasizes repositioning ease and responsiveness. It is particularly evident in the 1.5-inch responsive high-performance foam layer. This CertiPUR-US® certified layer ensures that the mattress quickly adapts to movement, facilitating easy repositioning during sleep.

The mattress’s design makes getting in and out of bed easy. Oasis Chill Hybrid offers a responsive surface that accommodates various sleep preferences without sacrificing comfort.

Comfort, Back Support, Pressure Relief


Q2. How would you rate Oasis Chill Hybrid Mattress for providing comfort and pressure relief to sleepers? 

  • Comfort & Pressure Relief


  • Leesa Oasis Chill Hybrid Mattress prioritizes comfort through its thoughtful layer construction. The ultra-cool cover provides a soft and inviting surface, complemented by the 1.75-inch quilt foam layer for initial plushness. The mattress’s commitment to CertiPUR-US® certified materials ensures a comfortable and safe sleep environment. With layers designed for cooling, support, and adaptability, Oasis Chill Hybrid combines comfort with innovative technology for a restful night’s sleep.

Pressure Relief:

  • Crafted with pressure relief in mind, Oasis Chill Hybrid provides the desired support to alleviate pressure points. The copper-infused memory foam layer, 1.5 inches thick, molds to the body, redistributing weight and reducing pressure on sensitive areas. This feature and the softness of the quilt foam layer ensure a comfortable and pressure-relieving sleep surface. It is particularly beneficial for side sleepers seeking optimal spinal alignment.

Cooling & Temperature Control


Q3. How would you rate the cooling and overall temperature control characteristics of Leesa Oasis Chill Hybrid Mattress?

  • Cooling

Leesa Oasis Chill Hybrid Mattress is designed for hot sleepers. Its advanced cooling technology features an ultra-cool cover composed of 81% Polyester, 17% Polyethylene, and 2% Rayon. This specialized fabric, combined with a 1.75-inch quilt foam layer infused with gel, actively dissipates heat, ensuring a consistently cooler sleep surface.

The copper-infused memory foam layer, 1.5 inches thick, further regulates body temperature by dispersing warmth.

Overall, the mattress design prioritizes a refreshing and cool sleeping experience.

  • Temperature

Engineered with temperature regulation in mind, Oasis Chill Hybrid utilizes advanced materials to control heat build-up. The cover’s polyester, polyethylene, and rayon blend and gel-infused and copper-infused memory foam layers promote above-average temperature control. Its cooling properties seep through the layers, creating a cooler environment than traditional mattresses. This thoughtful construction contributes to a more comfortable and temperature-neutral sleep experience.

Motion Isolation and Sharing a Bed


Q4. Does Leesa Oasis Chill Hybrid Mattresses provide reasonable motion isolation when sharing a bed with others?

  • Motion Isolation

The mattress demonstrates above-average motion isolation, scoring 8.5/10 in this aspect. The individually wrapped spring system with up to 1,032 coils ensures minimal motion transfer, making it an ideal choice for couples. The mattress’s ability to absorb vibrations contributes to undisturbed sleep, allowing partners to rest peacefully without being affected by each other’s movements.

Leesa Oasis Chill Hybrid mattress is suitable for couples. Nevertheless, many times, two people sharing the same bed with differing sleep preferences may face some disturbances during sleep. Check best mattress for couples to access a wide range of couple-friendly mattresses.

Edge Support


Q5. How would you rate the edge support of Leesa Oasis Chill Hybrid Mattresses?

  • Edge Support

Oasis Chill Hybrid provides satisfactory edge support, with a design incorporating 3 zones and 2 side rows of individually wrapped springs.

The mattress scores 5.5/10 for Plush and 7/10 for Cushion-Firm in edge support, offering stability even near the perimeter. While not the highest, this level of edge support is suitable for most sleepers, contributing to a consistent and supportive sleep surface.

Recommendation based on sleeping style

Leesa Oasis Chill Hybrid Mattress Performance for Different Sleep Styles:

Side Sleepers:

Plush (Medium-Soft) Option: Recommended for side sleepers weighing under 130 pounds. The medium-soft surface (4/10 firmness) provides exceptional pressure relief and support, preventing the development of pressure points.

Cushion-Firm (Medium) Option: Suitable for side sleepers over 130 pounds. The medium surface (5/10 firmness) offers ample contouring while providing extra support, promoting better sleep posture.

Back Sleepers:

Both the Plush and Cushion-Firm options are suitable for back sleepers. The zoned support and contouring provided by the mattress are well-suited for individuals who primarily sleep on their backs.

Most back sleepers, especially those under 230 pounds, find the Cushion-Firm version to be comfortable, although those under 130 pounds may still appreciate the balance of contouring and support on the Plush option.

Stomach Sleepers:

Plush (Medium-Soft) and Cushion-Firm (Medium) Options: While some stomach sleepers weighing under 130 pounds might enjoy the Oasis Chill Hybrid, both options may be too soft for most stomach sleepers. Individuals under 130 pounds could find relative comfort, as the thick comfort system cushions the front of the body.

However, those over 130 pounds, especially over 230 pounds, may not get the necessary support, with the Plush version being particularly uncomfortable for this group.

Leesa Oasis Chill Hybrid Mattress offers a holistic sleep experience, addressing key factors such as cooling, temperature control, repositioning, responsiveness, comfort, pressure relief, motion isolation, and edge support.

Its innovative design and thoughtful construction cater to various sleep preferences, ensuring a well-rounded and satisfying night’s sleep.

Hope our detailed mattress review on Leesa Oasis Chill Hybrid mattress has answered all your queries. Claim the best deals on Oasis Chill Hybrid mattress now!


Size Price Sale Price Discount
Twin $1259 $881 30%
Twin XL $1259 $881 30%
Queen $1319 $923 30%
Full $1319 $923 30%
King $1559 $1091 30%
Cal King $1559 $1091 30%
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