Main Features List: Leesa Original Mattress
To help you get a better idea of what to expect, here is a snapshot of the Original’s top features based on our team’s research:
- USA design and assembly
- Breathable cool-knit cover
- Exclusive cooling foam
- Contouring memory foam
- High-density base support foam
- Risk-free 100-night sleep trial
The Original Mattress is designed to be used with a solid base or a slatted base, such as the Leesa Foundation, which is available as an add-on at checkout. Solid, flat bed slats rather than a box spring provide the best support for Leesa mattresses, as per its US website. Using bowed or flexible slats can lead to damage and void the manufacturer’s limited lifetime warranty for the mattress.

Is Medium Firmness Right for You?
The firmness of a mattress is important to know as it helps you decide if it is likely to have the feel you want. The Leesa Original has a medium firmness. That means it is in the range between 4-6 on the industry-standard mattress comfort scale, whereby 1 is the softest and 10 is the firmest. Many average-weight side, back, and combination sleepers find a medium level of firmness, like the Original Mattress has, to be comfortable and supportive enough.
Lightweight sleepers, however, may prefer a soft mattress over a firmer one, and stomach sleepers may want a firmer mattress to prevent the hips from sinking. Plus-size sleepers may need a firmer mattress than Leesa’s Original for optimal support. On the other hand, the Original Mattress can be great for couples with different preferences for firmness and softness as it offers a middle ground. Ultimately, the mattress feel that you prefer is a personal thing.
Size Options
Leesa’s popular Original Mattress is 10 inches thick. It is available in several standard US sizes to suit singles and couples:
- Twin: 38” x 75”
- Twin XL: 38” x 80”
- Full: 53” x 75”
- Queen: 60” x 80”
- King: 76” x 80”
- Cal King: 72” x 84”
Leesa Original Mattress Review of Construction
Understanding how the all-foam mattress is made and the materials used can help you decide if it’s a good fit for your home.
USA Design and Assembly
If supporting local is important to you, this feature matters. The Original Mattress is designed and assembled in Leesa’s Arizona factory by a craftsperson with over a decade of experience, as per its US website. The mattress is made to order and can vary up to 2 inches on any side as it is handmade.
4 Layers
This mattress has four layers and features three types of CertiPUR-US® certified foams, with a breathable cool-knit cover. The top cover is a polyester-viscose blend.
Below is a 2-inch layer of exclusive foam for cooling and comfort. The third layer is 2 inches of contouring memory foam. Finally, a thick 6-inch layer of high-density support foam offers support and durability for various body types.
Fiberglass Free
The Leesa Original is a fiberglass free mattress. Free of toxic chemical flame retardants, the mattress has a fire retardant yarn with a rayon barrier derived from 100% regenerated cellulose. That keeps away fiberglass-related issues, such as itchy eyes and skin irritation.
Leesa Original Mattress Review: Pros and Any Limitations
All-Foam Type
If you grew up on a strictly foam mattress, the Original Mattress is likely to feel familiar and comforting with its hug-like feel. Others may prefer a strictly innerspring mattress that has more bounce. Some people look for a hybrid type combining foam and springs, such as plus-size sleepers wanting more support. An all-foam mattress type generally molds to the body, encouraging spinal alignment for many back, side, and combination sleepers, which may reduce or prevent back pain.
Extra Pressure Relief
The deep layer of memory foam contours the body, offering superior pressure relief in the hip, shoulder, and back. That is especially beneficial when lying on your back and side, where these sensitive areas might otherwise get sore during the night. That may prevent or reduce soreness in the morning.
Five-Star Reviews
Leesa’s Original memory foam mattress has over 14,000 five-star reviews on its US website. Several sleepers describe the mattress as improving their sleep quality and being very comfortable and supportive. Others point out it is well-made. While these results are not guaranteed, knowing so many people have a positive experience with this mattress can be reassuring.
Does the Leesa Original Mattress sound like a good fit for you? See what else buyers have to say.
See Buyer Reviews
Cooling Properties
High-airflow foams help keep this mattress cool. Those who overheat regularly at night may look for a mattress with a breathable design like this one. The foams encourage air circulation, including a 2-inch layer of breathable foam exclusive to Leesa. That helps prevent the mattress from trapping heat the way traditional foams can do.
Plus, a moisture-wicking cover helps keep the top sleep surface dry. That may prevent waking up unexpectedly during the night in a sweat. Cooling features in the Original Mattress can help some sleepers enjoy the hug-like feel of foam without heat buildup.
Motion Isolation
Light sleepers who easily awaken will appreciate that a memory foam mattress like Leesa’s Original is known for excellent motion isolation. That means that if your partner moves during the night, you are less likely to feel it on your side of the mattress. That makes this mattress right for some couples.
Certified Foam
All three foams in this mattress are CertiPUR-US® certified. This well-recognized label means the foams meet rigorous standards for content, durability, and emissions. They are free of certain chemicals and heavy metals, like lead and mercury, and contain no ozone depleters. Environmentally conscious shoppers will likely appreciate this certification.
The CertiPUR-US® certification also generally means less odor or “off-gassing” when unboxing a new mattress containing foam. The foams have low VOC (volatile organic compound) emissions for indoor air quality. Those who are sensitive to smells or have breathing difficulties are more likely to look for this label.
Plus, the mattress is GREENGUARD Gold certified after undergoing rigorous testing for over 360 VOCs, making for minimal volatile organic compound emissions. That help make this mattress part of a healthier bedroom.
Mattress in a Box
Leesa’s Original is a mattress in a box, a popular type online for its affordability and delivery to your door. The mattress is compressed, rolled, and packaged to conveniently ship to your home without a special shipping service or middleman. Fewer fees involved means mattresses in a box are often priced lower than in physical showrooms. Moving the box to the bedroom is also typically easier than a traditional mattress.

Reasonable Price
The Leesa Original Mattress is in the mid-range for all-foam mattress prices. It is well-priced, in our opinion, given the top-quality foams, opportunity for pressure relief, and free delivery to all 50 US states.
Free shipping to your home adds to the convenience of not having to pick it up from a store. There are also occasional promos for online shoppers only. If you want help with mattress setup, a White Glove Delivery service is available for a small fee.
Community Initiatives
Choosing the Original Mattress means supporting Leesa’s community-focused initiatives. Leesa donates thousands of mattresses each year to those in need, as per its US site. Leesa also takes steps to be more eco-friendly by collecting plastic through orders before it can reach the sea, helping to maintain cleaner oceans.
What Else to Know: Sleep Trial and Warranty
Sleep Trial
Leesa offers a risk-free 100-night sleep trial with the Original Mattress. That gives you several weeks to try it at home. In the unlikely case that you are not fully satisfied, having the option to return the mattress after 30 days for a full refund, less the value of any discount received, can be reassuring.
Warranty
A manufacturer’s warranty is good to know about, too. Leesa’s Original Mattress includes a limited lifetime warranty covering specific defects in workmanship or materials, with prorated coverage beginning in year 11. The impressive warranty length shows Leesa’s confidence in its mattress. Reading the mattress warranty helps you know what it includes, any exclusions, and other details.
Concluding Remarks: Leesa Original Mattress Review
The contouring feel of a memory foam mattress like this one, which is designed and assembled in the US, appeals to many sleepers. The 10-inch thick Original Mattress is fiberglass free and features certified foam layers beneath a breathable cover.
While its medium firmness may not be right for some stomach or plus-size sleepers, it offers comfort, pressure relief, and enough support for many side, back, and combination sleepers, as shown by the thousands of five-star reviews online. Also, hot sleepers may find relief with the affordable mattress’s cooling properties.
Finally, a risk-free sleep trial gives you time to try the contouring mattress at home. The limited lifetime warranty also helps protect you. The Leesa Original Mattress is a well-constructed memory foam mattress to consider.