The all-foam Zinus and Casper mattresses both offer excellent motion isolation.
The Zinus is notable for its affordable price-point and wide availability.
The Casper provides ideal pressure relief for lightweight sleepers.
Zinus vs Casper Mattress Overview
Zinus vs Casper Mattress Overview
Zinus got its start as an outdoor products company in 1979 and began producing mattresses and similar products in 2003. The brand’s main manufacturing site is located in Xiamen, China, and Zinus products are available at many major retailers as well as online. While the company makes a variety of mattress models, this review focuses on the Pressure Relief Green Tea Memory Foam design. Available in 6″, 8″, 10″, and 12″ versions, this all-foam mattress offers a quiet, pressure-relieving sleep surface and good motion isolation at an affordable price-point.
Casper has been producing mattresses, bedding, and bed platforms since 2013. Casper products are available online and at brick-and-mortar stores in 11 states. This review looks at the company’s flagship model, often referred to as the Casper or the Casper Original. Made with both memory foam and polyfoam, the Casper combines support and body-conforming softness, securing a medium (5) rating on the 1-10 firmness scale.
Please note: Both Zinus and Casper sell additional mattresses beyond the models described in this review.
Zinus offers two additional memory foam models: the Cooling Gel Memory Foam Mattress, which is available in 8″, 10″, 12″, and 14″ designs; and the Pressure Relief Cloud Memory Foam Mattress, which comes in 8″, 10″, and 12″ sizes. The company also produces an innerspring mattress and several hybrid models.
Casper’s flagship mattress is also available in a hybrid model. The company’s other mattresses include the Nova Hybrid and the Wave Hybrid.
While both brands offer good motion isolation and support, this page compares and contrasts each mattress’ unique strengths and drawbacks.
Zinus mattresses are affordable, featuring exceptionally low price-points.
Available online and through brick-and-mortar retailers such as Walmart.
Casper Mattress Highlights
Ideal for sleepers under 230 lbs.
Sleeps cooler than many other all-foam beds..
Comfort layers offer balanced pressure relief and support.
Sleep Position Ratings
Zinus Mattress
Ratings for the Zinus Green Tea Mattress vary based on the thickness chosen. The 6″ and 8″ models received the highest ratings from our sleepers over 230 pounds, while the 10″ and 12″ models performed better for our light and average weight sleep testers. Heavier testers, particularly stomach sleepers, found those models to be too soft and body conforming to provide adequate support.
Overall, the mattress served our light-and average-weight back sleepers the best across most mattress thickness options. These testers found that the memory foam provided good pressure point relief with the right amount of cushioning around the hips and shoulders.
Casper Mattress
The Casper best suited people under 230 pounds, all of whom gave the model positive reviews for motion isolation and pressure relief, regardless of their individual sleep styles. While heavier side sleepers found the Casper adequate, back and stomach sleepers over 230 pounds experienced some excess sagging and reduced spinal support.
All of our testers appreciated the model’s temperature neutrality and breathability, which they felt set it apart from similar foam mattresses. They also noted that the Casper offers an exceptionally quiet sleep experience, thanks to its all-foam construction.
Weight
Light
Average
Heavy
Sleep Position
Less than 130 LBS
130 LBS - 230 LBS
Greater than 230 LBS
Side
Back
Stomach
Weight
Light
Average
Heavy
Sleep Position
Less than 130 LBS
130 LBS - 230 LBS
Greater than 230 LBS
Side
Back
Stomach
Weight
Light
Average
Heavy
Sleep Position
Less than 130 LBS
130 LBS - 230 LBS
Greater than 230 LBS
Side
Back
Stomach
Weight
Light
Average
Heavy
Sleep Position
Less than 130 LBS
130 LBS - 230 LBS
Greater than 230 LBS
Side
Back
Stomach
Weight
Light
Average
Heavy
Sleep Position
Less than 130 LBS
130 LBS - 230 LBS
Greater than 230 LBS
Side
Back
Stomach
Our Recommendations
Choose the Zinus Mattress if...
You prioritize affordability.
You share the bed with a partner
You’re seeking a mattress available in a thin profile for a bunk bed or RV.
You’re seeking a foam mattress that offers relief at pressure points.
Choose the Casper Mattress if...
You weigh 230 pounds or less.
You’re looking for a body-conforming mattress that offers pressure relief.
You find other all-foam mattresses too hot.
You or your partner have different sleep styles and/or awaken easily due to movement.
Technical Details Comparison
Sizing and Pricing
Let’s compare the price per size for each mattress brand.
Twin$112 to $200 Zinus$695 Casper
Twin XLN/A Zinus$795 Casper
Full$142 to $347 Zinus$995 Casper
Queen$156 to $392 Zinus$1,095 Casper
King$186 to $467 Zinus$1,495 Casper
Cal King$410 to $467 Zinus$1,495 Casper
Mattress Construction
Next let’s look at how the Zinus and Casper models are made. The table below lists firmness, thickness, weight, and composition specs for both beds.
Product Name
Firmness Options
Thickness
Support Core Components
Comfort Layer Components
Cover Components
Pressure Relief Green Tea (Memory Foam)
Firm (8)
6″
5″ HD Polyfoam
1″ Memory Foam
Jacquard Knit
Firm (7)
8″
4″ HD Polyfoam
2″ Memory Foam 2″ Polyfoam
Jacquard Knit
Medium Firm (6)
10″
5 1/2″ HD Polyfoam
2 1/2″ Memory Foam 2″ Polyfoam
Jacquard Knit
Medium (5)
12″
3 1/2″ HD Polyfoam 3 1/2″ HD Polyfoam
3″ Memory Foam 2″ Polyfoam
Jacquard Knit
The Casper
Medium (5)
11″
7″ 1.8 PCF HD Polyfoam
1.5″ Polyfoam
2″ 4 PCF Zoned Memory Foam
Recycled Polyester, Polyester, Upcycled Cotton, Rayon, and Lycra
How Is the Zinus Built?
The Zinus comes in four thicknesses: 6 inch, 8 inch, 10 inch, and 12 inch. Each thickness profile corresponds with a different respective firmness level: firm (8), firm (7), medium firm (6), and medium (5). Regardless of thickness or firmness level, the Zinus’ all-foam construction offers better body-conforming pressure relief and motion isolation than most innerspring mattresses.
While the 6-inch design consists of a 1-inch memory foam comfort layer over a 5-inch HD support core, the other designs each feature a comfort layer consisting of a 2-inch polyfoam layer under another layer of memory foam. The 8-inch, 10-inch, and 12-inch versions include, respectively, 2-inch, 2.5-inch, and 3-inch memory foam layers. All designs feature a jacquard knit cover.
How Is the Casper Built?
The Casper’s cover is made of a blend of recycled polyester, polyester, upcycled cotton, rayon, and lycra. Each cover contains material made from up to 45 recycled water bottles. At 11 inches, the medium (5) Casper is relatively thick, compared to other all-foam mattresses. The model’s two comfort layers consist of one responsive 1.5-inch layer of polyfoam and a softer 2-inch layer of zoned 4 PCF memory foam. This combination of materials gives the Casper some bounce without reducing its pressure-relieving qualities.
Made from 7 inches of 1.8 PCF polyfoam, the Casper’s support layer provides additional stability. The high-density material helps reduce sagging in the parts of the mattress that bear the most weight.
Zinus Sleep Trial, Warranty, and Delivery
Sleep Trial 100 nights
Shipping Free to contiguous U.S. states
Warranty 10 years, non-prorated
Made In China
Trial Period Details
Zinus offers a 100-night sleep trial for all mattress orders. There is no mandatory break-in period. Customers may return their mattress for a refund at any point during the 100-night period. Mattresses must be in good condition in order to be accepted for returns, and proof of purchase is required. Zinus will issue a prepaid shipping label to customers who request a return, and the company will coordinate the mattress pickup with FedEx. Refunds are issued within two to three business days.
Warranty
Zinus offers a 10-year warranty for all current mattresses. This warranty is entirely non-prorated. Warranty coverage begins on the date of purchase. Zinus will, at their sole option, repair or replace all mattresses that are deemed defective. Mattress owners will be responsible for all shipping and handling costs associated with having a mattress repaired or replaced. The warranty will be voided if the mattress is used with an electric blanket or heating pad.
The warranty will cover visible indentations or sagging in the sleep surface that measure one and a half inches (1 1/2″) or deeper. The warranty will not cover the following:
Normal increases in foam softness that do not affect its pressure-relieving abilities, or visible indentations or sagging in the sleep surface that do not measure one and a half inches (1 1/2″) or deeper. These issues are all considered standard wear and tear.
Burns, cuts, tears, stains, and other types of physical damage that occur due to owner misuse, improper cleaning, and/or inadequate foundational support.
Damage to the mattress handles. Per Zinus: ‘[Handles] are to be used only for adjustment purposes and are not intended to lift, turn or transport the product.
This warranty is exclusively extended to original owners that purchase their mattress from Zinus or an authorized Zinus retailer. Anyone who buys or acquires the mattress from the original owner or a non-authorized retailer will not be eligible for warranty coverage.
Delivery Details
Zinus ships mattresses to the contiguous U.S. only. All Zinus mattresses are compressed and vacuum-sealed for shipping. Zinus recommends removing the mattress from its box within one week of delivery. All deliveries are coordinated through FedEx Ground. All mattresses are delivered to the customer’s doorstep, and a signature is not required. All orders are processed within two to three business days. Purchasers will receive a tracking number via email once their order has finished processing. Zinus does not offer expedited shipping or White Glove delivery at this time. Zinus does not offer old mattress removal with any orders.
Casper offers a 100-night sleep trial for all mattress models. This trial does not require a break-in period of any kind. Owners may elect to return the mattress and receive a full refund, including shipping fees, at any point during the sleep trial. Casper will arrange for couriers to come pick up the mattress from the owner’s home, at which time it will either be recycled or donated to charity. Customers who purchase their Casper mattress from Amazon.com will also be eligible for the 100-night trial.
Warranty
Casper offers a 10-year non-prorated warranty. Warranty coverage kicks in on the original mattress purchase date. During the warranty coverage period, Casper will replace or repair a defective mattress. Casper will cover fees for returning a defective mattress to the company, but the owner will be required to pay fees for having a replaced or repaired mattress shipped back to them. Mattress owners must pay the difference if their defective mattress is replaced with an upgrade model. In the event that a defective mattress is repaired or replaced with the same mattress model, the original warranty coverage will continue. If the mattress is replaced with an upgrade, then a new warranty will be issued beginning on the date that the upgrade is purchased.
The warranty will be voided if the owner does not provide a proper foundation to support the mattress. According to Casper, proper foundation options include the following: a foundation and modern box spring with wooden slats that are no more than 4 inches apart; a flat platform bed; or a slatted base made of wood with slats that are no more than 4 inches apart.
The warranty will cover body impressions in the sleep surface measuring 1 inch or deeper despite proper use and handling. The warranty also covers physical flaws that cause mattress materials to split or crack, and manufacturing defects associated with the mattress cover. The warranty does not cover impressions measuring less than 1 inch deep. Additional defects not covered under warranty include physical damage such as burns and stains, and comfort issues that arise due to normal wear and tear or changes in the owner’s mattress preferences.
The warranty is exclusively available to the original purchaser of the mattress. Anyone who purchases or acquires this mattress second-hand does so ‘as is’, and will not be eligible for warranty coverage.
Delivery Details
Casper ships free to anywhere in the contiguous U.S. Charges apply to Hawaii, Alaska and parts of Canada. White Glove Delivery is available at an additional charge for the Casper, as well as the Casper Hybrid and Casper Essential. This service is free for Casper Wave and Casper Wave Hybrid orders. Old mattress removal is offered with White Glove delivery. The Wave and Wave Hybrid qualify for free White Glove delivery, while orders for the Casper, Casper Hybrid, and the Essential will incur additional White Glove charges.
UPS Ground is used for Casper deliveries. Most customers will receive their Casper mattress within two to five business days of the original purchase, depending on their location.
