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Casper OriginalvsPolysleep Zephyr

Which one is best for you? Casper Original vs Polysleep Zephyr - 2026 comparison by Mattress Battles

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Casper OriginalCheck current deal.Polysleep ZephyrCheck current deal.

Casper Original

by Casper · Memory foam

Check current deal.

10 Years · 102 Nights-night trial

Polysleep Zephyr

by Polysleep · All Foam

Check current deal.

10 Years · 100 Nights-night trial

Pricing by size

Casper Original

Twin$995

Twin XL$1,145

Full$1,445

Queen$1,495

King$1,945

California King$1,945

Polysleep Zephyr

Twin$2,045

Twin XL$2,145

Full$2,345

Queen$2,545

King$2,945

California King$2,945

Essential information

	Casper Original	Polysleep Zephyr
Type	Memory foam	All Foam
Launched	2014	2016
Brand	Casper	Polysleep
Made in	Undisclosed	Canada
Unique points	The Casper Original is good for sleepers of all kinds who want both support and cooling. Three layers of construction: Breathable AirScape™ Polyurethane Foam Zoned Memory Foam Durable Polyurethane Support Foam	The Zephyr Mattress is made of 5 layers of polyurethane foam: GelFlex Plus Premium Memory Foam Topper Ventilated Viscoelastic Hybrid Foam Antimicrobial Foam Proprietary Support Frame Supportive Foam Base.
Video	Making the Original Casper Mattress Even Better	–

Certifications & trial

	Casper Original	Polysleep Zephyr
OEKO-TEX®	No	No
CertiPUR-US®	Yes	Yes
Certifications	CertiPur-US®	CertiPur-US®
Other certification info	–	–
Sleep trial	102 Nights nights	100 Nights nights
Warranty	10 Years	10 Years
Free shipping	–	–
Free returns	Yes	Yes
Pay later	Yes	Yes
Delivery info	We ship via UPS Standard in the United States and Canada from warehouse partners in each country. Additional fees may apply for Northwest Territories, Yukon, and Nunavut. Terms and conditions apply.	We ship via UPS Standard in the USA and Canada directly from our warehouse to your door. By doing this we cut out 3rd party distribution methods, lowering our carbon footprint. We offer free shipping and free returns in Canada. For the Northwest Territories, Yukon, and Nunavut, please note that there will be an added charge for shipping.

Firmness & feel

	Casper Original	Polysleep Zephyr
One firmness fits all	Yes	Yes
Select your firmness	No	No
Adjustable firmness	No	No
Half and half firmness	No	No
Flippable / reversible	No	No
Firmness info	Experience our most popular mattress with award-winning comfort and a signature "just right" feel. The perfect balance of support and pressure relief ensures your comfort throughout the night, while cooling technology keeps you at the ideal temperature for restful sleep.	The Zephyr 2.0 mattress combines memory foam comfort with exceptional edge support, ensuring a balanced and stable sleep experience. Its dense foam layer enhances firmness and provides true support around the edges for a restful night's sleep.

Construction & materials

	Casper Original	Polysleep Zephyr
Layers	Breathable AirScape™ Polyurethane Foam, Zoned Memory Foam, Durable Polyurethane Support Foam.	GelFlex Plus Premium Memory Foam Topper, Ventilated Viscoelastic Hybrid Foam, Antimicrobial Foam, Proprietary Support Frame, Supportive Foam Base.
Cover	–	Our Organic Nanobionic cover is made with 88% Polyester, 1% Spandex and 11% Organic Cotton. Using Nanobionic technology paired with organic fibres, the cover redirects your bodies infrared rays to recharge your body faster and more efficiently, resulting in a better quality sleep. The eco friendly material that is grown without pesticides, insecticides, herbicides or other chemicals. This offers a healthy solution to consumers who have allergies, are chemically sensitive or those who prefer a soft, healthy and natural product!
Machine-washable cover	No	Yes
Ergonomic handles	No	No
Comfort	Casper mattresses are specifically designed to sleep cool. We put a lot of R&D into how Casper mattresses perform throughout the night - like running thermal imaging tests and sweat tests. Our mattresses use a breathable comfort foam to offset the memory foam layered beneath it. This construction helps keep things nice and breezy and outrageously comfortable. Plus every mattress saves up to 57 recycled bottles from the environment. A top layer of proprietary perforated breathable foam helps reduce heat, the tiny holes move hot air and body heat away. This innovative cooling system is designed to help keep you cool all night.	Using organic cotton fibers and Nanobionic® Technology, the Zephyr Mattress transforms your natural body heat into regenerating infrared rays. The benefits of infrared rays on the body are widely recognized. It's been proven that they are very beneficial in the energetic and restorative processes of the human body. This advanced technology allows you to recover better, especially after heavy physical exertion. You'll wake up recharged and feeling great! Using GelFlex Plus, our premium memory foam topper is infused with gel particles. It cools you down when you're hot, and warms you up when you're cold. Breathable Hybrid Foam helps to regulate your body temperature. Our antimicrobial technology in the Antimicrobial Foam layer helps to reduce bacteria growth, and works as a protective shield against allergies.
Support	The durable base is engineered to prevent sinking and sagging while supporting your whole body. Premium AirScape™ foam conforms to your body to relieve pressure. Memory foam with 3 areas of Zoned Support™ help align your spine and relieve pressure. Softer under shoulders and firmer around the hips, waist and lower back.	The integrated support frame keeps your mattress from flattening when you sit on the edge, and reinforces the structure. This allows you to sleep right on the edge - maximizing your mattress surface. Targeted Zone Support: Your shoulders and hips need a different level of support, so we've adapted the density of our foam according to these areas of your body. Our foam is softer on the shoulder zone, to reduce the pressure felt from day-to-day activity. The hips and torso zone features firmer foam which provides better alignment for your spine.
Posts	The Casper Blog When we’re not making mattresses, we’re learning everything we can about the power of rest.… [Read more]	–

Size & weight

	Casper Original	Polysleep Zephyr
Available sizes	Twin, Twin XL, Full, Queen, King, Cal King	Twin, Twin XL, Full, Queen, King, Cal King
Dimensions	Twin: 11 "	Twin: 11.5 "
Twin weight (kg)	46	54
Twin XL weight (kg)	50	56
Full weight (kg)	67	70
Queen weight (kg)	79	77
King weight (kg)	101	79
California King weight (kg)	100	79

FAQs

Casper Original

Can I sleep on my Casper right away?

Casper mattresses are designed to be slept on immediately after they have fully expanded. Unlike some mattresses that may soften over time, it's typically your body that adjusts to the mattress.

Has Casper original changed?

The new version of the Casper Original is a medium firmness mattress. The previous version was slightly firmer and had two comfort layers, a zoned transition layer, and a bottom support layer. The new version has removed the second comfort layer and replaced the zoned transition foam with zoned memory foam.

How many years does a Casper mattress last?

While the lifespan of a mattress can typically range from 7 to 10 years, Casper asserts that their foam mattresses can endure up to 12 years. This duration extends well beyond the 100-day return policy, ensuring that you receive a good return on your investment.

Polysleep Zephyr

Does the Polysleep Mattress sleep hot?

The Polysleep mattress is engineered to maintain your body's temperature. It utilizes an open-cell foam that enhances air circulation, ensuring you stay cool during summer and warm during winter.

Where are your mattresses made?

The mattresses are conceptualized in Canada and responsibly produced in a leading factory in China, adhering to the highest industry quality standards. All materials are OEKO Tex Standard 100 and REACH Certified. Additionally, the foams have been inspected and tested by SGS, a globally recognized quality and compliance agency.

What is the warranty policy on mattresses?

All mattresses come with a 15-year Limited Warranty from the date of delivery. This warranty is applicable to products purchased directly from Noa and is non-transferable, extending only to the original purchaser.

Wrap up

Thank you for checking out this Casper Original vs Polysleep Zephyr mattress comparison. We have tried to compare all the necessary information to help you choose which mattress is the most suitable for you.

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