🇺🇸 United States · Memory Foam vs Hybrid (coils and foam)

Siena Memory FoamvsCasper Nova Hybrid

Which one is best for you? Siena Memory Foam vs Casper Nova Hybrid - 2026 comparison by Vs Mattress

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Siena Memory Foam$300 OffCasper Nova HybridCheck current deal.

Siena Memory Foam

by Siena · Memory Foam

$300 Off

10 years · 180-night trial

Casper Nova Hybrid

by Casper · Hybrid (coils and foam)

Check current deal.

10 years · 100-night trial

Pricing by size

Siena Memory Foam

Twin$499

Twin XL$599

Full (Double)$649

Queen$699

King$799

California King$799

Casper Nova Hybrid

Twinn/a

Twin XL$1,795

Full (Double)$2,145

Queen$2,295

King$2,895

California King$2,895

Essential information

	Siena Memory Foam	Casper Nova Hybrid
Type	Memory Foam	Hybrid (coils and foam)
Launched	–	–
Brand	Siena	Casper
Made in	–	United States
Unique points	The Siena memory foam mattress has five layers of pure comfort: Soft and Comfy Cover Responsive Memory Foam Body Supporting Layer Foundational Foam Shift-Resistant Lower Cover	Those who want a plush top layer without sacrificing support and cooling. Made with three layers of premium foam, plus foam-encased springs: Breathable AirScape Polyurethane Foam Zoned Polyurethane Foam Contoured Memory Foam Durable Base of Polyurethane Foam with Encased Springs.
Video	–	Introducing Casper's Cooling Collection: Love Your Tomorrow.

Certifications & trial

	Siena Memory Foam	Casper Nova Hybrid
OEKO-TEX®	No	No
CertiPUR-US®	Yes	Yes
Certifications	CertiPur-US®	CertiPur-US®
Other certification info	–	–
Sleep trial	180 nights	100 nights
Warranty	10 years	10 years
Free shipping	–	–
Free returns	Yes	Yes
Pay later	Yes	No
Delivery info	FREE SHIPPING, Within 2 - 5 Business Days With No Contact Delivery	Fast, free shipping with every order. We ship in the United States and Canada from warehouse partners in each country. Additional fees apply for Hawaii and Alaska.

Firmness & feel

	Siena Memory Foam	Casper Nova Hybrid
One firmness fits all	No	Yes
Select your firmness	No	No
Adjustable firmness	No	No
Half and half firmness	No	No
Flippable / reversible	No	No
Firmness info	–	The best way to feel the Casper Nova Hybrid is to take advantage of our 100-night, risk-free trial. If you're looking for a mattress that can sustain more weight, or you want to be lifted more than cradled, then our hybrids are a great choice.

Construction & materials

	Siena Memory Foam	Casper Nova Hybrid
Layers	Responsive Memory Foam, Body Supporting Layer, Foundational Foam	Breathable AirScape Polyurethane Foam, Zoned Polyurethane Foam, Contoured Memory Foam, Durable Base of Polyurethane, Foam with Encased Springs.
Cover	Soft and Comfy Cover: Soft to touch and breathable to keep you cool and comfortable.	A super plush and stretchy top. This velvelvety-soft layer makes bedtime feel extra cozy. Knit fabrics stretch in 4 ways so you feel the full benefits of the layers below. The added pillow-like fabrics cradle your body and make you feel as if you were sinking into a cloud.
Machine-washable cover	No	No
Ergonomic handles	No	No
Comfort	Siena means comfort. Comfort that helps you forget about the worries of the day. Comfort that tells your body, “relax, it’s time to recharge”. Comfort that helps you enjoy a long, deep, and soul nourishing sleep.	Cooling helps keep you at the right temperature for your best. Two layers of perforated breathable foam help reduce heat. Plus every mattress saves up to 70 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. With a thin coating of cooling gel that adds a refreshing feel. This innovative cooling system is designed to help keep you cool all night. Second layer of AirScape helps prevent overheating. These air channels allow heat to escape. Resilient springs increase airflow.
Support	Some people love super soft mattresses. Some people love a rock hard one. Most people are somewhere in the middle. That’s why the Siena is a medium firm mattress, comfortable to sleep on, but also firm enough to correctly support your body.	Superior plushness without sacrificing support. More support where you need it most with the plushness you crave. Zoned Support Pro offers 7 zones of targeted support for healthy spinal alignment, softer foam around the shoulders provides more relief to the upper body and multiple ergonomic points under shoulders, hips, waist and lower back. A firmer border provides edge support to help you get in and out bed easily. Premium AirScape foam conforms to your body to relieve pressure. This has a plush, velvety soft feel. A second layer of supportive foam has 3 ergonomic zones to help align your spine and provide more relief. A third layer with Zoned Support Pro relieves pressure under the shoulders, and provides more support under the waist, lower back, and hips to align your spine. These zones reinforce support from the layers above. Fabric-wrapped springs provide active support and a little lift.
Posts	–	–

Size & weight

	Siena Memory Foam	Casper Nova Hybrid
Available sizes	Twin, Twin XL, Full (Double), Queen, King, California King	Twin XL, Full (Double), Queen, King, California King
Dimensions	Twin: 10 "	Twin: 12 "
Twin weight (kg)	42	–
Twin XL weight (kg)	45	62
Full (Double) weight (kg)	59	84
Queen weight (kg)	68	89
King weight (kg)	85	125
California King weight (kg)	85	127

FAQs

Siena Memory Foam

What are Siena mattresses made of?

The Siena Memory Foam Mattress is made with a tri-layer design that includes gel-infused memory foam and two different types of polyfoam. The foam used in the mattress is CertiPUR-US certified, meaning it's free from harmful chemicals and additives.

Can you flip the Siena mattress?

The Siena mattress is not designed to be flipped. It has a high-density base foam layer at the bottom, and flipping it would compromise its pressure-relieving properties.

How long will the Siena mattress last?

The Siena mattress, being a budget mattress, is not made with as many high-quality materials and is therefore expected to last about five years. This is approximately half the lifespan of a typical mattress.

Casper Nova Hybrid

Is the Casper Nova Hybrid mattress good?

Yes, the Casper Nova Hybrid mattress is considered a high-quality product. It boasts a sophisticated construction and a Zoned Support system that caters to a variety of sleeping positions. However, it is a bit on the expensive side, which might not suit all budget ranges.

Does the Casper Nova Hybrid sleep hot?

No, the Casper Nova Hybrid is designed to provide a cooler sleep experience. It incorporates ventilated foam and coils that enhance airflow throughout the mattress. Despite the soft foam on top, it should not retain excessive heat.

Does Casper Nova Hybrid come in a box?

Yes, the Casper Nova Hybrid is a bed-in-a-box mattress, meaning it will be delivered to you compressed and rolled up in a box.

Wrap up

Thank you for checking out this Siena Memory Foam vs Casper Nova Hybrid 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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