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

Siena Memory FoamvsCasper Original Hybrid

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

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Siena Memory Foam$300 OffCasper Original HybridCheck current deal.

Siena Memory Foam

by Siena · Memory Foam

$300 Off

10 years · 180-night trial

Casper Original 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 Original Hybrid

Twin$1,095

Twin XL$1,395

Full (Double)$1,395

Queen$1,495

King$1,895

California King$1,895

Essential information

	Siena Memory Foam	Casper Original 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	Our signature design, now with springs for added support. Made with two layers of premium foam, plus foam-encased springs: Breathable Polyurethane Foam Zoned 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 Original 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	Your order will typically arrive in 2-5 business days. We ship via UPS Standard from warehouse partners.

Firmness & feel

	Siena Memory Foam	Casper Original 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 Original 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 Original Hybrid
Layers	Responsive Memory Foam, Body Supporting Layer, Foundational Foam	Breathable Polyurethane Foam, Zoned 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.	Planet-friendly textiles. Up to 57 recycled bottles in each cover.
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.	Stay cool all night with the innovative cooling system. AirScape: A top layer of perforated breathable foam helps reduce heat. Tiny holes move hot air and body heat away. A layer of Airscape perforated breathable foam increases airflow and circulates air so you don't get too hot at night. Resilient springs add a little lift, support, and airflow to the mattress of your dreams.
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.	Premium foam conforms to your body to relieve pressure. Zoned Support provides a layer of memory foam with 3 ergonomic zones to help align your spine and provide more relief. A firmer border provides edge support to help you get in and out of bed easily. Get all-night comfort with the innovative support system. Zoned Support: 3 zones of targeted support for proper spinal alignment. Softer foam around the shoulders provides more relief to the upper body. Firmer foam under the hips, waist, and lower back helps align your spine.
Posts	–	–

Size & weight

	Siena Memory Foam	Casper Original Hybrid
Available sizes	Twin, Twin XL, Full (Double), Queen, King, California King	Twin, Twin XL, Full (Double), Queen, King, California King
Dimensions	Twin: 10 "	Twin: 11 "
Twin weight (kg)	42	53
Twin XL weight (kg)	45	57
Full (Double) weight (kg)	59	76
Queen weight (kg)	68	91
King weight (kg)	85	112
California King weight (kg)	85	114

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 Original Hybrid

What is the firmness level of CasperOriginal Hybrid?

Both the Casper Original and the Original Hybrid have a medium feel, rating around 5 on the 10-point firmness scale. These models are slightly thicker than the average mattress, standing at 11 inches.

Is Select Hybrid the same as Original Hybrid?

The Casper Select mattress is designed to be a similar version of the popular Casper Original, but it is exclusively sold through Costco, meaning it can only be purchased with a Costco membership. The all-foam Casper Select is engineered to provide both support and pressure relief to sleepers.

How many coils does a Casper original hybrid have?

The Casper Original Hybrid mattress features at least 600 coils (in a queen size, as per the company's representative). It offers a feel that is somewhere between medium and medium-firm, with a cradling effect that is slightly more pronounced than the all-foam option but less fluffy than the Nova Hybrid.

Wrap up

Thank you for checking out this Siena Memory Foam vs Casper Original 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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