Siena Memory FoamvsCasper Element

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

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Siena Memory Foam$300 OffCasper ElementCheck current deal.

Siena Memory Foam

by Siena · Memory Foam

$300 Off

10 years · 180-night trial

Casper Element

by Casper · 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 Element

Twin$395

Twin XL$445

Full (Double)$545

Queen$595

King$795

California King$795

Essential information

	Siena Memory Foam	Casper Element
Type	Memory Foam	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	We made an expensive mattress that's not expensive. The sweet spot between superior comfort and serious value. It's a premium mattress in a streamlined design. 2 layers of polyurethane foam: Breathable Top Foam Durable Support Foam.
Video	–	Introducing Casper's Cooling Collection: Love Your Tomorrow.

Certifications & trial

	Siena Memory Foam	Casper Element
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	We ship via UPS Standard in the United States and Canada from warehouse partners in each country. In parts of New York City, Los Angeles, and San Francisco, we offer same-day courier delivery. Additional fees may apply for HI, AK, and certain areas of Canada. Terms and conditions apply.

Firmness & feel

	Siena Memory Foam	Casper Element
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	–	When we designed the Casper Element, we knew we had to deliver lasting comfort at an unbeatable price. It borrows elements from our signature mattress to promise coolness and support in a more cost-efficient design.

Construction & materials

	Siena Memory Foam	Casper Element
Layers	Responsive Memory Foam, Body Supporting Layer, Foundational Foam	Breathable Top Foam, Durable Support Foam.
Cover	Soft and Comfy Cover: Soft to touch and breathable to keep you cool and comfortable.	Planet-friendly textiles. Up to 9 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.	A layer of AirScape perforated breathable foam increases airflow and circulates air so you don't get too hot at night. The innovative cooling system designed to help keep you cool all night. AirScape: A top layer of perforated breathable foam helps reduce heat. Tiny holes move hot air and body heat away.
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. The durable base is engineered to prevent sinking and sagging while supporting your whole body. Balanced softness and support.
Posts	–	–

Size & weight

	Siena Memory Foam	Casper Element
Available sizes	Twin, Twin XL, Full (Double), Queen, King, California King	Twin, Twin XL, Full (Double), Queen, King, California King
Dimensions	Twin: 10 "	Twin: 10 "
Twin weight (kg)	42	41
Twin XL weight (kg)	45	43
Full (Double) weight (kg)	59	57
Queen weight (kg)	68	86
King weight (kg)	85	87
California King weight (kg)	85	87

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 Element

Is the Casper element soft or firm?

The Casper Element is an all-foam mattress with two layers of polyfoam. It has a medium firm feel, rating 6 out of 10 on the firmness scale, which is within the range most sleepers prefer.

How long does Casper Element take to inflate?

It is recommended to allow a full day for your Casper mattress to inflate to its full capacity, although it is safe to sleep on immediately after unboxing.

What is Casper element?

The Casper Element is an all-foam mattress featuring two layers of polyfoam. It has a medium firm feel, rating 6 out of 10 on the firmness scale, which is within the range most sleepers prefer. Its comfort system includes a 3-inch layer of proprietary polyfoam known as AirScape.

Wrap up

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