Luxurious bedroom setup with the Ashley Sierra Sleep 12 Inch Plush Mattress and an adjustable power base.

Sierra Sleep 12 Inch Plush Mattress by Ashley on an adjustable power base for customized comfort.

Sierra Sleep 12 Inch Plush Mattress by Ashley shown with a matching foundation for stable sleep support.

Ashley Sierra Sleep 12 Inch Plush Mattress shown with its compact mattress-in-a-box shipping carton.

Top view of Ashley Sierra Sleep 12 Inch Plush Mattress on a stylish tufted bed with decorative pillows.

Close-up of the breathable quilted top of a Sierra Sleep 12 Inch Plush Mattress with a book for scale.

Modern bedroom featuring the Sierra Sleep Limited Edition 12 Inch Plush Mattress on a sleek grey bed frame.

Ashley Sierra Sleep 12 Inch Plush Mattress inclined on an adjustable base for reading or elevated sleeping.

Detailed corner view of the Ashley Sierra Sleep 12 Inch Plush Mattress on a solid wood bed frame.

Cross-section of Sierra Sleep 12 Inch Plush Mattress showing pressure-relieving gel and support layers.

Sierra Sleep Limited Edition 12 Inch Plush Mattress by Ashley

Plush Medium Firm Pillow top Memory foam Hybrid

Sierra Sleep Limited Edition 12 Inch Plush Mattress by Ashley

$475.00

$749.00

Save $274.00

Brand:

Ashley

i Size Guide

$475.00

Only 15 left in stock

Free USA Wide Delivery

10 Year Warranty

Advanced Technology

The Sierra Sleep Limited Edition 12 Inch Plush Mattress is the kind of bed you fall into and instantly think, “okay… yep, this is the one.”

It has that soft, cloud-like sleep surface on top, but it doesn’t feel flimsy or sink-you-into-a-hole.

The top is a quilted foam cover with a stretchy knit feel, so it’s comfortable right away, not stiff.

Under that, the pressure-relieving comfort layers do what you want a plush mattress to do, i.e., give you that body contouring comfort and take the edge off pressure points, especially around the shoulders and hips.

What customers like is that it still has structure underneath. The wrapped coils and edge support help it feel stable when you roll around or sit on the side, and the motion transfer reduction part is a real plus if you share the bed.

It also shows up as a mattress-in-a-box delivery, so setup is pretty straightforward, and it’s adjustable base compatible, which is nice if you already have one or plan to.

Overall, it’s a cozy, plush feel with enough support to keep you comfortable night after night.

Pressure-relieving support for side sleepers

Foam + gel memory foam layers are designed to ease pressure points at the shoulders and hips.

Plush comfort feel

A soft, cushiony surface that feels inviting the moment you lie down.

Motion control + edge stability

Wrapped coils and steel-encased edges help reduce motion transfer and create a steadier sleep surface from edge to edge.

Adjustable-friendly + easy setup

Compatible with adjustable bases and ships compressed for convenient delivery.

Key Mattress Benefits

8 Layers
Of Cooling
Comfort

Moves with your body for a comfortable, non-restrictive feel from the very first night.

Work together to create a soft, breathable comfort layer that keeps the sleep surface feeling fresh.

Adds an immediate plush sensation right at the surface so you feel the cushioning as soon as you lie down.

Targets different areas of the body to deliver the right amount of give where you need it most, like the shoulders and hips.

Helps regulate surface temperature while contouring to the body to ease pressure buildup overnight.

Each coil moves independently to reduce motion transfer, so a restless partner is less likely to disturb your sleep.

Reinforces the perimeter of the mattress so you get a stable, usable sleep surface all the way to the edges.

Anchors the entire mattress with a firm, durable foundation that supports all the comfort layers above it.

DISCOVER WHY BUYING WITH

CLOUDY MATTRESS IS THE SMARTER CHOICE

From better sleep support to trusted quality, Cloudy Mattress gives you more value for your money.

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HAVE QUESTIONS?

WE'VE GOT ANSWERS

Designed for deep comfort and better rest, so you wake up refreshed and ready for the day

Yes. This model is best for side sleepers and highlights pressure-relieving support from its foam and gel memory foam comfort layers.

Yes. It ships as a mattress in a box for quick, convenient setup.

Allow up to 48 hours for the mattress to fully expand after opening.

It’s listed as Plush Comfort, designed for an extra-soft, cushiony feel.

It is noted as compatible with adjustable bases, and it can typically be paired with a supportive foundation or platform frame. If you’re unsure, match it with a sturdy base and follow the retailer/manufacturer setup guidance.

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Have Questions ?

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Sierra Sleep Limited Edition 12 Inch Plush Mattress by Ashley