Sierra Sleep by Ashley
Sierra Sleep Elite Springs Plush Mattress
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The Elite Springs Plush is Sierra Sleep's answer for anyone who wants a genuinely soft mattress that still feels supported underneath: a coil based bed built for sleepers who miss the give of a traditional innerspring but don't want it to sag in the middle. If your current mattress has gone soft and saggy where you sleep, this replaces that feeling with a plush surface that still holds its shape night after night.
How It's Built
The Elite Springs Plush (Ashley model M406) opens with a quilted, high density foam cover stitched for a soft hand feel, then layers in high density response memory foam and an added plush foam layer to cushion the shoulders and hips. Underneath, a system of individually wrapped coils does the actual work of supporting you: 416 of them in the Twin size, scaling up as the mattress gets larger, with two extra perimeter rows of 13 gauge coils (what Ashley calls Ashley Edge, steel encased) reinforcing the border so the edge doesn't collapse when you sit down to tie your shoes. A high density foam base sits under the coil unit to keep the whole assembly stable. At roughly 14 inches thick, it has a substantial profile without turning into a step stool.
Feel and Support
Because each coil compresses on its own instead of moving as a connected unit, the mattress does a better job containing motion than most traditional spring beds, worth knowing if you share it with a partner who gets up early or a dog that doesn't. The coil layer also lets air move through the mattress in a way a solid slab of foam can't, so it tends to sleep a little cooler even with memory foam in the top layers. Expect a genuinely plush feel here: this sits on the soft end of the Sierra Sleep lineup, not a medium mattress that just leans soft.
Who It's Best For
- Side sleepers who want real cushioning at the shoulder and hip
- Back sleepers who prefer some give instead of a flat, hard surface
- Couples who want a plush feel without one partner's movement waking the other
- Anyone replacing a worn out spring mattress who still wants coils underneath, not all foam
It's probably not the right call if you sleep mostly on your stomach, if you run hot and want an actively cooling cover rather than passive airflow, or if you already know your hips need a firmer surface to stay level. Sierra Sleep builds firmer options in the same family if that sounds more like you.
Sizes and Fit
The Elite Springs Plush is available in Twin, Full, and Queen, and it sits well on platform beds, standard foundations, and adjustable bases alike. It's backed by a 10 year non prorated warranty, standard for this Sierra Sleep tier.
Descriptions only tell you so much about what "plush" feels like under your own body. Come lie down on the actual mattress at one of our Kentucky showrooms and feel where your hips and shoulders settle before you decide.
What makes this mattress different
Genuinely plush, not medium-that-leans-soft
This sits on the soft end of the Sierra Sleep lineup, built for sleepers who want real give at the shoulders and hips rather than a mattress labeled plush that still feels medium.
416 wrapped coils at the core
An individually wrapped coil system, 416 coils in the Twin size and more in each larger size, gives the plush comfort layers something firm and responsive to rest on so the mattress doesn't bottom out.
Ashley Edge perimeter reinforcement
Two extra rows of 13 gauge, steel encased coils run the border of the mattress, so the edge holds your weight when you sit down to get dressed instead of collapsing under you.
Quilted cover with a soft hand feel
A high density quilted foam cover sits directly under the sheets, adding a first layer of cushioning before you even reach the memory foam underneath.
Response memory foam comfort layer
A layer of high density response memory foam plus an added plush foam layer cradle the shoulders and hips without holding a lasting body impression once you move.
Coils that isolate motion
Because each coil compresses on its own instead of moving as a connected unit, movement on one side of the bed is much less likely to travel across to a partner or a pet.
About 14 inches, standard sheets fit fine
A substantial profile that still works with standard sheets and sits well on platform beds, standard foundations, and adjustable bases alike.
10 year non prorated warranty
Backed by Sierra Sleep's standard 10 year non prorated warranty for this tier of the lineup.
A soft top over coils built to hold their edge
The Elite Springs Plush runs a classic plush hybrid recipe. From the top down, the build goes a quilted, high density foam cover, then a layer of high density response memory foam, then an added plush foam layer, and under all of that, a full system of individually wrapped coils. Every coil moves on its own, so the surface contours to your shoulders and hips instead of pushing back as one solid unit.
The coil unit is reinforced at the edge: two extra perimeter rows of 13 gauge, steel encased coils, what Ashley calls Ashley Edge, keep the border from collapsing when you sit on the side of the bed. In the Twin size that core runs 416 individually wrapped coils, with the count scaling up as the mattress size grows. A high density foam base sits underneath the coil unit to keep the whole assembly stable over time. The result is a mattress that reads soft at the surface and structured underneath, not soft all the way through.
See the full Sierra Sleep lineup →Built for side and back sleepers who want real cushioning
Side sleepers: the plush comfort layers cushion the shoulder and hip, the two pressure points a firmer mattress tends to dig into.
Back sleepers who like some give: enough softness at the surface to feel cushioned, with the coil system underneath keeping the hips from sinking too far.
Couples sharing a bed: because each coil compresses independently, one partner shifting or getting up is much less likely to wake the other, even on a mattress this soft.
Anyone replacing an old spring mattress: if you liked having coils underneath but want the sagging gone, this keeps the coil feel while adding real cushioning on top.
Lighter sleepers who want extra plushness: less body weight means you won't compress the comfort layers as fully, so the plush feel reads even softer.
Probably not for you if: you sleep mostly on your stomach and need a firmer surface to keep your hips level, or you run hot and want an actively cooling cover rather than the passive airflow the coils provide.
Specifications
| Height | 14 in |
|---|---|
| Feel | Plush |
| Firmness | Plush, soft end of the Sierra Sleep lineup |
| Construction | Quilted high density foam cover, high density response memory foam, plush foam layer, individually wrapped coil system (416 coils in the Twin) with Ashley Edge perimeter reinforcement, high density foam base: about 14 inches total. |
| Cooling | Individually wrapped coils let air move through the mattress, so it sleeps a bit cooler than an all foam design even with response memory foam in the comfort layers. |
| Motion isolation | Good for a plush mattress: each coil compresses independently, so movement on one side is far less likely to transfer across to a partner or a pet. |
| Warranty | 10 year non prorated warranty |
Frequently asked questions
How firm is the Sierra Sleep Elite Springs Plush?
It's genuinely plush, the soft end of the Sierra Sleep lineup rather than a medium mattress that just leans soft. The quilted cover, response memory foam, and an added plush foam layer sit over a coil system, so you get real cushioning at the shoulders and hips with support underneath rather than a mattress that just sinks.
Is this a memory foam mattress or an innerspring?
It's a hybrid: foam comfort layers over a full system of individually wrapped coils, 416 of them in the Twin size and more in each larger size. You get the contouring of memory foam on top with the support and airflow of coils underneath.
Will this mattress sleep hot?
The coil layer allows air to move through the mattress in a way an all foam bed can't, so it tends to sleep a little cooler than a solid slab of memory foam even with foam layers on top. It doesn't have an actively cooling cover, so if you run especially hot, ask our floor team about options built specifically for temperature.
How does it handle motion if I share the bed?
Well for a plush mattress. Because each coil compresses on its own instead of moving as a connected unit, movement on one side of the bed is much less likely to travel across to a partner or a pet on the other side.
What keeps the edge of the mattress from collapsing when I sit down?
Two extra perimeter rows of 13 gauge, steel encased coils reinforce the border, what Ashley calls Ashley Edge. It's built specifically so the edge holds your weight instead of giving way when you sit to get dressed or put on shoes.
What sizes does the Elite Springs Plush come in?
Twin, Full, and Queen. All three sit well on platform beds, standard foundations, and adjustable bases.
What's the warranty on this mattress?
A 10 year non prorated warranty, standard for this tier of the Sierra Sleep lineup.
Does this mattress come with an at-home trial?
No. Sierra Sleep mattresses don't include an at-home trial, so we won't tell you otherwise. The honest way to know if a plush feel is right for you is to try it in person: all of our Kentucky showrooms carry this mattress on the floor, so you can lie down in your normal sleeping position before you buy instead of guessing at home.
Buy it from people you can actually visit
- Free local delivery To your home across Central & Eastern Kentucky.
- Free setup We place and set up your new bed in the room.
- Free old-mattress haul-away The old one goes out the same day the new one comes in.
Independently owned in Kentucky since 2012. Walk in any day (no appointment) and someone who actually knows the floor will help you find the right fit.
Still deciding?
Try it in person at any Kentucky showroom
Walk into any Mattress Overstock location, lie down, and feel the difference yourself. No appointment, no pressure. Our team has over 100 years of combined mattress experience and we're here to help you find the right fit.
