Sierra Sleep by Ashley
Sierra Sleep Limited Edition Plush 3.0 Mattress
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The verdict: if you want a genuinely plush, sink in a little top layer that still hands you real coil support underneath, the Sierra Sleep Limited Edition Plush 3.0 is built for that exact combination, and it does not ask you to choose one over the other.
This is Ashley's M451 platform, the third generation of the brand's long running Limited Edition Plush lineup. Ashley starts with a Hyper Cool luxury 4 way stretch knit cover, the kind of surface that moves with you instead of resisting you. Underneath, the comfort stack runs high density quilt foam over a layer of high density gel memory foam, then a super soft high density support foam that eases the transition down to the coil unit. That coil unit is a power packed wrapped coil system with a reinforced Ashley Edge, so the perimeter holds its shape when you sit on the side of the bed instead of collapsing under you. The whole build sits at roughly 13.5 inches, and the Queen weighs in around 95 pounds, which tells you there is real material in those comfort layers, not just air.
Feel and support
Plush means plush here. Your shoulders and hips settle into the quilt foam and gel memory foam before the wrapped coils take over and keep your spine level. Individually wrapped coils flex independently of each other, so the mattress contains movement reasonably well when a partner shifts or gets up, though a hybrid like this will still telegraph a bit more motion across the bed than a dense all foam design would. That is the honest trade you make for coil based airflow and a more responsive, less trapped in feel than foam alone.
Who it suits
- Side and combination sleepers who want real pressure relief at the shoulder and hip without losing spine alignment
- Couples who like the idea of a hybrid: coil support with a genuinely soft top, not a firm bed with a thin pillow top
- Anyone replacing an old, worn out plush mattress who wants that same cushioned feel with fresh materials and a stronger edge
- Sleepers who run warm and want airflow from a coil layer rather than a slab of dense foam trapping heat against the mattress surface
Who should skip it
If you are a committed back or stomach sleeper who wants to feel like you are resting on top of the mattress rather than settling into it, this plush comfort level will likely feel too soft for your lower back. If you and a partner are both light sleepers who wake at the smallest shift on the other side, an all foam bed will isolate motion more completely than any coil based hybrid, this one included.
Sizing
The Limited Edition Plush 3.0 comes in Twin, Twin XL, Full, Queen, King, and California King, all built to the same layered construction, so the feel is consistent whether you are furnishing a guest room or a primary bedroom. It pairs cleanly with a standard foundation, platform bed, or adjustable base.
Numbers on a spec sheet only tell you so much about plush. Come lie down on this exact mattress at one of our Kentucky showrooms, in your own sleep position, before you decide. That is the only real way to know if this Ashley build is the one for your bedroom.
What makes this mattress different
A genuinely plush comfort layer
High density quilt foam and gel memory foam let your shoulders and hips settle in, the cushioned feel the Limited Edition Plush line is built around, not a firm bed with a thin topper.
Hyper Cool stretch knit cover
A luxury 4 way stretch knit cover moves with your body instead of resisting it, and helps keep the surface from feeling stagnant or hot to the touch.
Power packed wrapped coil support
A full coil unit underneath the foam keeps your spine level even as the top layer softens around you, so plush does not mean unsupported.
Reinforced Ashley Edge
A reinforced perimeter around the coil unit holds its shape when you sit on the side of the bed, instead of caving in the way older plush mattresses tend to at the edge.
Third generation build
The M451 platform is the latest version of Ashley's long running Limited Edition Plush line, built on the same plush comfort promise with updated materials.
Real weight, real materials
A Queen weighs in around 95 pounds, a sign of how much foam and coil is actually packed into the comfort layers rather than a lightweight build padded out with air.
Coil based airflow
Because support comes from wrapped coils rather than a slab of dense foam, air moves through the mattress more freely than an all foam design of similar softness.
Consistent across every size
Twin through California King share the same layered construction, so the feel in a guest room matches the feel in a primary bedroom.
A plush comfort stack over a full coil support system
The Limited Edition Plush 3.0 starts at the surface with a Hyper Cool luxury 4 way stretch knit cover, a cover built to move with you rather than fight you. Below that sits the comfort stack: high density quilt foam first, then a layer of high density gel memory foam, then a super soft high density support foam that eases the transition down to the coil unit.
The coils are a power packed wrapped coil system, individually wrapped so each one responds to where weight is actually resting rather than the whole surface moving as one unit, with a reinforced Ashley Edge around the perimeter so the sides of the bed hold their shape instead of collapsing when you sit down to put on shoes. The full profile runs about 13.5 inches, and a Queen size weighs approximately 95 pounds, real material weight rather than a lightweight build stretched thin.
This is Ashley's M451 platform, the third generation of the Limited Edition Plush line, built to deliver a genuinely soft top layer without giving up the spine support a coil system provides.
See the full Sierra Sleep lineup →Built for sleepers who want plush on top and coils underneath
Side sleepers: the quilt foam and gel memory foam layers cushion the shoulder and hip, the two pressure points a side sleeper needs relief at most.
Combination sleepers: the plush top gives enough that shifting from your side to your back through the night does not fight you, while the coil layer keeps your spine from sagging out of line in either position.
Couples who disagree on firm versus soft: a wrapped coil hybrid with a genuinely plush top is a reasonable middle ground when one partner wants cushion and the other wants real support underneath it.
Warm sleepers: the Hyper Cool cover and the airflow a coil system allows help this plush bed sleep cooler than an all foam mattress of similar softness, though it is not a dedicated cooling mattress.
People replacing an old plush mattress: if you already know you like a soft, cushioned bed and just need fresh materials and a stronger edge than your last one had, this is a straightforward upgrade.
Probably not for you if: you are a committed back or stomach sleeper who wants a firmer, more supportive surface, or you and a partner are light sleepers who wake at the smallest movement, since a coil hybrid will always transfer a bit more motion than an all foam design.
Specifications
| Height | 13.5 in |
|---|---|
| Feel | Plush |
| Firmness | 3 out of 10 (10 = firmest) |
| Construction | Hyper Cool 4-way stretch knit cover over high-density quilt foam, high-density gel memory foam, and high-density support foam, on a power-packed wrapped coil system with reinforced Ashley Edge: 13.5 inches total. |
| Cooling | The Hyper Cool stretch knit cover plus the natural airflow of a wrapped coil base keep this plush build from trapping heat the way a dense all-foam mattress can. |
| Motion isolation | Fair. Individually wrapped coils respond independently, but a coil-based hybrid still carries a bit more motion across the bed than an all-foam design. |
| Warranty | 10-year non-prorated warranty |
Frequently asked questions
What does "plush" mean on the Limited Edition Plush 3.0?
It means the top layer is genuinely soft. Your shoulders and hips settle into the quilt foam and gel memory foam instead of resting on top of a firm surface. Underneath that give, a full coil system keeps your spine from sagging out of line, so plush here describes the feel of the surface, not a lack of support.
What is the Limited Edition Plush 3.0 actually made of?
From the top down: a Hyper Cool luxury 4 way stretch knit cover, then high density quilt foam, a layer of high density gel memory foam, and a super soft high density support foam that transitions down to a power packed wrapped coil system with a reinforced Ashley Edge around the perimeter. The full profile runs about 13.5 inches.
Is this a hybrid mattress or all foam?
Hybrid. The comfort layers are foam, but the support underneath comes from individually wrapped coils, not a foam core. That gives you plush cushioning on top with more airflow and a more responsive feel than an all foam mattress of similar softness.
Who is the Limited Edition Plush 3.0 best suited for?
Side and combination sleepers who want real pressure relief at the shoulder and hip, and couples who want a hybrid middle ground between a soft top and firm support. If you strictly sleep on your back or stomach and prefer a firmer feel, this plush comfort level will likely feel too soft for you.
Does this mattress sleep hot?
The Hyper Cool stretch knit cover and the airflow that comes naturally from a wrapped coil system help keep the surface from trapping heat the way a dense all foam mattress can. It is not a dedicated cooling mattress with phase change materials or gel infused foam throughout, but the construction works in your favor if you run warm.
What sizes does the Limited Edition Plush 3.0 come in?
Twin, Twin XL, Full, Queen, King, and California King. Every size shares the same layered construction, so the feel is consistent whether it is going in a guest room or a primary bedroom.
Can I put this mattress on an adjustable base?
Yes. The coil and foam construction works on a standard foundation, a platform bed, or an adjustable base without any special setup.
Does the Limited Edition Plush 3.0 include an at home trial?
No. Sierra Sleep mattresses do not come with an at home trial period. The honest way to know if a plush hybrid like this is right for you is to lie on it yourself, in your own sleep position, on our showroom floor before you buy, rather than guess at home and hope.
Can I see this mattress in person near me?
Yes, and with a mattress that is genuinely the better way to decide. Mattress Overstock is a Kentucky owned company with showrooms in Lexington, Georgetown, Somerset, London, and Richmond. Come lie on this exact Limited Edition Plush 3.0 before you commit to it.
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.
