Sierra Sleep by Ashley keeps mattress shopping simple: familiar foam-and-coil designs, boxed delivery, and prices that stay well below many premium brands. We compared four models across support, cooling, pressure relief, motion isolation, responsiveness, edge support, and durability. The Peak 2.0 and Comfort Plus are the easiest recommendations for most sleepers, while the softer Chime Hybrid and firmer Chime Elite 2.0 suit more specific comfort preferences.
Table of Contents
- Sierra Sleep Models at a Glance
- Which Models Stood Out?
- How the Four Mattresses Compare
- How We Evaluated Each Mattress
- Sierra Sleep: Our Testing Experience
- Performance Scores Compared
- Which Sierra Sleep Mattress Should You Choose?
- Where Sierra Sleep Comes Up Short
- How Sierra Sleep Compares With Alternatives
- What to Check Before You Buy
- FAQs
Sierra Sleep Models at a Glance
| Mattress | Overall Score | Pros | Cons |
|---|---|---|---|
| Chime 12-inch Plush Hybrid (M69731) | 3.9 | Deep pressure relief; reinforced perimeter; cushioned hybrid feel | Too soft for sleepers who need firm lumbar support |
| Peak 2.0 12-inch Hybrid (M20331) | 4.1 | Balanced medium feel; cooler cover; stable edges | More motion transfer than all-foam; limited deep contouring |
| Chime Elite 2.0 10-inch Foam (M425 series) | 3.8 | Firm support; excellent motion control; low sink | Slow rebound; soft perimeter; availability varies |
| Comfort Plus 10-inch Hybrid (M509 series) | 4.1 | Stable coil support; good edge strength; easy movement | Less cushioning for sensitive shoulders and hips |
Which Models Stood Out?
Peak 2.0 Hybrid: This is the best all-around choice in the group. Its medium feel, steady edge, and quick response work well for couples and combination sleepers who do not want an especially soft or firm bed.
Comfort Plus: Choose this model for a more traditional coil feel. It is the easiest to move on, holds up well near the edge, and costs less than many comparable hybrids.
Chime Elite 2.0: This firm foam model is the clear choice for motion isolation. It keeps partner movement quiet, but the slow response and compressible edges make it less comfortable for restless sleepers or anyone who frequently sits on the side of the bed.
Chime 12-inch Plush Hybrid: This model provides the best pressure relief of the four. Its soft top cushions the shoulders and hips well, though heavier back and stomach sleepers may sink too deeply through the middle.
How the Four Mattresses Compare
| Feature | Chime 12-inch Hybrid | Peak 2.0 Hybrid | Chime Elite 2.0 Foam | Comfort Plus Hybrid |
|---|---|---|---|---|
| Comfort | Ultra plush | Medium | Firm | Medium |
| Type | Hybrid | Hybrid | Memory foam | Wrapped-coil hybrid |
| Height | 12 inches | 12 inches | 10 inches | 10 inches |
| Typical queen price | About $350 | About $450–$520 | Varies; limited stock | About $360–$450 |
| Comfort layers | Gel lumbar foam; quilt foam; support foam | Quilt and comfort foams; gel lumbar foam | Gel-charcoal memory foam; green-tea foams | Gel lumbar foam; quilt foam; comfort fiber |
| Support core | Wrapped coils | Power-packed wrapped coils | Firm support foam | 680 wrapped coils in queen; support pad |
| Edge design | Two rows of 9-inch, 13-gauge perimeter coils | Ashley Edge coil system | No separate reinforcement | Two rows of 9-inch, 13-gauge perimeter coils |
| Cooling features | Gel memory foam | Hyper Cool cover; gel memory foam | Micro Cool cover; ventilated green-tea foam | Coil airflow; stretch cover |
| Motion control | Foam over wrapped coils | Foam over wrapped coils | All-foam construction | Individually wrapped coils |
| Adjustable base | Compatible | Compatible | Compatible | Compatible |
| Warranty | 10-year limited | 10-year limited | 10-year limited | 10-year limited |
| Boxed delivery | Yes | Yes | Yes | Yes |
Prices and inventory change by size, retailer, and location. Peak 2.0 and Chime Elite 2.0 stock is especially inconsistent, so confirm the exact SKU and return policy before ordering.
How We Evaluated Each Mattress
Each mattress expanded for at least 48 hours before evaluation. We measured the finished height, assigned firmness on a 10-point scale, and recorded sink with a 44-pound weight. Cooling checks compared the surface temperature before lying down with the reading after 30 minutes. For motion isolation, a 10-pound medicine ball was dropped from 6 inches while an accelerometer sat 12 inches away; each drop was repeated three times and averaged. We also compared center and edge compression under the same load and timed how quickly the surface recovered 90% of its height. Every performance score uses the same 5-point scale.
Sierra Sleep: Our Testing Experience
Chime 12-inch Plush Hybrid (M69731)

Our Testing Experience
The Chime expanded to 11.9 inches and felt like a 4 out of 10 for firmness, making it the softest mattress in this comparison. A 44-pound weight sank 2.1 inches into the top, and the deeper cradle delivered the kind of pressure relief that was easy to feel at the shoulder and hip while side sleeping. The gel lumbar strip kept the center from collapsing completely, but our hips still settled farther than they did on the two medium hybrids.
The surface warmed by 5.8°F after 30 minutes, so cooling was adequate rather than impressive. At the edge, the same load produced 2.9 inches of compression compared with 2.3 inches in the center. The reinforced perimeter remained usable, but the soft comfort layers still folded noticeably while sitting. This is the right Chime for pressure relief, not for a flat or firmly braced sleeping surface.
What we liked:
- The soft top relieved shoulder and hip pressure better than the other three models.
- Wrapped coils kept the mattress from feeling as slow or enveloping as a plush all-foam bed.
- Perimeter coils made more of the surface usable despite the deep cushioning.
Who it is best for:
- Side sleepers who need generous cushioning at pressure points.
- Lightweight sleepers who find medium and firm mattresses uncomfortably rigid.
- Value shoppers who want a plush hybrid rather than a slow, all-foam feel.
Where it falls short:
- Heavier back and stomach sleepers may sink too far at the hips.
- The plush top takes more effort to move across than Peak 2.0 or Comfort Plus.
- Gel foam does not prevent noticeable warmth during longer sessions.

Pros & Cons
| Pros | Cons |
|---|---|
| Best pressure relief in the group | Allows more hip sink than the medium and firm models |
| Reinforced perimeter improves usable width | Soft top slows position changes |
| Coils add support beneath the plush foams | Cooling performance is only average |

Details
- Typical queen price: About $350, depending on retailer and promotion
- Comfort level: Ultra plush
- Height: 12 inches
- Type: Tight-top hybrid
- Comfort layers: 1-inch comfort support foam; 1.5-inch quilt foam; 0.75-inch gel memory-foam lumbar layer
- Support: Individually wrapped coils; two perimeter rows of 9-inch, 13-gauge pocketed coils
- Adjustable base compatible: Yes
- Warranty: 10-year limited
- Shipping: Compressed in a box; allow about 48 hours for full expansion

Review Score
| Metric | Score | Remarks |
|---|---|---|
| Support | 3.8 | Coils stabilize the bed, but the plush top permits more midsection sink |
| Cooling | 3.6 | A 5.8°F rise showed moderate heat retention |
| Pressure Relief | 4.4 | Deep cushioning eased shoulder and hip pressure best |
| Motion Isolation | 3.7 | Foams dampened small movements, though the coils passed along larger impacts |
| Responsiveness | 3.9 | Coil rebound helped, but the soft top slowed turns |
| Edge Support | 4.0 | Perimeter coils limited roll-off despite noticeable top-layer compression |
| Durability | 3.8 | The coil core is solid, though the softer foams face more compression |
| Overall Score | 3.9 | Best for plush pressure relief with underlying coil support |
Peak 2.0 12-inch Hybrid (M20331)

Our Testing Experience
Peak 2.0 finished at 11.9 inches and registered a balanced 6 out of 10 for firmness. The 44-pound weight sank 1.6 inches, enough to soften the shoulder without letting the hips drift far below the torso. Back and side positions both felt natural, and turning required much less effort than it did on the plush Chime.
The Hyper Cool cover and open coil core helped hold the 30-minute temperature increase to 4.2°F. Under the edge load, compression measured 2.1 inches versus 1.8 inches in the center, so we could lie close to the side without feeling pushed inward. The ball-drop test averaged 0.24 g at the sensor: not all-foam quiet, but controlled enough for most couples. Peak 2.0 delivers the most even mix of support, cooling, pressure relief, and movement in this lineup.
What we liked:
- The medium feel supported back sleeping without feeling rigid on the shoulder.
- The cool-touch cover and coil airflow managed heat better than either Chime model.
- The reinforced edge remained stable for sleeping and sitting.
Who it is best for:
- Combination sleepers who move among their side and back.
- Couples who want a balanced feel and usable edge space.
- Sleepers who want moderate contouring without a deep memory-foam hug.
Where it falls short:
- Very light side sleepers may want more surface softness.
- Its wrapped coils still transmit more movement than the Chime Elite foam model.
- Ashley-direct stock can be inconsistent, making comparison shopping necessary.

Pros & Cons
| Pros | Cons |
|---|---|
| Balanced support and pressure relief | Too neutral for shoppers seeking an especially soft or firm feel |
| Best overall cooling in the group | Transfers more motion than all-foam |
| Stable Ashley Edge coil system | Availability varies by retailer |

Details
- Typical queen price: About $450–$520, depending on retailer and promotion
- Comfort level: Medium
- Height: 12 inches
- Type: Tight-top hybrid
- Comfort layers: Quilt foam; comfort foam; gel memory-foam lumbar layer; base support foam
- Support: Power-packed wrapped coils with Ashley Edge
- Cover: Hyper Cool four-way stretch knit
- Adjustable base compatible: Yes
- Warranty: 10-year limited
- Shipping: Compressed in a box; allow about 48 hours for full expansion

Review Score
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.3 | Medium foams and a stable coil core kept the torso level |
| Cooling | 4.1 | The cover and coil airflow limited heat buildup to 4.2°F |
| Pressure Relief | 4.0 | Moderate contouring worked well for back and side positions |
| Motion Isolation | 3.8 | Wrapped coils controlled small disturbances but not sharp impacts |
| Responsiveness | 4.2 | The surface rebounded quickly enough for easy position changes |
| Edge Support | 4.2 | Edge compression stayed close to the center measurement |
| Durability | 4.0 | The coil system and moderate foam depth handled repeated loading evenly |
| Overall Score | 4.1 | The most balanced Sierra Sleep option for mixed-position sleepers |
Chime Elite 2.0 10-inch Foam (M425 Series)

Our Testing Experience
The Chime Elite 2.0 sample reached 9.8 inches and felt like a 7.5 out of 10, making it the closest match to a firm mattress in this group. A 44-pound weight sank just 1.2 inches. Back sleeping felt steady with minimal hip drop, while side sleeping placed more pressure on the shoulder than the three coil models. Ashley now uses the Gruve name on some M425 listings, but the construction matches the Chime Elite 2.0 line reviewed here.
Motion isolation was the standout. The ball-drop test averaged only 0.13 g at the sensor, comfortably lower than the hybrids. In return, the foam needed 2.4 seconds to recover 90% of its height, and the edge compressed more readily because it lacks a separate perimeter system. The surface temperature rose 6.4°F after 30 minutes despite the Micro Cool cover. This model works best when firm support and a quiet surface matter more than bounce or airflow.
What we liked:
- The firm foam kept the hips level during back sleeping.
- Partner movement faded quickly and produced the lowest vibration reading.
- The dense, low-sink surface felt stable through the center.
Who it is best for:
- Back sleepers who prefer a firm, low-contour surface.
- Couples who are easily disturbed by movement.
- Sleepers who prefer foam and do not rely on the edge for support.
Where it falls short:
- Side sleepers with sensitive shoulders or hips receive limited cushioning.
- Slow foam recovery makes frequent turns require more effort.
- The perimeter compresses more than the reinforced hybrid edges.

Pros & Cons
| Pros | Cons |
|---|---|
| Best motion isolation in the group | Slowest surface recovery |
| Firm, low-sink support for back sleeping | Limited pressure relief for side sleeping |
| Micro Cool cover improves the initial touch | Retains more heat than the hybrids |

Details
- Typical price: Varies by size and remaining retailer inventory
- Comfort level: Firm
- Height: 10 inches
- Type: Memory foam, tight top
- Comfort layers: 1.5-inch gel-and-charcoal memory foam; 2-inch green-tea transition foam
- Support: 6.5-inch green-tea firm support foam
- Cover: Micro Cool technology
- Retail naming: Some current Ashley listings use Gruve for the M425 series
- Adjustable base compatible: Yes
- Warranty: 10-year limited
- Shipping: Compressed in a box; allow about 48 hours for full expansion

Review Score
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.1 | The firm foam kept the torso level with little hip sink |
| Cooling | 3.6 | The surface warmed 6.4°F during the 30-minute test |
| Pressure Relief | 3.6 | Low sink left more pressure at the shoulder while side sleeping |
| Motion Isolation | 4.6 | The 0.13 g reading was the lowest in the group |
| Responsiveness | 3.3 | A 2.4-second recovery made the foam feel slow during turns |
| Edge Support | 3.5 | The unsupported perimeter compressed noticeably while sitting |
| Durability | 3.7 | The dense support core stayed stable through repeated loading |
| Overall Score | 3.8 | Best for firm foam support and minimal partner disturbance |
Comfort Plus 10-inch Hybrid (M509 Series)

Our Testing Experience
Comfort Plus expanded to 9.9 inches and landed at 6 out of 10 for firmness. The 44-pound weight sank 1.4 inches, slightly less than on Peak 2.0. The thin foam stack keeps you closer to the coil system, producing stronger pushback and less contouring at the shoulder. It felt supportive on the back and easy to move across, but pressure-sensitive side sleepers will prefer the Chime Hybrid's thicker cushion.
The surface recovered 90% of its height in 0.7 seconds, the fastest result of the four. Temperature rose 3.9°F after 30 minutes, and edge compression measured 2.0 inches under the test load. The queen's 680 individually wrapped coils controlled movement better than a connected innerspring, though the bed still felt livelier than Chime Elite 2.0. Comfort Plus is the strongest fit for shoppers who want familiar coil response and reliable edge support without a thick foam cradle.
What we liked:
- The responsive surface made turning and getting out of bed easy.
- Perimeter coils provided the kind of edge support needed for sitting and sleeping near the side.
- The open coil core produced the best temperature result in the group.
Who it is best for:
- Back and combination sleepers who like a traditional coil feel.
- Hot sleepers who want more airflow than dense foam provides.
- People who need a stable edge for getting in and out of bed.
Where it falls short:
- Pressure-sensitive side sleepers may feel the firmer support beneath the thin foam.
- Sharp movements travel farther than they do on the all-foam model.
- It offers little of the slow, close contour associated with memory foam.

Pros & Cons
| Pros | Cons |
|---|---|
| Fastest response in the comparison | Thin cushioning limits pressure relief |
| Strong support through the center and edge | More motion transfer than all-foam |
| Good airflow through the coil core | Minimal memory-foam contouring |

Details
- Typical queen price: About $360–$450, depending on retailer and promotion
- Comfort level: Medium
- Height: 10 inches
- Type: Wrapped-coil hybrid, tight top
- Comfort layers: 0.25-inch gel memory-foam lumbar layer; 1-inch quilt foam; polyester comfort fiber; support pad
- Support: 680 wrapped coils in queen M50931; two perimeter rows of 9-inch, 13-gauge coils
- Cover: Stain-treated stretch fabric
- Adjustable base compatible: Yes
- Warranty: 10-year limited
- Shipping: Compressed in a box; allow about 48 hours for full expansion

Review Score
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.2 | The coil unit created steady, even pushback |
| Cooling | 4.0 | A 3.9°F rise was the best temperature result here |
| Pressure Relief | 3.8 | The thin comfort stack left more pressure at the shoulder |
| Motion Isolation | 3.9 | Wrapped coils softened movement but did not erase larger impacts |
| Responsiveness | 4.3 | The surface recovered 90% in 0.7 seconds |
| Edge Support | 4.2 | Perimeter coils held compression to 2.0 inches |
| Durability | 4.0 | The simple foam stack and reinforced coil core handled loading evenly |
| Overall Score | 4.1 | Best for responsive coil support and easy movement |
Performance Scores Compared
| Mattress | Overall | Support | Pressure Relief | Cooling | Motion Isolation | Durability | Responsiveness | Edge Support |
|---|---|---|---|---|---|---|---|---|
| Chime 12-inch Hybrid | 3.9 | 3.8 | 4.4 | 3.6 | 3.7 | 3.8 | 3.9 | 4.0 |
| Peak 2.0 Hybrid | 4.1 | 4.3 | 4.0 | 4.1 | 3.8 | 4.0 | 4.2 | 4.2 |
| Chime Elite 2.0 Foam | 3.8 | 4.1 | 3.6 | 3.6 | 4.6 | 3.7 | 3.3 | 3.5 |
| Comfort Plus Hybrid | 4.1 | 4.2 | 3.8 | 4.0 | 3.9 | 4.0 | 4.3 | 4.2 |
Peak 2.0 and Comfort Plus share the highest overall score, but they feel different. Peak 2.0 adds more cushioning and better motion control; Comfort Plus responds faster and feels more like a traditional innerspring. Chime Elite 2.0 leads motion isolation by a clear margin. The Chime Hybrid earns the top pressure-relief score, with a corresponding drop in support for sleepers who sink deeply.
Which Sierra Sleep Mattress Should You Choose?
Start with firmness and sleeping position. Choose the Chime 12-inch Hybrid if you are a lightweight or average-weight side sleeper who needs extra cushioning. Peak 2.0 is the safest choice for mixed positions and couples because its medium feel has no major performance gap. Comfort Plus works better if you sleep hot, change positions often, or prefer stronger coil pushback. Chime Elite 2.0 is the firmest and quietest option, making it best for back sleepers and motion-sensitive partners who accept slower foam and a softer edge. If lower-back support is the priority, a medium or firm mattress is a safer starting point than the ultra-plush Chime. For heat, the two coil models breathe more freely than Chime Elite 2.0.
Where Sierra Sleep Comes Up Short
Sierra Sleep keeps prices low with straightforward comfort layers, so these beds do not offer the deep foam stacks, extensive zoning, or advanced cooling systems found in more expensive models. The range also has sharp trade-offs: the plush Chime can let the hips sink too far, while Chime Elite 2.0 can feel too hard at the shoulder. Retail availability is inconsistent for Peak 2.0 and the M425 series, and return or comfort-exchange policies depend on the seller. Confirm the full SKU, final price, delivery terms, and return rules before purchase.
How Sierra Sleep Compares With Alternatives
Reasons to choose Sierra Sleep:
- Four clearly different comfort profiles at accessible prices
- Boxed delivery and adjustable-base compatibility across the group
- Reinforced coil edges on three models, including two medium-feel options
Linenspa 10-inch Memory Foam Hybrid: Linenspa is the lower-cost choice, with a medium feel and memory foam over individually encased springs. It is a sensible guest-room or short-term option when price matters most. Comfort Plus has the more substantial edge design, while Peak 2.0 adds a more refined cover and lumbar layer. Linenspa's direct stock varies, so compare availability by size.
Zinus Original Green Tea Memory Foam: Zinus offers an inexpensive 10-inch all-foam alternative with a softer, closer contour than Chime Elite 2.0. It isolates motion well but lacks the airflow and edge reinforcement of the Sierra Sleep hybrids. Choose Zinus for a budget foam feel; choose Chime Elite 2.0 for firmer support or Peak 2.0 for easier movement.
Nectar Classic Memory Foam: Nectar costs more than most Sierra Sleep models, but the added price buys a 365-night trial, a longer warranty structure, a 12-inch profile, and a more substantial support stack. It is the stronger option when home-trial terms and a refined medium-firm foam feel matter more than keeping the purchase near the lowest possible price.
What to Check Before You Buy
- Match the comfort level to your primary sleeping position, not the label alone.
- Let the mattress expand for about 48 hours and air out before judging its height, feel, or odor.
- Check the complete SKU because M425 and M509 identify product families, not one size.
- Verify retailer stock and the final delivered price, especially for Peak 2.0 and Chime Elite 2.0.
- Read the seller's mattress return or comfort-exchange policy before opening the box.
- Choose a reinforced perimeter if you regularly sleep or sit near the edge.
- Use a supportive foundation that meets the warranty requirements.
- Rotate the mattress periodically if the care label allows it; do not flip these one-sided designs.
- Use a breathable protector so spills do not compromise the mattress or warranty.
FAQs
Which Sierra Sleep model is best for couples?
Chime Elite 2.0 is best when partner movement is the main concern; its all-foam construction produced the lowest vibration reading. Peak 2.0 is the better all-around choice for couples who want easier turning, cooler sleep, and a steadier edge.
Which model provides the firmest back support?
Chime Elite 2.0 is the firmest, lowest-sink model in the group. Peak 2.0 is a better compromise if you want medium cushioning over a supportive coil core.
Which mattress is easiest to move on?
Comfort Plus is the easiest to move on. Its surface recovered 90% of its height in 0.7 seconds, and the shallow foam layers let the coils respond quickly during turns.
Is the ultra-plush Chime Hybrid too soft?
It is too soft for many heavier sleepers and people who spend most of the night on their stomach. Its 4-out-of-10 feel works best for side sleepers who value pressure relief over firm lumbar support.