AC Pacific sells several mattresses, but these four cover two very different feels: three slow-moving memory-foam beds and one thin, responsive Bonnell-spring model. Viscogel is the strongest all-around choice for couples, Herbalfusion has the most balanced foam feel, Herbacoal-12 cushions pressure points most deeply, and Bed-618 makes the most sense for a guest room or a low-cost setup. We compared support, cooling, pressure relief, motion isolation, responsiveness, edge support, and durability to show where each one works—and where the compromises become noticeable.
Table of Contents
- Which AC Pacific Mattress Stands Out?
- The Short Version
- How the Four Mattresses Compare
- What the Tests Covered
- AC Pacific Mattress: Our Testing Experience
- Where Each Mattress Performed Best
- Which Model Fits Your Sleep Style?
- What to Know Before You Buy
- How They Compare With Current Alternatives
- Getting the Best Feel and Support
- Frequently Asked Questions
Which AC Pacific Mattress Stands Out?
| Mattress | Overall Score | Pros | Cons |
|---|---|---|---|
| Viscogel | 4.0 | Excellent motion control; even contouring; limited heat buildup for foam | Slow response; soft when sitting at the edge |
| Herbalfusion | 3.9 | Balanced medium feel; reliable support; low motion transfer | Little bounce; modest edge support |
| Herbacoal-12 | 3.8 | Deep pressure relief; quiet surface; thick comfort layers | Too much sink for some bodies; slowest foam response |
| Bed-618 | 3.7 | Fast response; open spring airflow; stable edge sitting | High motion transfer; thin cushioning at pressure points |
The Short Version
Viscogel is the easiest recommendation for couples who want the contouring of memory foam without excessive warmth. It controlled movement better than most of the group, making it the strongest candidate for shoppers comparing beds with the best motion isolation. It also relieved pressure well and kept the spine settled once the foam compressed. Its slow recovery and soft edge are the main trade-offs.
Herbalfusion is the most versatile foam model. Its medium feel gives combination sleepers and back sleepers more resistance than Herbacoal-12, yet it still cushions the shoulders and hips. Choose it when you want a calm, predictable foam surface rather than a deep hug.
Herbacoal-12 is the pressure-relief specialist. Its thicker build gave side sleepers the most room at the shoulder and outer hip, while its dense foam kept partner movement contained. It belongs on the shortlist for sleepers comparing mattresses for sensitive pressure points. Heavier back and stomach sleepers are more likely to notice their hips settling too far.
Bed-618 is a different proposition: a 6-inch Bonnell-spring mattress with quick pushback, better airflow, and a firmer perimeter. It works best in a guest room, a child's room, or for back sleepers who prefer a direct spring feel. Side sleepers and couples will feel its limits sooner.
How the Four Mattresses Compare
| Comparison Item | Viscogel | Herbalfusion | Herbacoal-12 | Bed-618 |
|---|---|---|---|---|
| Type | Memory foam | Memory foam | Memory foam | Bonnell spring |
| Thickness | 8 or 10 inches | 8 or 10 inches | 12 inches | 6 inches |
| Listed feel | Not specified | Medium | Not specified | Medium-firm |
| Listed sizes | Twin, Twin XL, Full, Queen, California King, Eastern King | Twin, Full, Queen, California King, Eastern King | Full, Queen, California King, Eastern King | Twin, Full |
| Key construction | Gel-bead-infused memory foam | Green-tea-infused layered foam | Green-tea- and charcoal-infused foam | Interconnected Bonnell coils |
| Cooling | Above average for foam | Average for foam | Average for thick foam | Best airflow in the group |
| Motion isolation | Excellent | Very good | Excellent | Fair |
| Responsiveness | Moderately slow | Moderately slow | Slow | Fast |
| Edge support | Moderate | Moderate | Soft | Moderately firm |
| Pressure relief | High | High | Highest in the group | Limited |
What the Tests Covered
Each mattress followed the same test sequence: at least seven nights of sleep, 30-minute back- and side-sleep blocks, repeated position changes, an edge-sit check, and controlled temperature and movement measurements. Mia, at 5'5" and 135 pounds, focused on side-sleep pressure; Carlos, at 6'1" and 205 pounds, tracked support and alignment; and Marcus, at 5'10" and 175 pounds, compared cooling and ease of movement. The firmness number is the panel's average on a 1-to-10 scale, where 10 is the firmest.
For repeatable measurements, we recorded surface temperature before and after 30 minutes under the same comforter and used longer side-sleep blocks to assess pressure relief. Motion isolation was measured by dropping a 10-pound ball from 6 inches, with an accelerometer 24 inches away; each figure is the average of three drops. We timed surface recovery after removing a 44-pound load, used that same load to compare compression, and repeated the seated check from our edge-support process. Those measurements support the 5-point review scores rather than replace the longer sleep sessions.
AC Pacific Mattress: Our Testing Experience
Viscogel
Our Testing Experience

The 10-inch Viscogel sample felt medium at first contact and softened gradually under body heat. The panel rated it 5.5 out of 10 for firmness, and the 44-pound load compressed the comfort surface by 2.0 inches. That gave Mia enough room at the shoulder without letting her hip drop sharply. Carlos needed a few seconds for the foam to settle, but once it did, his lower back stayed evenly supported.
Its gel-bead infusion did not make the surface feel cold, but heat buildup was controlled: the cover rose 4.6°F after 30 minutes, the smallest increase among the three foam models. Movement also faded quickly. The sensor registered a 0.09 g peak in the drop test, close to Herbacoal-12 and well below Bed-618. The compromise showed up when changing positions; the foam took 3.6 seconds to recover 90% of its height, so quick turns required more effort than they did on the spring mattress.
What we liked
- Excellent motion control without the deepest sink in the group
- Even shoulder and hip contouring for side sleepers
- Less overnight heat buildup than the other foam models
Who it is best for
- Side sleepers who need pressure relief but dislike an overly plush surface
- Light- to average-weight couples who wake easily when a partner moves
- Back sleepers who prefer a close contour instead of springy pushback
Where it falls short
- The slow recovery can make frequent position changes feel labored
- The perimeter is comfortable for sleeping but compresses noticeably when sitting
Pros & Cons
| Pros | Cons |
|---|---|
| Strong motion isolation; even pressure relief; controlled heat buildup | Slow recovery; moderate edge support |
Details
- Type: Memory foam.
- Key feature: Gel-bead-infused foam.
- Thickness options: 8 and 10 inches.
- Listed sizes: Twin, Twin XL, Full, Queen, California King, Eastern King.
- Foundation: Optional matching foundation available through AC Pacific.
Review Score
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.0 | Held the lumbar area evenly after the foam settled. |
| Cooling | 4.1 | Lowest temperature rise among the foam models. |
| Pressure Relief | 4.3 | Made room for the shoulder and hip without excessive drop. |
| Motion Isolation | 4.6 | Kept movement from spreading across the surface. |
| Responsiveness | 3.4 | Needed several seconds to recover after turns. |
| Edge Support | 3.5 | Usable for sleeping, noticeably softer for sitting. |
| Durability | 3.8 | The core stayed even, though the perimeter softened first. |
| Overall Score | 4.0 | The best blend of quiet sleep and balanced cushioning. |
Herbalfusion
Our Testing Experience

Herbalfusion landed at 6 out of 10 for firmness, making it the firmest of the three foams without feeling hard. A 44-pound load compressed the surface by 1.8 inches. That slightly shallower contour kept Carlos' hips level on his back and gave Marcus a more stable platform when he rolled from back to side. Mia still had enough shoulder give, but the feel was less enveloping than Herbacoal-12.
During the temperature check, the surface increased by 5.2°F after 30 minutes—typical for memory foam and warmer than Viscogel. Its 0.11 g motion peak remained low enough that small position changes were difficult to feel on the opposite side. Recovery took 3.1 seconds, a little faster than Viscogel and clearly faster than Herbacoal-12. That combination made Herbalfusion the least demanding foam model for combination sleepers, even though it never felt genuinely bouncy.
What we liked
- A balanced medium feel that worked across back and side positions
- Enough contouring for pressure relief without a deep, slow sink
- Low motion transfer with slightly quicker recovery than the other foams
Who it is best for
- Combination sleepers who want a steady foam surface
- Back sleepers who need more resistance under the hips
- Couples who value quiet sleep but do not want the plushest model
Where it falls short
- It still lacks the quick pushback of a spring mattress
- The edge folds more under seated weight than Bed-618's perimeter
Pros & Cons
| Pros | Cons |
|---|---|
| Balanced medium feel; consistent support; low motion transfer | Average cooling; soft edge for sitting |

Details
- Type: Memory foam.
- Listed feel: Medium.
- Thickness options: 8 and 10 inches.
- Listed sizes: Twin, Full, Queen, California King, Eastern King.
- Key feature: Green-tea-infused layered foam.
Review Score
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.1 | Kept the hips more level than the softer foams. |
| Cooling | 3.7 | Average heat buildup for memory foam. |
| Pressure Relief | 4.2 | Cushioned joints without a pronounced sink. |
| Motion Isolation | 4.5 | Contained small and moderate movements well. |
| Responsiveness | 3.4 | Easier to turn on than Herbacoal-12, but still slow. |
| Edge Support | 3.4 | Adequate when lying down, soft under seated weight. |
| Durability | 3.8 | Maintained a consistent feel through repeated cycles. |
| Overall Score | 3.9 | The most versatile foam choice in the group. |
Herbacoal-12
Our Testing Experience

Herbacoal-12 produced the deepest cradle. The panel put it at 5 out of 10 for firmness, and the 44-pound load sank 2.4 inches into the upper layers. Mia could remain on her side longer before her shoulder felt compressed, and her outer hip settled more evenly than it did on Bed-618. Carlos, however, noticed his pelvis sitting lower than his chest after a longer back-sleep block.
The thicker foam also held more warmth. Its surface rose 5.8°F in 30 minutes, the largest increase in this group, despite the charcoal and green-tea infusion. Motion control was excellent: the sensor peak averaged just 0.08 g, the best result of the four. The trade-off was a 4.8-second recovery time. When Marcus turned quickly, the foam was still rebuilding beneath him, which made the surface feel less cooperative than Herbalfusion.
What we liked
- The deepest shoulder and hip relief in the group
- Excellent motion isolation for partners with different schedules
- A thick comfort build that softens the feel of a rigid platform
Who it is best for
- Pressure-sensitive side sleepers, especially at the shoulders and outer hips
- Couples who put motion control ahead of fast response
- Sleepers who want a plush, close-fitting foam feel
Where it falls short
- Heavier sleepers, especially stomach sleepers, may sink too far through the middle
- Frequent position changes feel slower because the foam takes longer to recover
Pros & Cons
| Pros | Cons |
|---|---|
| Deep pressure relief; excellent motion control; thick comfort layers | Slow recovery; more heat buildup; soft perimeter |

Details
- Type: Memory foam.
- Thickness: 12 inches.
- Listed sizes: Full, Queen, California King, Eastern King.
- Key feature: Green-tea- and charcoal-infused memory foam.
- Foundation: Optional matching foundation available through AC Pacific.
Review Score
| Metric | Score | Remarks |
|---|---|---|
| Support | 3.9 | Comfortable for lighter bodies; less stable under heavier hips. |
| Cooling | 3.5 | Built up the most heat in the 30-minute check. |
| Pressure Relief | 4.4 | Gave the shoulder and hip the most room to settle. |
| Motion Isolation | 4.6 | Recorded the lowest motion peak in the group. |
| Responsiveness | 3.2 | Took the longest to rebuild after pressure was removed. |
| Edge Support | 3.3 | The thick foam compressed deeply at the perimeter. |
| Durability | 3.9 | Solid core, though regular rotation will help distribute wear. |
| Overall Score | 3.8 | The strongest choice for deep pressure relief. |
Bed-618
Our Testing Experience

Bed-618 felt firmer than its medium-firm label suggests because its 6-inch profile leaves little room for cushioning above the coils. The panel rated it 6.5 out of 10, and the 44-pound load compressed the surface by only 0.9 inch. Carlos stayed level on his back, but Mia felt pressure build at her shoulder sooner than she did on any foam model.
The spring unit reacted almost immediately. It recovered 90% of its height in 0.6 second, so turning never felt restricted. The open construction also limited the 30-minute temperature rise to 3.2°F. Those gains came with much more movement: the drop test produced a 0.28 g peak at the opposite sensor, more than triple the foam results. The interconnected coils also carried a light ripple across the bed after each turn.
What we liked
- Fast response that makes turning and getting out of bed easy
- Better airflow than the three solid-foam models
- A simple, supportive build for occasional or single-sleeper use
Who it is best for
- Back sleepers who prefer a firmer, more direct spring surface
- Guest rooms, children's rooms, and starter setups
- Shoppers who need a low-profile Twin or Full mattress
Where it falls short
- Partner movement travels readily through the interconnected coils
- The thin comfort layer does not cushion side-sleep pressure well

Pros & Cons
| Pros | Cons |
|---|---|
| Immediate response; good airflow; stable seated edge | High motion transfer; little pressure-point cushioning |

Details
- Type: Bonnell-spring mattress.
- Thickness: 6 inches.
- Listed feel: Medium-firm.
- Listed sizes: Twin and Full.
Review Score
| Metric | Score | Remarks |
|---|---|---|
| Support | 3.8 | Kept back sleepers level on a firm, direct base. |
| Cooling | 4.0 | Recorded the smallest temperature increase. |
| Pressure Relief | 3.4 | Too little cushioning for sensitive shoulders and hips. |
| Motion Isolation | 2.9 | Transferred the most movement across the surface. |
| Responsiveness | 4.2 | Recovered almost immediately after pressure was removed. |
| Edge Support | 3.8 | Felt steadier for sitting than the foam perimeters. |
| Durability | 3.6 | Stable coil unit, but the thin comfort layer has less material to absorb wear. |
| Overall Score | 3.7 | The practical pick for bounce, airflow, and occasional use. |
Where Each Mattress Performed Best
| Mattress | Overall Score | Support | Pressure Relief | Cooling | Motion Isolation | Durability | Responsiveness |
|---|---|---|---|---|---|---|---|
| Viscogel | 4.0 | 4.0 | 4.3 | 4.1 | 4.6 | 3.8 | 3.4 |
| Herbalfusion | 3.9 | 4.1 | 4.2 | 3.7 | 4.5 | 3.8 | 3.4 |
| Herbacoal-12 | 3.8 | 3.9 | 4.4 | 3.5 | 4.6 | 3.9 | 3.2 |
| Bed-618 | 3.7 | 3.8 | 3.4 | 4.0 | 2.9 | 3.6 | 4.2 |
Viscogel earned the highest overall score because it paired excellent motion control with strong pressure relief and the best cooling result among the foam beds. Herbalfusion gave up a little cooling and motion isolation but provided the group's most balanced foam support. Herbacoal-12 led pressure relief and matched Viscogel for motion control, though its slow recovery and deeper sink lowered its overall score. Bed-618 dominated responsiveness and airflow, but its movement transfer and thin cushioning make it a more specialized choice.
Which Model Fits Your Sleep Style?
Start with pressure and movement. Side sleepers should look first at Viscogel or Herbacoal-12: Viscogel feels more balanced, while Herbacoal-12 allows the shoulder and hip to sink farther. Combination sleepers get the easiest compromise from Herbalfusion because it recovers sooner and holds the hips higher than the softer foam models.
For back sleeping, body weight matters. Herbalfusion suits most light- and average-weight back sleepers, while Bed-618 gives people who dislike foam a firmer, more immediate surface. Heavier back or stomach sleepers should be cautious with Herbacoal-12 because the middle compresses more deeply.
Couples should favor Viscogel or Herbacoal-12 when motion control is the priority. Bed-618 is the better fit when airflow, bounce, a low profile, or occasional guest use matters more than partner isolation. Before ordering any model, confirm the exact thickness, size, seller, shipping charge, return policy, and foundation requirements; AC Pacific lists these products in a trade-oriented catalog, and consumer terms vary by retailer.
What to Know Before You Buy
None of these mattresses offers a reinforced foam perimeter, and all three foam models recover slowly compared with a spring or hybrid bed. Herbacoal-12 is especially easy to sink into, which can pull heavier sleepers out of neutral alignment. Bed-618 solves the response and airflow problem, but its 6-inch build leaves little material between the body and coils. It also comes only in Twin and Full, and its interconnected springs transmit more movement than the foam beds.
Availability deserves equal attention. All four models remain in AC Pacific's current catalog, but prices and stock differ by size, retailer, and marketplace seller. Some listings also use generic construction names instead of the model name. Match the model number and thickness before buying so a 5-inch Bonnell mattress or another green-tea foam bed is not mistaken for the product reviewed here.
How They Compare With Current Alternatives
The Zinus Original Green Tea Memory Foam Mattress is the clearest alternative to Herbalfusion. Both use green-tea-infused memory foam and favor pressure relief over bounce. Zinus currently sells a 10-inch, fiberglass-free version through its own site with a published 10-year warranty, which makes its purchase terms easier to check. Herbalfusion offers both 8- and 10-inch profiles and felt a little steadier for back and combination sleeping.
The Linenspa 8-inch Memory Foam Hybrid is a stronger choice than Bed-618 when you want springs with more cushioning. It uses individually encased coils and a gel-memory-foam comfort layer, while Bed-618 uses interconnected Bonnell coils beneath a much thinner 6-inch build. Linenspa better suits shoppers who want a budget hybrid feel; Bed-618 is more direct, more responsive, and easier to fit into a low-profile Twin or Full setup. Linenspa stock varies by size.
IKEA's VESTERÖY is the more flexible spring alternative. It uses pocketed coils, comes in more sizes, offers two firmness choices, and includes clearly published trial and warranty terms. That makes it a better everyday option for couples or shoppers who want to try a mattress in person. Bed-618 remains the simpler choice for occasional use when low height and classic Bonnell bounce matter most.
Getting the Best Feel and Support
- Use the same pillow for the first several nights; changing both the mattress and pillow makes alignment harder to judge.
- Pair the foam models with breathable sheets and a lighter comforter; the layers above the bed also affect temperature control.
- Rotate the mattress from head to foot every three to six months to spread wear, especially on Herbacoal-12.
- Give side-sleep pressure a few nights to settle, then adjust pillow height if the shoulder sinks farther than expected.
- Vary where you sit along the edge so the same section does not absorb all the daily compression.
- Add a topper to Bed-618 only if you need more cushioning and can accept a slower, warmer surface.
- Use a flat, stable foundation that meets the seller's support requirements; wide gaps can change the feel and shorten the life of foam.
Frequently Asked Questions
Which AC Pacific mattress felt best for side sleeping?
Herbacoal-12 gave the shoulder and hip the most room to settle, making it the strongest choice for pressure-sensitive side sleepers. Viscogel finished close behind and feels more balanced if you dislike a deep cradle.
Which model is most couple-friendly?
Viscogel is the best all-around couple pick because it combines excellent motion control with less heat buildup than the other foam beds. Herbacoal-12 isolates movement just as well but feels softer and warmer.
Does Bed-618 work for everyday use?
It can serve a single back sleeper who likes a firm, springy surface, but it is better suited to guest rooms, children's rooms, and occasional use. Couples and pressure-sensitive side sleepers will notice the thin cushioning and motion transfer quickly.
Which model is easiest to move on?
Bed-618 is the easiest to turn on because its spring unit rebounds almost immediately. Herbalfusion is the easiest of the three foam models, though it still has a slow memory-foam response.