How firm is the Advanced Back Support Plus 12″ Responsive Foam Mattress, and which firmness should you pick?
Costco lists the Novaform Advanced Back Support Plus 12" Responsive Foam Mattress as Firm.
- Firm
Sources (1)
- costco.com, checked Oct 23, 2026
Yes, NapLab's fit ratings suggest it may suit back or stomach sleepers under 150 lb who prefer a very firm feel. The catch is little give: NapLab's tester says the design is not ideal for all sleepers. Side sleepers under 150 lb should look elsewhere. If you prefer medium-firm memory foam, choose the Siena 10” Signature Memory Foam Mattress; NapLab scores it 8.39 versus 7.68 for Novaform. Buy it only if you are comfortable with that trade-off.
Costco lists the Novaform Advanced Back Support Plus 12" Responsive Foam Mattress as Firm.
For sleepers under 150 pounds, NapLab rates this mattress as a fit for back and stomach sleeping, but not side sleeping. NapLab describes it as extremely firm with little give. If you want more give when side sleeping, use that rating as a reason to look for a different feel.
NapLab measured 3.75 in of sinkage while sitting at the edge. The edge will dip when you sit to get dressed or climb into bed, which matters if you need a steady place to sit. This is a sitting result, not a result for lying near the edge during sleep.
| Your body weight | Side sleepers | Back sleepers | Stomach sleepers |
|---|---|---|---|
| Under 150 lbs | No | Yes | Yes |
NapLab's tester says the mattress may provide appropriate support for some people with back pain, but it is not ideal for all sleepers. The brand says its zoned memory foam is meant to uplift the back and body. NapLab's tester ties its design to an extra-firm feel with minimal sinkage. Consider it if you prefer that feel. This is not a promise of pain relief.
| Tester | What it says about back pain |
|---|---|
| NapLab | NapLab's tester says the design can provide appropriate support for some people with back pain, but is not ideal for all sleepers. |
It may sleep warm rather than neutral: NapLab’s readings point to heat build-up. The brand says its Breathable, Fresh Cover allows airflow and its Ultra Responsive LURAcor™ Support Foam is breathable. NapLab recorded Baseline: 78.0° F, Max.: 91.8° F, Ending: 83.0° F. The Ending reading stayed above Baseline, so if you are sensitive to warmth, do not count on a cool feel.
Yes, you may feel a restless partner move: NapLab rated motion transfer high and recorded a 12.58 m/s² acceleration range. NapLab also rated bounce low at 7.60″ total bounce height. For a light sleeper sharing with a restless partner, the high motion-transfer result is the key warning; low bounce does not cancel it. Compare options by motion-transfer readings, and favor a lower result if partner movement is your main sleep concern.
| Tester | Motion and bounce reading |
|---|---|
| NapLab | Motion transfer: high, 12.58 m/s² acceleration range; bounce: low, 7.60″ total bounce height. |
Choose by footprint and match the mattress dimensions to your frame and bedroom. Compare the table with the space you have before deciding. A wider size takes more room, so sizing up may not work with a small bedroom or frame. Check the fit first to avoid choosing a mattress that will not suit your setup.
| Size | Dimensions |
|---|---|
| Twin | 39 x 75 inches |
| Full | 54 x 75 inches |
| Queen | 60 x 80 inches |
| King | 76 x 80 inches |
Height: 12 inches
The build runs from a soft-knit cover to a firm foam base. Novaform lists the layers in this top-to-bottom order:
The Queen weighs 73.7 lb, and Novaform says it is made in USA. Plan for help with moving it into place.
| Layer | What it is made of |
|---|---|
| Breathable, Fresh Cover | Soft-knit cover |
| Ultra Responsive LURAcor™ Support Foam (2 in) | LURAcor™ support foam |
| Firm Zoned Back Support (1 in) | Memory foam |
| Sturdy Base Foam (6 in) | Base foam |
The Novaform has a soft-knit cover, while CertiPUR-US® applies to its foam, not the whole mattress. The brand says the cover is breathable and infused with antimicrobial mattress protection. For the foam, it specifies no heavy metals or phthalates, low VOCs, and no ozone depleters. The directory record is valid through 2026.
No. Novaform says both the mattress and cover are fiberglass free. Check the law tag for the listed materials before you buy, so you can review what the mattress contains and decide whether those materials suit your preference. This gives you the brand’s claim and the tag’s material list to consider together.
This mattress works with platform beds, slatted bases, standard box springs, and adjustable bases. Use slats spaced less than six inches apart; wider spacing will void the limited warranty. Platform beds, adjustable bases, and box springs must provide proper airflow and support. If they lack proper airflow and support, they will void the limited warranty.
| Base | What the brand says | Rules and warranty |
|---|---|---|
| Platform bed | is compatible with platform beds | Needs proper airflow and support. A base without proper airflow and support voids the limited warranty. |
| Slatted base | is compatible with slats spaced less than six inches apart | Slats spaced less than six inches apart. A base without proper airflow and support voids the limited warranty. |
| Box spring | is compatible with box springs | Standard box spring with proper airflow and support. A base without proper airflow and support voids the limited warranty. |
| Adjustable base | is compatible with adjustable bases | Needs proper airflow and support. A base without proper airflow and support voids the limited warranty. |
NapLab notes reinforced fabric on the mattress’s bottom half for durability, but that feature is not a lifespan estimate. Novaform says it may take up to 1-2 weeks to get used to the feel, especially if you are used to a standard spring mattress. Give it that time before judging comfort.
For care, Novaform recommends occasional flat rotation and says not to flip it. NapLab also notes side handles for rotating the mattress.
| Tester | Durability reading |
|---|---|
| NapLab | Reinforced fabric at the bottom half for durability. |
Novaform’s stated wait for this mattress is 5 - 7 business days, so plan your mattress change around that window instead of expecting immediate arrival. Use the window to schedule when to make space for the replacement bed before the delivery arrives.
Typical wait: 5 - 7 business days
Novaform lists a 20-year limited warranty for this mattress. The term tells you how long the warranty runs, and limited coverage has boundaries. Read the warranty terms before buying so you can judge those limits and keep the paperwork handy if you later need to use the warranty.
Costco.com owners rate it 4.3 out of 5 stars across 3837 reviews, but that score does not identify common praise or complaints. It offers a broad signal of owner sentiment, not a promise that the feel will suit you. Use the rating as a starting point, then compare this mattress with your comfort priorities. Think about whether you prefer a softer or firmer feel before relying on an overall rating to guide your choice. A broad score cannot settle personal fit, so let your own sleep needs guide the decision.
Your closest comparisons are Novaform siblings for specific feel, cooling, support, or profile needs, plus outside memory-foam options.
Choose the Platinum 16.5 Luxury Hybrid for Novaform's coolest Euro Top cover and enhanced airflow. Pick the Legacy Elite Premier 16 for a medium-firm feel, or the Legacy Premier Support 14 for its zoned coil-and-foam back-support system. Choose the ComfortGrande Advanced Hybrid when temperature regulation from phase change gel matters, or the ComfortGrande Advanced for listed triple-action cooling. Serafina PerfectTemp 14 lets you select medium or firm. SoFresh Plus 10 is a medium mattress with responsive LURAcor foam. DreamAway 8 suits you if you need an 8-inch profile.
Outside Novaform, Saatva Loom & Leaf Mattress offers a memory-foam feel at Queen: $3,179. NapLab scores it 8.75, above Novaform's 7.68. Siena 10” Signature Memory Foam Mattress suits a medium-firm memory-foam preference at Queen: $329. NapLab scores it 8.39, also above Novaform's score. Choose between them by feel: Loom & Leaf for memory foam, or Siena for medium-firm memory foam.
Since its 2025 launch, no major design changes have been reported for the Novaform Advanced Back Support Plus 12" Responsive Foam Mattress. For someone shopping today, the launch design remains the useful baseline: there is no reported major redesign to weigh when deciding whether this model suits their needs.
No major changes to the design reported since launch
We read the maker's own pages, outside testers and owner reviews, and we date every fact. We do not test beds ourselves. Every source we used is listed below with the day we checked it.
We read the product page, spec tabs and policy pages for layers, sizes, list prices, trial and warranty.
We credit each score to the tester that gave it and never blend scores into one number.
Where a rating exists, we read the owner reviews behind it and outside summaries of what owners like and dislike.
We could not find enough good evidence to answer these questions yet, so this page leaves them out: Where to Try, Full Trial & Return Terms.