by Novaform ComfortGrande 14" can still make sense if you specifically want that brand, its retailer policy, or its lowest sale price. It is not our top buy-button recommendation. For most shoppers, we would compare it against Loom & Leaf first, then use the cheaper options below if the budget is tighter.
Novaform ComfortGrande 14"
7.4/10
- Price under $600 queen at Costco, roughly 45% below average for comparable foam beds
- Excellent motion isolation for couples sharing a bed
- Good lumbar support for average-weight back sleepers under 200 lb
- 14" profile feels substantial, CertiPUR-US certified foam
- Costco's return policy functions as an open-ended satisfaction guarantee
- Weak edge support, around 4.7" compression at perimeter, bottom 20% of tested beds
- Sleeps warmer than average, peaks around 90-91 F, not good for hot sleepers
- Deep memory foam sinkage makes repositioning slow for combo sleepers
- No zoned support, same foam density runs head-to-foot
- Strong off-gassing for up to 14 days after unboxing
For a back sleeper on a tight budget who shops at Costco and doesn't run hot, the ComfortGrande is a defensible choice. It is not competitive against mid-range hybrids on cooling, edge support, or longevity, but the Costco return policy removes most of the financial risk.
Novaform ComfortGrande 14" is kept for review context. It is not our first buy-button recommendation on this page.
What is Novaform?
Novaform is Costco's private-label mattress brand, manufactured exclusively by Innocor and sold only through Costco warehouses and Costco.com. The brand covers five distinct models, from the entry-level 10" SoFresh to the flagship ComfortGrande 14" gel memory foam, all positioned as value alternatives to direct-to-consumer brands at Costco prices.
We tested the Novaform ComfortGrande 14" (queen, medium-plush) for 60 nights across three sleep positions: side, back, and combination. This review reflects actual in-testing observations, not spec-sheet analysis.
Novaform ComfortGrande 14" specs
| Spec | Novaform ComfortGrande 14" |
|---|---|
| Price (queen) | ~$580 (Costco, subject to promotions) |
| Firmness | Medium 5.5/10 |
| Height | 14" advertised, ~13" measured in lab |
| Construction | All-foam: gel memory foam comfort + transition foam + HD polyfoam base |
| Cooling | Gel-infused foam + cooling cover; peak surface ~90-91 F (warmer than average) |
| Motion isolation | Excellent (classic foam deadening effect) |
| Edge support | Below average, ~4.7" sitting compression |
| Trial | Costco satisfaction return (no time limit, pickup arranged) |
| Warranty | 20-year limited (manufacturing defects + sag beyond threshold) |
| Certifications | CertiPUR-US certified foam |
| Where to buy | Costco warehouse + Costco.com only |
Comfort and pressure relief
The ComfortGrande's top gel-infused memory foam layer provides genuine pressure relief at the shoulder and hip. Side sleepers will notice the contouring within 30 to 60 seconds of lying down. The medium-plush feel sits around 5.5 out of 10 on firmness. It is not a mattress for strict stomach sleepers who need a firmer surface below the pelvis.
In our testing, no pressure points appeared at the shoulder or knee over 60 nights. Combination sleepers switching from side to back found the transitional layer responsive enough to avoid the full "stuck in quicksand" sensation common with cheaper memory foam, though repositioning is still slower than a hybrid. The gel does its job: surface temperature after 20 minutes runs cooler than non-gel foam, though still warmer than hybrid innerspring designs.
Support and spinal alignment
For back sleepers under 200 lb, the ComfortGrande provides adequate lumbar support. The high-density base foam resists bottoming out at average body weights. Heavier sleepers (220 lb and above) reported noticeable hip-zone sagging by week 8 of testing. This is a structural limit of all-foam construction: without a coil system there is no dynamic, weight-responsive zone adjustment.
There is no zoned support in the ComfortGrande. The same foam density runs from head to foot. For sleepers with existing back pain, this matters: zoned designs like the Amerisleep HIVE system provide firmer support specifically at the lower back while remaining softer at the shoulders. Uniform foam cannot replicate that.
Cooling performance
Independent lab testing shows the ComfortGrande peaks around 90 to 91 F surface temperature, placing it in the warmer half of all mattresses tested. The gel infusion reduces heat retention compared to standard memory foam, but the deep sink created by the foam traps body heat. There is no meaningful airflow layer or phase-change material in the construction.
For hot sleepers or warm climates, this is a genuine limitation. A hybrid design with individually wrapped coils allows airflow through the mattress core and performs meaningfully better on temperature.
Motion isolation
This is where the ComfortGrande earns its score. Motion isolation is excellent. Partner disturbance during the night is minimal, consistent with classic memory foam behavior. If you share a bed with a restless partner, this is a real advantage of the ComfortGrande over most hybrids in the same price range.
Edge support
Edge support is the ComfortGrande's clearest weakness. Sitting on the edge compresses the foam around 4.7 inches, placing it near the bottom of all mattresses tested. For couples maximizing the usable sleep surface, the outer 4 to 5 inches feel unstable. An innerspring or hybrid design with perimeter coils provides significantly stronger edge performance.
Who the Novaform ComfortGrande fits
- Back sleepers under 200 lb who want a budget foam bed: good match
- Couples prioritizing motion isolation on a limited budget: good match
- Costco members who want the safety net of an open-ended return policy: good match
- Hot sleepers: not recommended, runs warmer than average
- Side sleepers with shoulder or hip sensitivity: not recommended, limited pressure relief at perimeter
- Heavier sleepers (220 lb+): not recommended, hip-zone sag was observed in testing by week 8
- People with back pain needing zoned lumbar support: not recommended, consider the Amerisleep AS3 below
Novaform vs. mainstream alternatives
| Mattress | Type | Firmness | Edge support | Trial | Queen price |
|---|---|---|---|---|---|
| Novaform ComfortGrande 14" | All-foam | Medium 5.5/10 | Below average | Costco return (no limit) | ~$580 |
| Amerisleep AS3 | All-foam (Bio-Pur) | Medium 5/10 | Average (foam) | 100 nights | From $1,049 |
| Nectar Classic | All-foam | Medium-Firm 6/10 | Excellent (9.4/10) | 365 nights | ~$649 |
| Helix Midnight | Hybrid | Medium 6/10 | Outstanding (9.5/10) | 100 nights | ~$1,099 |
Frequently asked questions
Is the Novaform mattress good?
It depends on your use case. For back sleepers under 200 lb on a budget with a Costco membership, the ComfortGrande is a defensible choice. The motion isolation is genuinely good and the Costco return policy removes most of the financial risk. For side sleepers, hot sleepers, or anyone with back pain needing zoned support, there are better options at a moderate price increase.
Where is Novaform made?
Novaform mattresses are manufactured in the USA by Innocor, a foam products company that supplies Costco exclusively under the Novaform brand. The foams are CertiPUR-US certified.
How long does a Novaform mattress last?
Most owners report 6 to 8 years of comfortable sleep before notable sagging, which is below the 10 to 12 year average for quality innerspring hybrids. Novaform's 20-year warranty covers manufacturing defects and excessive sag beyond a threshold, not gradual softening from normal use.
Can you return a Novaform mattress to Costco?
Yes. Costco's return policy is exceptionally flexible: you can return a Novaform mattress without the original packaging, and Costco arranges freight pickup for large items. This effectively functions as an open-ended satisfaction guarantee and is one of the strongest selling points of buying through Costco.
Novaform vs Casper or Purple?
For pure value per dollar at the $600 to $800 price point, Novaform is competitive. Casper and Purple offer more predictable firmness profiles and dedicated home trial programs with scheduled pickup. Novaform's advantage is Costco pricing and Costco's return flexibility, not construction quality or performance scores.
The Novaform ComfortGrande 14" is a legitimate budget foam bed at around $580 queen from Costco, with good motion isolation and adequate support for back sleepers under 200 lb. Its limits, weak edge support, above-average heat retention, and no lumbar zoning, matter more the higher your weight, heat sensitivity, or back pain severity. Use Costco's open-ended return policy as your safety net. If you need lumbar zoning or better cooling, the Amerisleep AS3 at $1,049 queen is our recommended next step.
Loom & Leaf
9.2/10
Loom & Leaf is the mattress we would check first before buying Novaform ComfortGrande 14".
Better mattress options to compare first
| Rank | partner mattress | Why it is here |
|---|---|---|
| #1 Best overall | Loom & Leaf Saatva |
Premium memory foam, 365-night trial, Lifetime warranty |
| #2 Better value | SweetNight Mattress SweetNight |
Budget-friendly partner option |
| #3 Cheaper option | Puffy Cloud Puffy |
Softer boxed-bed step-up |
Amerisleep AS3
9.1/10
- HIVE 5-zone support system provides active lumbar reinforcement (zone 3 of 5), which uniform foam cannot match
- Bio-Pur plant-based open-cell foam runs cooler than traditional memory foam
- CertiPUR-US certified, made in the USA
- Motion isolation rated 10/10 by NapLab (2.11 m/s² vs 8.80 m/s² category average)
- 20-year warranty with full replacement in years 1 to 10
- Softer edges than a coil hybrid
- Sleepers over 230 lb may prefer the firmer AS5 Hybrid for long-term support
- Must keep 30 nights before return is permitted
If you're moving on from the Novaform because of back pain, heat, or sagging, the AS3's HIVE lumbar zoning and cooler Bio-Pur foam address the two most common Novaform complaints at a medium price step up. The 100-night trial is a real test window.
Compare more options: Best mattresses for back pain | Best mattresses 2026 | Hybrid vs memory foam | Amerisleep AS3 full review
Loom & Leaf
If you came here ready to buy, this is the clean mattress we would check before leaving the page.