Yawnder mattress reviews · October 27, 2026
The Novaform ComfortGrande Advanced Hybrid is a 14-inch Costco mattress that pairs memory foam with coils. It is a separate product from the all-foam ComfortGrande Plus and Advanced Gel mattresses: verify the full name and item number before comparing specifications or prices.
Review method: This assessment uses Costco’s product listing and policy information. We have not hands-on tested this exact model or independently measured its firmness, cooling, motion transfer, edge support or durability.
Quick verdict
Consider it if you want the contouring of memory foam with a coil support core and prefer a medium-labeled mattress. Its 14-inch profile and Costco delivery options are practical details to check, as are the final price and membership requirements. If you want an all-foam mattress or a substantially firmer feel, compare alternatives first.
Check Costco availability · Read the ComfortGrande Plus foam review
Specifications at a glance
| Construction | Memory-foam hybrid with responsive coils and firm edge foam |
|---|---|
| Height | 14 inches |
| Listed feel | Medium |
| Comfort features | Quilted cover with cool-to-touch fibers and EVENcor GelMAX memory foam with phase-change gel |
| Sizes listed | Queen and king; check availability |
| Warranty | 20-year warranty listed; conditions apply |
| Costco item | 1964082; product page 4000395703 |
Who should consider it?
- Shoppers looking for foam and coils: The build combines a memory-foam comfort surface with a spring support system.
- People shopping Costco: The listing identifies the model, sizes and delivery choices so you can compare your complete checkout price.
- People who like a substantial bed height: At 14 inches, it creates a taller setup than a low-profile mattress; measure your frame and fitted sheets.
Compare another mattress if you strongly prefer all foam, want an especially firm feel, or need a shorter bed. The medium label is a starting point, not a guarantee of comfort for every weight or sleeping position.
Construction and expected feel
Costco describes a four-layer design with a plush quilted cover, EVENcor GelMAX memory foam containing phase-change gel, responsive coils and firm edge foam. The listing calls the mattress medium. Foam may give a more contouring surface than a traditional innerspring, while coils provide a spring-based core; these are expectations from construction, not measured performance.
Side sleepers should check shoulder and hip comfort. Back and stomach sleepers can evaluate whether the midsection feels supported. We have not conducted a pressure-map test, and body size and the base used can change the perceived feel.
What is inside and how to set it up
Novaform lists 3 inches of EVENcor GelMAX memory foam over 3 inches of air-channel foam, a 6-inch individually wrapped coil unit (Novaform describes 8-inch coils compressed into 6-inch pockets) and 2 inches of base foam, with a firm foam perimeter. Those are manufacturer specifications; layer thicknesses do not by themselves establish pressure relief, cooling or durability. Novaform says the foam is CertiPUR-US certified and the foam and cover are fiberglass-free.
Novaform lists the queen at 60 by 80 by 14 inches and 90.8 pounds, and the king at 116.3 pounds. Costco lists the queen at 100.6 pounds, so the sources differ; confirm the weight for your selected size before arranging help. It ships compressed in a box; Novaform says expansion can take up to 48 hours. Arrange help moving it, check sheet pocket depth and confirm that your base meets the warranty requirements. Novaform lists platform beds, box springs and adjustable bases as compatible; check your particular setup with the seller.
What Costco members report
On October 29, 2026, Costco displayed 4.5 out of 5 stars from 517 reviews, including 377 five-star and 20 one-star ratings. This is customer feedback on the retailer listing, not Yawnder test data; reviews can span sizes and ratings change over time.
Cooling, motion and edge support
The cover’s cool-to-touch fibers and gel are manufacturer cooling features. They do not establish a measured overnight temperature advantage. Sheets, room temperature and personal preference matter. Likewise, the firm edge foam and coil design describe construction; we have not measured edge compression or partner movement.
Advanced Hybrid vs ComfortGrande Plus
The ComfortGrande Plus review covers an all-foam model, while this Advanced Hybrid listing includes coils and a quilted cover. Similar names do not mean identical materials or performance. Compare the exact Costco SKU, seller, size and final price. The Legacy Premier Support Hybrid is another distinct Costco model, not the same mattress under a shortened name.
Price, delivery, returns and warranty
On October 28, 2026, Costco displayed a $749.99 online price for the queen configuration. Prices, availability, delivery options and promotions can vary by location and change. Sign in if needed, select your size and confirm the checkout total, membership requirements, delivery coverage and any setup fee. The listing describes boxed threshold delivery and says setup or removal can cost extra.
Costco’s merchandise satisfaction guarantee applies subject to its stated exceptions and conditions; confirm pickup or return logistics for this specific large item before buying. The product listing states a 20-year warranty, which is separate from Costco’s return policy. Read the warranty and keep proof of purchase.
Frequently asked questions
Is this ComfortGrande all foam?
No. The Advanced Hybrid listing includes a coil support system. ComfortGrande Plus and Advanced Gel are separately named foam models.
Is it good for side sleepers?
Its medium label and foam surface make it a possible candidate, but we have not tested pressure relief. Check fit for your shoulder and hip and review the seller’s return process.
Is the cover guaranteed to keep you cool?
No. Costco lists cooling fibers and phase-change gel, but we have not independently measured overnight temperature.
Does Costco include setup?
The inspected listing describes threshold delivery and says setup or package removal may be available for an additional fee. Check service and price for your address.
Final recommendation
The Advanced Hybrid is worth considering if you want a medium-labeled, 14-inch foam-and-coil mattress sold through Costco. Compare it with the all-foam ComfortGrande and the Legacy hybrid using the exact SKU and delivered price.
Sources: Costco product listing and Costco return policy, checked October 29, 2026.
Compare this mattress against 142 tested mattresses
Sort all 142 mattresses we have tested by pressure relief, support, cooling, motion isolation, edge support, price, trial and warranty, then filter by how you actually sleep. Of those, 84 hold a complete standardized record and 41 a partial standardized record.