by Loom & Leaf
9.0/10
If you want a more premium foam alternative to the mattress reviewed here, Loom & Leaf is the Saatva pick to compare first.
Check Loom & Leaf Price
Quick answer: The Novaform 14" ComfortGrande is Costco's all-foam gel memory foam mattress, about $699 for a queen with a 20-year warranty. It offers a deep contouring hug and good motion isolation, but there's no dedicated sleep trial, longer off-gassing, and you need a Costco membership.
By the MattressNut editorial team · Updated June 2026
Novaform Overview
Novaform is Costco's house foam mattress line, and the 14-inch ComfortGrande is a three-layer, medium-firm gel memory foam bed made in the USA. It's sold exclusively through Costco and aims to deliver a classic memory-foam feel at a budget-friendly price.
Novaform Specs (what we could verify)
| Spec | Novaform 14" ComfortGrande |
|---|---|
| Type | 14-inch all-foam; gel memory foam over polyfoam, medium-firm (~6/10) |
| Price | ~$699 queen (varies by warehouse and promotions) |
| Trial / returns | No dedicated sleep trial; covered by Costco's general return policy |
| Warranty | 20-year limited (floor use voids it) |
| Where sold | Costco (membership required) |
What Owners Report
Testers rate it well for motion isolation and edge support, with relatively neutral temperature for memory foam thanks to gel infusion and air channels. Side sleepers under ~230 pounds tend to like the pressure relief. Criticisms include a strong off-gassing odor that can last up to two weeks, a deep "hug" feel that not everyone enjoys, and one reviewer measuring the loft closer to 13" than the stated 14".
The Saatva Alternative
If you'd rather not buy without a real home trial, the Saatva Classic ships with a 365-night trial so you can test it risk-light, plus a lifetime warranty and free white-glove delivery. As a coil-on-coil hybrid (queen around $1,995), it sleeps cooler and more supportive than a deep memory-foam hug, and there's no membership required.
View the Saatva Classic
Bottom Line
The ComfortGrande is a fair-value memory foam mattress if you're a Costco member who loves a contouring feel and can tolerate some off-gassing. The lack of a dedicated trial is the main drawback to weigh.
Bottom line: Novaform's ComfortGrande is solid budget memory foam, but no sleep trial and a deep-hug feel make the Saatva Classic the safer, cooler choice.
Related: our full Saatva mattress review.
How to use this review
This page is meant to answer the brand-specific search first, then give you a practical next step. If you came here researching novaform 14 comfortgrande advanced gel memory foam mattress review, use the review sections above to understand the feel, support profile, likely durability, and the type of sleeper the mattress was originally built for.
For buying decisions, we separate the editorial subject from the recommendation. The reviewed brand can still be useful context, but the primary buy card points to Loom & Leaf because it is the cleaner option we can stand behind on MattressNut. That keeps the page honest: the review remains about the searched brand, while the shopping recommendation uses a product with a direct partner path.
Who should compare alternatives?
Compare alternatives if the reviewed mattress is discontinued, difficult to buy, poorly supported by trial terms, or weaker on long-term durability. Also compare if you are a heavier sleeper, sleep hot, share the bed with a partner, or need firmer edge support than a basic foam mattress usually provides.
What matters most before buying?
Check the current trial window, warranty language, return fees, mattress height, firmness, and whether the mattress uses coils, latex, or foam. Those details matter more than a temporary sale badge. A slightly higher upfront price can be the better value if the bed keeps its support longer and gives you a safer return path.