Novaform 14-inch ComfortGrande Advanced Gel Memory Foam Mattress: Should You Buy It?

Medium is the listed firmness; choose it if that label fits your preference. Outside ratings offer separate feel cues. Mattress Clarity rated it 7/10 on the Mattress Clarity firmness scale, updated October 11, 2026. Sleepopolis rated it Medium-Soft 6/10 on Sleepopolis's firmness scale, updated October 6, 2026. If you prefer a softer feel, Sleepopolis's Medium-Soft label better matches that preference. The testers use separate scales, so their numbers are not directly comparable. Choose by the descriptions, not a score gap alone.

For sleepers over 230 lbs, the Novaform ComfortGrande Advanced is a better fit for back than for side or stomach sleeping. Mattress Clarity rated back fit Good, side fit Fair, and stomach fit Poor for this weight group.

• Side: The heavier tester felt some pressure. Notice whether pressure builds as you lie on your side.
• Back: The tester felt well supported. Check whether your lower back feels supported.
• Stomach: Mattress Clarity cautioned that heavier stomach sleepers may sink at the hips. Skip this position if your hips feel like they sink too far.

Mattress Clarity scored edge support 3/5 and said it left more to be desired. Weigh that trade-off if you sit or sleep near the edge.

It may be worth considering for back-pain shoppers, but these claims do not promise pain relief. The brand says its 3-layer, 14-inch design is for full-body support. Sleepopolis’s tester said it supported her back and lumbar spine and felt ideal for sleepers with back pain. Mattress Clarity recommends it as a match for back pain, citing lumbar cushioning. These are reasons to consider the bed, not proof that it will ease your pain.

Sleepopolis's five-minute test points to temperature regulation, not a full-night warm or neutral verdict. Reviewer Nichole reported a little over 6 degrees of warming after five minutes lying on the mattress, which Sleepopolis called pretty great temperature regulation. The brand lists Triple Action Cooling, Phase Change Gel, EVENcor GelMAX™ Memory Foam, and a quilted cover with cool-to-touch fibers. For hot sleepers, treat the reading as a brief test result, not a promise of cool sleep all night.

A light sleeper may still notice a restless partner, but Sleepopolis gave the bed 4/5 for motion isolation, a good result that suggests movement should be reduced, not erased. Sleepopolis also described it as not super bouncy. That means there is little springy rebound to expect when your partner shifts. If you wake easily, read these results as encouraging, not a guarantee of undisturbed sleep.

Judge its value by fit first: choose a size that works with your frame and room. Measure the available space, then use the table to narrow your choice.

Choose a size that suits your setup; a different size is not automatically a better buy for your room. This check can help you avoid a footprint that does not work in the space you have.

ComfortGrande Advanced 14" Gel Memory Foam Mattress sizes

Height: 14 inches

It is built with gel memory foam above air channel foam and a durable foam base.

• Top: 3 in. EVENcor GelMax™ gel memory foam. Novaform says this foam is meant to feel similar across warmer and cooler conditions.
• Middle: 3 in. Air channel foam. Novaform says it helps spread weight across the mattress, which may ease pressure.
• Base: 8 in. durable base foam. Novaform says the firm bottom layer helps keep the bed steady.

Novaform says the mattress is made in the USA. The Queen weighs 83.9 lb, a useful figure for planning its move and setup.

The cover is quilted, with a plush feel and fibers meant to feel cool against your skin. Novaform says the foam is made in the USA. CertiPUR-US covers the foam’s emissions, content, and durability. It does not cover the cover or the entire mattress, so treat this as a foam-specific certification, not a claim about every material in the bed.

No, Novaform says this mattress contains zero fiberglass. To check its materials, read the law tag, which lists them. Before you shop, note any material requirements you have, then compare those with the tag's names. That lets you decide whether the listed materials fit your preferences before choosing this mattress.

A platform bed, standard box spring, adjustable base, or well-ventilated slatted base can work; slats must be spaced less than six inches apart. The brand says the limited warranty is void only when a base lacks proper airflow and support.

Mattress Clarity’s reviewer estimates around 10 years with good care; Novaform says do not flip it and turn it occasionally using a flat rotation. Treat the estimate as a planning guide, not a promise.

Novaform says it may take up to 1-2 weeks to get used to the new memory-foam feel, especially if you are used to sleeping on a standard spring mattress. Give yourself that time before judging whether the feel works for you.

The brand lists a delivery window of 5 - 7 business days, so allow for a span of business days rather than one exact delivery day. If this replaces your current mattress, keep the room change flexible instead of planning around a specific date.

Novaform lists a 20-year limited warranty for this mattress. Before buying, read the written terms and keep a copy with your receipt for reference. That gives you the warranty wording and purchase details together if you need to review them later.

Owner feedback is mixed: Costco.com lists the Full size at 4.5 out of 5 stars from 19403 reviews, while individual Reddit accounts describe both comfort and a firm feel. The Costco rating is favorable, but it does not show how the mattress will feel to you.

On Reddit, one owner praised its comfort and value, saying people who tried it found it comfortable. Treat that as one owner’s experience, not a promise that everyone will agree.

A different Reddit owner said the experience was unpleasant and compared the feel to a hard marshmallow. Weigh that firm-feel complaint against the comfort praise if you prefer a softer mattress.

The ComfortGrande Advanced’s closest alternatives are Novaform siblings with different support and feel. Platinum 16.5 Luxury Hybrid offers targeted coil support; Legacy Elite Premier 16 is a seven-layer, medium-firm hybrid. Legacy Premier Support 14 is a firmer hybrid with zoned coil-and-foam support.

ComfortGrande 14 Advanced Hybrid has responsive coils and firm edge foam; Serafina PerfectTemp 14 is the choice for active cooling. Advanced Back Support Plus 12 is a firm foam option with targeted back support. SoFresh Plus 10 has responsive foam and a removable, machine-washable cover. DreamAway 8 suits shoppers who want an 8 in. gel memory foam mattress.

For a different brand, Saatva Loom & Leaf is the memory foam feel pick. Sleep Foundation gives it a 9.1 overall rating and describes three memory foam layers. Siena 10” Signature Memory Foam Mattress suits budget-conscious all-foam shoppers; Sleep Foundation gives it a 7.5 test lab score.

What changed from the ComfortGrande Plus to the Advanced?

By November 2023, the ComfortGrande Plus had been replaced by the ComfortGrande Advanced. The Advanced uses EVENcor GelMAX, a different type of memory foam. rtings.com says it may perform differently, so Plus feedback is not a direct guide to how the Advanced will feel.

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.