Amerisleep vs Novaform Review: AS3 or ComfortGrande?

Amerisleep vs Novaform at a glance

The central choice is simple: Amerisleep builds the standard AS3 as a 12-inch all-foam mattress, while Novaform builds the ComfortGrande Advanced Hybrid as a 14-inch hybrid. Both brands call their respective mattresses medium, so construction is the more useful divider than a label alone.

The AS3 gets the broad recommendation because its structure speaks directly to sleepers who want a medium all-foam mattress with targeted zoning, and Amerisleep gives shoppers a clear 100-night way to decide whether that feel works at home. Novaform is not a lesser version of that concept. It is a different concept, built around a taller hybrid construction and wrapped coils.

Why Amerisleep AS3 wins overall

Amerisleep’s 12-inch AS3 is the more balanced choice for the widest range of shoppers deciding between these two exact beds. Its medium designation avoids a commitment to an especially firm or especially plush feel, while its Bio-Pur comfort foam and HIVE zoned support give its all-foam construction a defined comfort-and-support plan.

HIVE zoning is the detail that separates the AS3 from a plain foam comparison. Amerisleep identifies it as zoned support, which gives shoppers a specific reason to consider the AS3 if they want support designed in zones rather than a coil system. That is a meaningful construction distinction, not a promise about how every body will experience the mattress.

The 100-night trial strengthens the AS3’s overall case. A medium mattress can be appealing on paper and still feel wrong after several nights, especially for a couple or anyone changing from a very different bed. Amerisleep offers that 100-night trial, plus free shipping and returns under its published terms.

Novaform still has a legitimate advantage for a narrower audience. Its 14-inch profile and wrapped coils are not features the standard all-foam AS3 tries to duplicate. For a shopper whose decision starts with “I want a hybrid,” the Novaform ComfortGrande Advanced Hybrid belongs at the top of the shortlist.

Construction and feel: foam zoning versus a coil hybrid

The AS3 uses an all-foam design in this comparison. Amerisleep names Bio-Pur foam as the comfort layer and HIVE as the zoned support component. That creates a clean materials story: foam at the surface, with a zoned support design underneath rather than a spring unit.

Novaform calls the ComfortGrande Advanced Hybrid a four-part construction. Within that construction, Novaform names phase-change gel memory foam, an air-channel foam layer, wrapped coils, edge foam, and a base-foam layer. Those materials work as grouped components of the stated four-part design, with the wrapped coils providing the defining hybrid element.

Both companies use the word medium, but I would not treat that shared label as proof of an identical feel. The AS3’s all-foam layout and Novaform’s foam-over-coil hybrid layout are fundamentally different approaches. Medium is a starting point; the support system beneath the comfort materials is the practical reason a buyer may lean one way or the other.

• AS3: A 12-inch medium all-foam mattress with Bio-Pur foam and HIVE zoned support, according to Amerisleep.
• ComfortGrande Advanced Hybrid: A 14-inch medium hybrid with wrapped coils and named foam components, according to Novaform.
• Decision lens: Pick foam zoning if you want the AS3’s construction approach; pick wrapped coils if you want a hybrid foundation.

For a closer product-specific look at the AS3’s materials and format, see our Amerisleep AS3 review. The useful takeaway here is not that one material list is universally superior. It is that these mattresses offer two clearly different builds to shoppers who both prefer a medium feel.

Pressure relief and support

Bio-Pur foam is the AS3 comfort material Amerisleep highlights, so the pressure-relief conversation begins with a foam comfort layer. The support conversation begins with HIVE. Because Amerisleep identifies HIVE as zoned support, the AS3 is the natural choice for shoppers who want that kind of targeted support design in an all-foam bed.

Novaform’s pressure-relief approach begins with phase-change gel memory foam and its air-channel foam layer. Under those foam components, Novaform uses wrapped coils. That combination should appeal to buyers who do not want their support system to be all foam and who prefer a hybrid mattress’s coil-based construction.

Neither manufacturer provides a sleeper-weight range, body-type recommendation, or firmness scale beyond medium in the details here. I would not pretend those missing details can be settled by a broad claim about side, back, or stomach sleeping. Your best choice depends on whether the construction itself, zoned foam support or wrapped coils, matches what you want beneath you.

That distinction also helps keep expectations realistic. Foam comfort materials can be important to the initial feel, but the structural choice affects what you are buying over the long haul. Amerisleep’s stated zoning is the AS3’s key support feature. Novaform’s stated wrapped coils are the ComfortGrande Advanced Hybrid’s key structural feature.

Temperature, motion, and edge considerations

Novaform names phase-change gel memory foam and an air-channel foam layer in the ComfortGrande Advanced Hybrid. Those are the cooling-oriented materials identified in its construction. The product also includes edge foam, which is the edge-related component Novaform lists alongside its wrapped coils and base foam.

Amerisleep identifies Bio-Pur foam and HIVE zoned support in the AS3 construction. The AS3 is an all-foam mattress in this comparison, so it does not use the wrapped-coil hybrid format Novaform describes. Amerisleep does not provide a separate edge-foam specification in the facts considered here.

There is no supplied side-by-side temperature result, motion-isolation result, or edge-support measurement for these two mattresses. That means a responsible comparison stops at construction. Novaform offers named phase-change gel, air-channel foam, edge foam, and wrapped coils. Amerisleep offers an all-foam design with Bio-Pur foam and HIVE zoned support.

If your first priority is choosing between hybrid and foam construction, our guide to hybrid mattress versus memory foam can help frame that broader material decision. For this matchup, do not assume that a component name guarantees the same temperature, motion, or perimeter experience for every sleeper.

Policies, materials, and value

Both mattresses carry a 20-year warranty, according to their manufacturers. That shared term prevents warranty length from deciding the contest. The more meaningful policy difference is that Amerisleep lists a 100-night trial for the AS3 and says shipping and returns are free under its published terms.

Novaform’s official page lists queen and king sizes for the ComfortGrande Advanced Hybrid. Those are the sizes Novaform identifies for this exact model in the details here. Amerisleep says the AS3 is made in the USA with domestic and imported parts.

Both brands say these mattresses are fiberglass-free. Novaform also says its foam is CertiPUR-US certified. These are material and certification details, not a substitute for deciding which construction better fits your needs.

For Novaform-specific details, read our Novaform ComfortGrande Advanced Hybrid review. It is especially relevant if the 14-inch height and coil system are already on your must-have list.

Who should buy each mattress?

Buy the Amerisleep AS3 if: You want a medium, 12-inch all-foam mattress and place real value on Amerisleep’s Bio-Pur comfort foam and HIVE zoned support. It is also the better fit if a direct 100-night trial, free shipping and returns under the brand’s terms, and a fiberglass-free construction are important parts of your buying decision.

Buy the Novaform ComfortGrande Advanced Hybrid if: You specifically want a 14-inch medium hybrid with wrapped coils. Its phase-change gel memory foam, air-channel foam, edge foam, and base foam make it the better construction match for a shopper seeking foam layers over a coil support system.

Skip the AS3 if: Your non-negotiable is a hybrid mattress with wrapped coils. The standard AS3 covered here is all foam, and its HIVE support system does not change that basic format.

Skip the ComfortGrande Advanced Hybrid if: You prefer the lower-profile 12-inch all-foam approach or specifically want Amerisleep’s HIVE zoned support and 100-night trial. Novaform’s listed construction points in a different direction.

Pros and cons

Final verdict: Amerisleep AS3 is the better overall buy

The Amerisleep AS3 wins this comparison because it delivers a focused medium all-foam design with Bio-Pur foam, HIVE zoned support, and a direct 100-night trial. Its 12-inch profile is a straightforward fit for shoppers who want foam construction with a named zoned support feature, plus Amerisleep’s 20-year warranty and fiberglass-free claim.

The Novaform ComfortGrande 14-inch Advanced Hybrid Gel Memory Foam Mattress remains the right answer for a clear buyer type: someone who specifically wants a taller hybrid with wrapped coils. Novaform backs that format with phase-change gel memory foam, air-channel foam, edge foam, base foam, a fiberglass-free claim, CertiPUR-US certified foam, and a 20-year warranty. That is a fair alternative, but the AS3 is the more complete overall recommendation for this head-to-head choice.

Frequently asked questions

Is the Amerisleep AS3 or Novaform ComfortGrande softer?

Both brands describe these exact mattresses as medium. Their construction differs, though: Amerisleep uses an all-foam design with Bio-Pur foam and HIVE zoned support, while Novaform uses foam layers over wrapped coils. No more precise firmness comparison is provided here.

Is the Amerisleep AS3 a hybrid mattress?

The standard AS3 compared here is all foam. Amerisleep sells all-foam and hybrid versions of the AS3, but this comparison is specifically about the standard all-foam AS3.

Does the Novaform ComfortGrande Advanced Hybrid have coils?

Yes. Novaform lists wrapped coils as part of the ComfortGrande Advanced Hybrid’s four-part construction, along with phase-change gel memory foam, air-channel foam, edge foam, and base foam.

Are both mattresses fiberglass-free?

Yes. Amerisleep says the AS3 is fiberglass-free, and Novaform says the ComfortGrande Advanced Hybrid is fiberglass-free.

Which mattress has the longer warranty?

Neither has a longer listed warranty. Amerisleep gives the AS3 a 20-year warranty, and Novaform gives the ComfortGrande Advanced Hybrid a 20-year warranty.