by Amerisleep AS3 vs Nest Bedding (2026): Side-by-Side Comparison
One medium-feel all-foam mattress with a 100-night trial, one retailer offering multiple models with a 365-night trial and a lifetime renewal exchange. The right pick depends on how you sleep and what you want from the trial.
The Amerisleep AS3 is the pick for most people asking this question. It is a medium-feel all-foam mattress designed to balance support and softness for every sleep position, with a 100-night trial, a 20-year warranty, and free shipping and returns. Nest Bedding is a retailer with several models, including the Owl Natural Latex Hybrid and the Raven Flippable Hybrid, each carrying a 365-night trial and a Lifetime Renewal Exchange. If you want a longer trial window and the option to adjust the feel later, Nest Bedding is worth a look. If you want a single medium-feel foam mattress with a clear 20-year warranty and free returns, get the AS3.
Amerisleep AS3
A medium-feel all-foam bed that Amerisleep builds to balance support and softness for every sleep position.
Saatva Classic
- 365-night home trial gives you a full year to decide
- Lifetime warranty covers the mattress for as long as you own it
- Free white-glove delivery includes old mattress removal
- Three comfort levels (Plush Soft, Luxury Firm, Firm) and two heights let you dial in the feel
- Innerspring construction, so it is not an all-foam option like the AS3
- Choosing between three comfort levels adds a decision most shoppers do not want
- White-glove delivery requires scheduling, unlike the AS3's free shipping
The Saatva Classic is a strong runner-up if you want a longer trial, a lifetime warranty, and the convenience of in-home delivery with old mattress removal. It is an innerspring mattress, not an all-foam bed, so it will feel different from the AS3. Pick it if you prefer coils and want a full year on trial.
Amerisleep AS3 vs Nest Bedding: key specs
| Spec | Amerisleep AS3 | Nest Bedding (Owl / Raven) |
|---|---|---|
| Construction | All-foam (Bio-Pur) | Owl: natural latex hybrid. Raven: flippable memory foam hybrid |
| Feel | Medium | Varies by model and firmness selection |
| Height | – | Owl: 14 inches. Raven: 12 inches |
| Trial | 100 nights | 365 nights |
| Warranty | 20 years | Lifetime Renewal Exchange (one comfort layer swap) |
| Shipping | Free shipping and returns | – |
| Feel adjustment | Fixed medium feel | One Lifetime Renewal Exchange to alter feel |
| Sizes | Standard sizes | Twin through Split Cal King |
Construction and materials
The Amerisleep AS3 is an all-foam mattress built around Bio-Pur, a plant-based foam. Amerisleep positions the AS3 as a medium-feel bed that balances support and softness for every sleep position. The construction is a single all-foam design, which means no coils and a consistent feel across the surface.
Nest Bedding sells multiple models rather than one mattress. The Owl Natural Latex Hybrid uses a natural latex comfort layer over an individually wrapped coil system, and it stands 14 inches tall. The Raven Flippable Hybrid is a memory foam hybrid you can flip, standing 12 inches tall. Nest Bedding describes its hybrids as US-made with individually wrapped coils, and its foams are CertiPUR-US certified.
The practical difference: the AS3 gives you one foam build with a defined medium feel. Nest Bedding gives you a choice between a latex hybrid and a flippable foam hybrid, each with its own feel profile. If you already know you want latex or coils, Nest Bedding has an option. If you want a straightforward medium foam bed, the AS3 is the simpler path.
Feel and firmness
The AS3 has a medium feel. Amerisleep builds it to balance support and softness, which makes it a neutral starting point for side, back, and combination sleepers. You do not have to choose a firmness level; medium is what you get.
Nest Bedding lets you select firmness on some models. Its buying guidance points lighter sleepers (under 140 lbs) and average-weight sleepers toward different feels, and its firm option is described as a firm sleeping surface with a plush pillow top. Nest Bedding notes that its luxury hybrid mattresses are available in dual firmness, which is useful if two people in the bed want different feels. If firmness choice matters to you, Nest Bedding offers more control here than the AS3's single medium feel.
Pressure relief
Nest Bedding's Owl uses natural latex, which is more responsive and buoyant than memory foam, so it relieves pressure without the deep sink. The Raven uses memory foam, which conforms more closely to the body. Both Nest Bedding hybrids include individually wrapped coils. If you want a foam mattress, the AS3 or the Raven fits. If you want a responsive surface that lifts you, the Owl fits better.
Cooling
The AS3's Bio-Pur is a plant-based foam. As an all-foam bed, it does not have coils.
Nest Bedding's Owl is a latex hybrid. Latex sleeps cooler than memory foam because it is naturally breathable, and the coil layer underneath adds airflow through the mattress. The Raven is a memory foam hybrid. If you sleep hot, the Owl's latex-and-coil build may suit you better than an all-foam bed.
Motion isolation
The AS3, as an all-foam bed, has no coils.
The Owl and Raven both use individually wrapped coils. If you share the bed with a restless sleeper and motion transfer is a priority, the AS3's all-foam build may appeal to you. If you want coils for support and edge stability, Nest Bedding's hybrids include individually wrapped coils.
Trial period and warranty
The AS3 comes with a 100-night trial and a 20-year warranty, with free shipping and returns. Returns are free if it does not work out.
Nest Bedding's Owl and Raven each carry a 365-night trial, which is longer than the AS3's 100 nights. Nest Bedding also offers a Lifetime Renewal Exchange: a comfort layer exchange you can redeem once, at any time. That is a different kind of coverage than a traditional warranty.
On trial length alone, Nest Bedding gives you more time. On warranty structure, the AS3's 20-year warranty is a standard defect warranty, while Nest Bedding's Lifetime Renewal Exchange is a feel-adjustment benefit. These are different tools, and neither is strictly better. If you want time to decide, Nest Bedding wins on trial length. If you want a long fixed warranty on a simple foam bed, the AS3 delivers that.
Price and value
We do not list prices in this comparison because mattress pricing changes with sales and promotions. What matters is the value structure: the AS3 gives you a medium-feel all-foam mattress with a 100-night trial, a 20-year warranty, and free shipping and returns. Nest Bedding gives you a choice of models with a 365-night trial and a Lifetime Renewal Exchange. Check current pricing on both sites before you buy, and factor in any delivery fees, since the AS3 includes free shipping and Nest Bedding's shipping terms should be confirmed at checkout.
Who should buy each mattress
Buy the Amerisleep AS3 if: you want one medium-feel all-foam mattress without having to choose between firmness levels or models, you sleep across multiple positions and want a balanced feel, or you prefer a straightforward 20-year warranty with free shipping and returns. It is the simpler decision if you do not want to research multiple models.
Buy Nest Bedding if: you want a 365-night trial instead of 100 nights, you like the idea of a Lifetime Renewal Exchange to adjust the feel down the road, or you specifically want a latex hybrid or a flippable foam hybrid rather than an all-foam bed. It also makes sense if you want to choose a firmness level based on your weight and sleep position. Confirm the warranty terms and shipping details with Nest Bedding before purchasing.
The Amerisleep AS3 is the pick for most buyers: a medium-feel all-foam mattress with a 100-night trial, a 20-year warranty, and free shipping and returns, with no model selection required. Nest Bedding earns its place for shoppers who want a longer 365-night trial, a Lifetime Renewal Exchange, and a choice between a latex hybrid and a flippable foam hybrid. Side sleepers and combination sleepers who want a balanced medium feel should get the AS3. Shoppers who want more trial time, a feel adjustment later, or a coil-based build should look at Nest Bedding.
Frequently asked questions
Is Amerisleep AS3 or Nest Bedding better for side sleepers?
The AS3's medium feel and all-foam construction suit side sleepers. Nest Bedding's Owl uses latex and the Raven uses memory foam. Side sleepers who want a foam feel should lean toward the AS3 or the Raven. Side sleepers who want a latex surface should look at the Owl.
Which has a longer trial, Amerisleep or Nest Bedding?
Nest Bedding's 365-night trial is longer than the AS3's 100-night trial. If trial length is your deciding factor, Nest Bedding gives you more time. Confirm the trial terms with Nest Bedding at purchase, since policies can vary by model.
Which mattress sleeps cooler, the AS3 or Nest Bedding?
The Owl's latex-and-coil construction differs from an all-foam bed like the AS3. The AS3's Bio-Pur foam is an all-foam option. The Raven is a memory foam hybrid. Your answer depends on which Nest Bedding model you are considering.
Does Nest Bedding have a fiberglass problem?
Nest Bedding states its foams are CertiPUR-US certified. If fiberglass in the cover or core is a concern, review the materials list on each product page or ask Nest Bedding directly before you order.
Can I try both mattresses at home?
Both brands offer home trials: the AS3 with 100 nights and Nest Bedding with 365 nights. You can purchase either and return it within the trial window if it does not work out. The AS3 includes free returns. Check Nest Bedding's return process and any associated fees before buying.