When you purchase through our links, we may earn a commission at no extra cost to you. As an Amazon Associate, DreamSlumber earns from qualifying purchases. Learn more.
Looking for a memory foam mattress but feeling overwhelmed by endless options and conflicting online reviews? Let us introduce you to two brands, Nectar and Amerisleep, which are popular in the mattress market. Each offers the best comfort and quality that sets them apart from generic foam competitors. In our in-depth Nectar vs Amerisleep comparison, we will dissect their core specs, such as firmness level, cooling, motion isolation, and pressure relief. This detailed face-off will also evaluate their edge support, durability, pricing, and policies. So, scroll down to compare the Nectar Classic and Amerisleep AS3 side-by-side to pick the best fit for your sleep position, body weight, and bedroom setup.
Nectar vs Amerisleep AS3: At-a-Glance Specs & Key Differences
Your slumber needs may differ from your partner’s and can be specific to your health conditions. That is why, when selecting between Nectar and Amerisleep AS3, you must compare their specs and core features. These help you understand how each mattress’s build, cooling, support, and warranty cater to your position and health preferences. Nectar offers dense memory-foam contouring and policy-backed longevity, whereas Amerisleep AS3 uses plant-infused Bio-Pur® for cooling.
The table below compares their core specifications:
| Spec | Nectar Classic (Queen) | Amerisleep AS3 (Queen) |
| Type | All-foam memory foam | All-foam with Bio-Pur® comfort foam |
| Price (Queen) | Check Latest Price | Check Latest Price |
| Height | 12″ | 12″ |
| Firmness (1–10) | Medium-firm (approx. 6-6.5/10) | Medium (approx. 5-6/10) |
| Cover & Cooling | Quilted Nectar cooling cover Gel-infused foam | Refresh Cooling Cover Open-cell Bio-Pur® |
| Motion Isolation | High (classic memory-foam dampening) | High-Medium (responsive foam) |
| Edge Support | Moderate | Moderate (some testers rate 3.5/5) |
| Trial & Warranty | 365-night trial Forever Warranty | 100-night trial 20-year Warranty |
| Best Suited Sleep Positions | Side/back sleepers with medium-firm contouring support | All positions (side, back, combination) for many users |
| Ideal / Recommended Weight Range | Best for sleepers not extremely heavy (under ~ 230-250 lb) to maintain support vs sag | Average weight to moderately heavy sleepers; heavier users might want firmer cores or hybrid variants |
| Best For | Deep pressure relief shoulders and hips, partner motion control | Cooler-sleeping foam feel with easier movement |
| Off Gassing | Some initial “new mattress” smell expected, which tends to dissipate in a couple of days | Foam mattresses generally have some off-gassing, less intense with an open-cell / ventilated design |
Source: brand/retailer and reviews
Nectar vs Amerisleep: Category-by-Category Breakdown
When selecting between Nectar and Amerisleep mattresses, start by knowing your sleep style and what level of support your body needs. When looking at their queen-size comparison, each offers a different comfort, responsiveness, cooling, and motion control. Nectar Classic serves better pressure-relieving contouring, while Amerisleep highlights plant-based foam with a cooler and more responsive feel. Let’s see a detailed breakdown of how each mattress performs on important sleep features:
Price & Value
When buying a mattress, you will notice frequent fluctuations in price due to various sales and promotional campaigns. Nectar is known to provide sitewide discounts and retail promos on mattress bundles and seasonal offers. This lowers the prices compared to its memory foam competitors. Amerisleep AS3 also provides periodic sales on its site. Their costs differ by a huge margin, with Nectar mattresses giving budget-friendly options under $1,000 while Amerisleep AS3 costing above $1,000.
However, each brand offers different value to the customers. Nectar’s 365-night trial and Forever Warranty reduce risk for buyers who worry about fit or long-term sag. Amerisleep offers features such as plant-based Bio-Pur® foam, zoned HIVE® support, and an industry-standard 20-year warranty. It claims that its mattresses are made in the U.S., which is important to some buyers. Based on this comparison, Nectar provides better pocket-friendly value with a lower Nectar vs Amerisleep price after discounts.
Winner: Nectar
Construction & Materials
To understand the quality of build and material, compare Nectar Memory Foam vs Bio-Pur Foam. The Nectar Classic uses a cool-to-touch outer cover on top of foam layers that conform to the curves of the body. The foam stack includes a top cooling layer with a memory-foam comfort layer, a transition layer, and a high-density polyfoam base for durability. All foams used in Nectar models are certified by CertiPUR-US®, which shows independent testing for emissions and material content. Its construction creates a slow-responding feel and good pressure relief for the shoulder and hip zones.
The AS3 includes a breathable Amerisleep Refresh Cooling Cover over a 3″ layer of plant-infused Bio-Pur® comfort foam. This design responds and rebounds faster than traditional memory foam. Under these layers, it has a zoned HIVE® transition layer with different firmness zones to support hips and shoulders, and a dense support core. The open-cell and plant-modified foam gives a cooler sleeping surface and also allows you to change positions more easily than memory foam mattresses.
- Nectar’s classic memory foam gives a hug-like sensation, which also dampens motion. This makes it the best mattress for couples, motion transfer, giving them uninterrupted sleep.
- AS3 offers better and faster responsiveness, making movement easier with the Bio-Pur® foam bouncing back when you change sleeping position.
- Nectar’s slower response gives better contouring around pressure points, while AS3’s zoned design targets specific areas for relief.
- Both provide good edge support, though AS3’s more responsive foam feels more stable when sitting on the edge of the mattress.
- AS3 gives a cooler sleep surface due to its open-cell plant-based foam and advanced cooling cover technology.
Based on the comparison, the better choice depends on the feel you prefer: Nectar gives better support, whereas AS3 wins for responsiveness. Overall, Amerisleep AS3 has an edge over Nectar due to its more advanced construction.
Winner: Amerisleep AS3
Buy AS3 for Cooler Comfort and Better Responsiveness
Firmness & Feel
Both brands offer medium-firm feels, but the one that suits you depends on your body’s weight and sleep preferences. Let us discuss how each mattress supports different body types and sleeping positions:
- Under 150 lb: Both beds feel slightly softer for lighter sleepers. Nectar’s slow foam cradles shoulders and hips for side sleepers. AS3 still feels medium but gives better pushback for repositioning.
- Between 150-230 lb: The medium-firm feel of both mattresses works well for most people in this weight range. Nectar provides deeper contouring for side sleepers, while AS3 supports back and combo sleepers who change position at night.
- Over 230 lb: Heavier sleepers need a firmer hybrid or a model that is rated for higher weights to avoid excess sinkage.
Therefore, on comparing Nectar vs Amerisleep for heavy sleepers 230 lbs, neither serves their sleep needs due to their medium firm feel.
- Side Sleepers: Nectar’s slow-responding foam works better for side sleepers because it provides pressure relief around the shoulders and hips. AS3’s medium firmness feel also works well for most side sleepers, but the responsiveness means less contouring that some people need for joint relief.
- Back and Combo Sleepers: AS3’s mattresses work best for these sleepers as they give a more responsive feel for changing positions. Nectar can work for back sleepers too, but the slower response might feel restrictive if you want to change positions frequently.
- Stomach Sleepers: This sleep position requires firmer support to prevent your midsection from sinking too deeply into the mattress. Lighter stomach sleepers might find AS3 Medium better if they don’t sink in too much.
Winner (by position):
- Side: Nectar
- Back/Combo: Amerisleep AS3
- Stomach: Amerisleep AS3 for stomach sleepers under 230 lb bodyweight
Check Out Amerisleep AS3 and Buy Now
Cooling & Temperature Regulation
Temperature regulation is an important factor when investing in a memory foam mattress, since traditional foam traps body heat throughout the night. Both Nectar and Amerisleep AS3 address this concern via different approaches that give different results for hot sleepers.
Nectar addresses cooling through their breathable cover on top of gel-infused memory foam layers. This design, with 60% more cooling fibres, draws heat away from your body. The mattress cools well for poor blood circulation, though it has a classic memory foam feel that some sleepers find warmer.
Amerisleep AS3 provides temperature regulation with its advanced materials and cover technology. The Refresh Cover features fibers that draw heat from your skin, keeping your sleeping surface an average of 7° cooler over an eight-hour night. This cooling effect works alongside their plant-based Bio-Pur® foam, which uses an open-cell structure that allows air to flow more freely through the mattress.
For hot sleepers, the Amerisleep AS3 has a clear edge. In side-by-side tests, it shows better cooling performance than the Nectar Classic
Winner: Amerisleep AS3
Feel Cooler Tonight, Buy Amerisleep AS3
Motion Isolation
If you share the bed with your partner or are a sensitive sleeper, the motion isolation feature of a mattress ensures you get uninterrupted sleep. Nectar’s slow-responding memory foam isolates movement better, absorbing any kind of pressure and movement. It performs the best in the “glass of wine” test, where movement on one side barely registers on the other side of the mattress. Amerisleep AS3 also controls the motion transfer, but its responsive foam is bouncier than Nectar’s.
Therefore, its motion isolation memory foam is weaker than traditional memory foam models. Both mattresses are good choices to use in beds for couples because they do a good job of isolating motion. However, on comparing Nectar motion isolation vs Amerisleep AS3, couples prefer the Nectar mattress due to its slower-responding foam construction.
Winner: Nectar
Sleep Undisturbed, Buy Nectar Classic
Edge Support and Usable Surface Area
To see if a mattress will maintain its shape and structure over the years, you must see the strength of reinforcement at its edges. Without it, the mattress may lose its usable surface if you sit or sleep near the edges. Nectar and Amerisleep AS3 both use an all-foam construction. However, they lack the perimeter reinforcement available in hybrid mattresses, scoring low in edge support rating all-foam.
Amerisleep AS3 edge support test gives it an average and decent score. Similarly, Nectar also features moderate edge support, which is expected from a foam mattress without any reinforcement features. Therefore, if you are planning to buy any one of these mattresses, avoid sitting on the edge for long periods. The outer 6-8” sleep surface may feel insufficient for couples, hence they must opt for king sizes. Both mattresses provide comparable edge support and usable surface area.
While neither matches the reinforced perimeter of a hybrid, the Amerisleep AS3 shows slightly better stability along the edges thanks to its firmer transition layer. Nectar remains serviceable, but AS3 feels a bit more secure when sitting or resting near the sides. Couples should still consider a king-size for maximum usable surface.
Winner: Amerisleep AS3
Pressure Relief and Spinal Alignment
Pressure relief and spinal alignment features of a mattress support your body’s natural curves, minimising sleep disruptions. Nectar’s slow-responding memory foam hugs the body and spreads weight across a wider surface area. This reduces pressure points at the shoulders and hips for strict side sleepers under about 230 lb. It also works best for side sleepers who need cushioning at the shoulders and hips.
Amerisleep AS3 uses responsive Bio-Pur® foam and HIVE® zoned support to keep the spine aligned while giving a springier feel. This combination of features helps back and combo sleepers stay “on” the mattress rather than making them feel stuck. This also makes it easier to change positions and maintain midline support.
This comparison shows that Nectar could be the best choice if you have back pain and you are a side sleeper, as it gives superior pressure relief and contouring. On the other hand, back and combination sleepers prefer Amerisleep AS3 for its bouncier feel and zoned support. Stomach sleepers should consider a firmer option than either if they need extra lift at the hips.
Winner: Position-based
- Side Sleepers: Nectar Classic
- Back/Combo: Amerisleep AS3
Pick Amerisleep AS3 For Zoned Support
Durability & Materials Quality
Durability depends on two factors, which are the materials used in a mattress’s construction and the manufacturer’s warranty and support. For a simple rule of thumb, higher density means more durability and less long-term sagging. Indentation Load Deflection (ILD) measures firmness, and the higher the ILD number of the foam, the firmer it is. High-density foams conform more to the body and provide better durability due to having more material packed into each cubic foot.
Manufacturers do not publish exact layer densities, so warranty and trial policies act as useful proxies for the Nectar vs Amerisleep durability comparison. Nectar’s year-long trial and Forever Warranty show a long-term policy advantage that reduces buyer risk over the mattress’s lifetime. Amerisleep warranty and return policy back its beds with a 20-year warranty and a 100-night trial.
For most buyers who value policy-backed investments, Nectar’s warranty and trial give an edge when density numbers are not public. Hence, between the Nectar Forever Warranty vs Amerisleep 20-year warranty, Nectar wins. Since both approaches offer meaningful durability advantages, neither holds a clear lead here.
Winner: Tie
Get Nectar’s Forever Warranty Protection
Shop Amerisleep AS3 for Long-Term Foam Stability
Shipping, Off-Gassing, and Setup
Nectar ships their mattresses compressed and rolled in a compact box that’s surprisingly small considering you’re receiving a full-size memory foam mattress. The compression process allows the mattress to fit through doorways and up stairs without the logistics challenges of traditional mattress delivery. You can expect your Nectar mattress to expand within 24-72 hours after unboxing. There are no shipping fees within the contiguous U.S.
Amerisleep AS3 follows a similar approach with its bed-in-a-box delivery system. The company currently doesn’t offer white glove delivery service, so you’ll handle the unboxing process yourself. New foam sometimes gives a mild chemical odor called off-gassing. For most modern foam mattresses, the strongest smell fades within hours to a few days, and in some cases, a faint odor can persist longer for sensitive noses. Both Nectar and Amerisleep mattresses highlight their clean foam manufacturing and CertiPUR-US certifications.
The off-gassing odor dissipates within 24-48 hours with proper ventilation. Here are a few quick setup tips:
- Remove the mattress from its packaging in the room where you plan to use it, since it will be difficult to move once expanded.
- Cut the plastic wrapping carefully and allow the mattress to expand in a well-ventilated room.
- Avoid sleeping on it for at least 4-6 hours to ensure full expansion.
Winner (Setup): Tie
Sizes, Weight, and Bedroom Fit
Both brands sell standard mattress sizes (Twin/Twin XL, Full, Queen, King, California King) and supply size guides so you can match sheets and frames. The standard Nectar queen vs Amerisleep AS3 queen dimensions serve the majority of buyers and fit most rooms and platform or slatted bases.
Both Nectar and Amerisleep AS3 work well with platform and adjustable bases. However, you must note that Amerisleep mattresses mention that its memory-foam mattresses are not compatible with every support type (box springs are not recommended). If you plan to use an adjustable base, both brands offer compatibility and even sell compatible frames and adjustable bases.
So, always check the manufacturer’s size guide and frame recommendations before you buy. All-foam mattresses compress more under weight than hybrid coil beds. If you or a partner weighs above 230 lb, consider upgrading to a hybrid or a model rated for higher weights. Also, review weight ratings for the bed frame as well.
Winner (Size): Tie
Returns, Trials, and Risk-Free Testing
Trial length and easy return policy show how risk-free your purchase is. Nectar offers a 365-night trial and a Forever Warranty to show the manufacturer’s confidence in its build quality. The brand requires a minimum break-in period of 30 nights before you can initiate a return, and the warranty doesn’t cover environmental or accidental damage. Amerisleep mattresses provide a 100-night trial, free returns, and a 20-year warranty (with the first ten years as full replacement and the next ten prorated). These terms make both brands safe buys, but Nectar’s longer trial gives more time to test fit and comfort.
Hence, this comparison highlights Nectar’s 365-night trial and Forever Warranty, which creates superior risk protection for customers. It serves best for those who are uncertain about switching to memory foam or need extended time to evaluate the mattress’s performance.
Winner: Nectar
Try Nectar Classic Risk-free For a Year
Nectar vs Amerisleep AS3: Which is Better?
Both Nectar and Amerisleep AS3 aim to solve sleep problems, but they do it differently. Nectar delivers a deep, contouring hug and excellent motion control for couples, while Amerisleep AS3 brings quicker pushback, zoned support, and a cooler sleep thanks to its Bio-Pur® build.
Let us now see how each one scores in important metrics and stands as the final winner in this Nectar Classic vs Amerisleep comparison:
| Category (max 10) | Nectar Classic | Amerisleep AS3 | Why? |
| Price and Value | 9 /10 | 8 / 10 | Nectar offers consistently lower pricing and frequent promos |
| Construction | 9 /10 | 10 /10 | AS3 uses Bio-Pur® foam, a zoned HIVE® layer, and a superior cooling cover |
| Firmness and Feel | 8 /10 | 9 /10 | AS3 feels more responsive and easier to move on |
| Cooling | 7 / 10 | 9 / 10 | AS3 uses Open-cell Bio-Pur® and Refresh cover |
| Motion Isolation | 9 / 10 | 8 / 10 | Nectar features dense memory foam that soaks up motion. |
| Edge Support | 7 / 10 | 9 / 10 | AS3’s firmer transition layer gives more stability along the perimeter. |
| Pressure Relief | 9/ 10 | 9 / 10 | Tie as both perform the same |
| Durability | 9/10 | 9/10 | Show similar long-term performance expectations |
| Trials and Returns | 10 / 10 | 9/ 10 | Nectar gives better value with a 365-night trial and a Forever Warranty |
| Total (out of 90) | 77/ 50 | 80 /90 | Amerisleep wins on construction and edge support. |
Overall Winner: Amerisleep AS3
After comparing feel, cooling, motion control, edge support, pressure relief, durability, pricing, and policies, the Amerisleep AS3 comes out as the stronger overall performer. In the Nectar vs Amerisleep comparison, AS3’s Bio-Pur® foam, zoned HIVE® support system, and advanced cooling cover make it a better choice for sleepers who want a cooler, more responsive, and more supportive all-foam mattress. Nectar Classic still remains a solid option for buyers seeking strong value, excellent motion isolation, and the security of a 365-night trial and Forever Warranty. It works well for side sleepers and couples who prioritise contouring and reduced partner disturbance.
When comparing Nectar vs Amerisleep cooling for hot sleepers, the Amerisleep AS3 remains a good option with open-cell Bio-Pur® foam and responsiveness. Overall, choose Nectar Classic for the best value and calmer nights. Choose Amerisleep AS3 if cooling and repositioning are at the top of your list.
Nectar vs Amerisleep AS3: Frequently Asked Questions
Which Mattress is Best for Side Sleepers Wanting Deep Pressure Relief: Nectar Classic or Amerisleep AS3?
For side sleepers who need deep pressure relief, Nectar Classic is a better pick. Its slow-responding memory foam layers hold the shoulders and hips, spreading weight and reducing pressure hotspots. This helps strict side sleepers feel less pressure overnight, especially those weighing under 230 lb. Hence, Nectar’s memory foam provides the best contouring pressure relief as compared to Amerisleep.
Which One is Best for Back/Combo Sleepers Who Change Positions Often: Nectar Classic or Amerisleep AS3?
Amerisleep AS3 is the better choice for back and combo sleepers who change positions at night. Its plant-based Bio-Pur® foam and zoned HIVE® support provide responsiveness and align the spine in neutral line. This bounciness keeps you on the mattress during position changes, making it easier to reposition without feeling stuck. Therefore, Amerisleep mattresses offer the best overall comfort for active sleepers compared to the Nectar Classic.
Which One Between Nectar and Amerisleep Offers Better Motion Isolation For Couples?
Nectar Classic offers stronger motion isolation for couples thanks to its slow and dense memory foam layers that absorb movement effectively. Tests using “glass of wine” methods show minimal transfer on Nectar-style foam beds. Amerisleep AS3 also isolates motion for a responsive foam, but its springier feel transfers more energy as compared to Nectar.
Which Brand Uses Better Material Quality: Nectar Classic or Amerisleep AS3?
Amerisleep uses higher-quality material due to its proprietary Bio-Pur® foam. The foam incorporates plant-based materials with an open-cell structure that enhances breathability and responsiveness. AS3’s durability and cooling properties are also superior to standard memory foam. Nectar Classic provides CertiPUR-US® certified foams at an affordable price. However, Amerisleep’s materials maintain a premium quality.
Which Brand is Best for Hot Sleepers: Nectar Classic or Amerisleep AS3?
Amerisleep AS3 is the better pick for hot sleepers because of its open-cell Bio-Pur® foam and Refresh Cooling Cover. These components work best for airflow and reduce heat retention than many gel memory-foam designs. Nectar Classic also includes cooling layers, but many hot sleepers report the AS3’s breathable build feels cooler overnight.
How Does Nectar Classic’s Warranty and Trial Compare With Amerisleep AS3?
Nectar Classic offers a 365-night trial and a Forever Warranty, giving extended time and long-term coverage for defects and sag. Whereas Amerisleep AS3 provides a 100-night trial and a 20-year warranty (full replacement in early years, prorated later). This makes Nectar the safer option for long-term testing.
