Amerisleep AS3 vs Purple RestorePlus: Which Mattress Wins?

Amerisleep’s AS3 is the all-foam model, distinct from its separate AS3 Hybrid. Purple also sells other Restore mattresses; their construction and price are not interchangeable with RestorePlus. For the broader brand matchup, see our Amerisleep vs. Purple comparison.

How we compared

We compared the Amerisleep AS3 and Purple RestorePlus using each brand’s official product pages, trial policies, and warranty documents on September 29, 2026. We did not sleep on these two models or measure firmness, surface temperature, motion transfer, or edge support. Sleep-position advice follows each brand’s advertised firmness; prices and promotions change, so the cart total is the one that counts.

What separates these two mattresses?

The key decision is an all-foam mattress with a medium feel versus a hybrid with a three-inch GelFlex Grid, responsive foam, and zoned coils. AS3 is currently listed at $1,249 on sale for Queen; Purple lists RestorePlus Queen at $3,599.

The difference between AS3’s Queen sale price and Purple’s listed Queen price is $2,350. Amerisleep’s regular Queen price is $1,749; compare the checkout total for each model before ordering.

Pros and cons at a glance

• AS3 pros: lower Queen price, medium foam feel, 20-year warranty.
• AS3 con: no coil bounce; skip it if you dislike memory foam.
• RestorePlus pros: distinctive Grid, zoned coils, medium-soft hybrid feel.
• RestorePlus cons: higher Queen price and a $250 return transportation charge.

For Queen, Amerisleep lists AS3 at $1,249 on sale ($1,749 regular) and Purple lists RestorePlus at $3,599. Both brands offer other sizes; check the size selector for the exact configuration you want.

How do the materials and support differ?

The all-foam AS3 combines Amerisleep’s Bio-Pur memory foam with HIVE technology. Amerisleep describes Bio-Pur as plant-based memory foam and calls the AS3 medium. The mattress is 12 inches tall and includes Refresh Cooling Technology. These details help you identify the feel and build, though your experience of contouring and temperature will depend on your preferences and sleep setup.

RestorePlus starts with a different sensation under the body. Purple places a three-inch GelFlex Grid above comfort foam and a three-zone responsive coil system, with an edge-support system and SoftFlex cover. Purple calls the model medium-soft and describes the Grid as pressure-relieving and heat-dissipating. In practical terms, expect a surface that feels unlike slow-sinking memory foam: the Grid flexes under pressure while the coils provide a spring-based support core. If you have never tried Purple’s Grid, the trial is especially relevant.

The 12-inch AS3 has no coil unit in this all-foam version. That construction can appeal if you prefer a more uniform, cushioned foam surface or want to avoid the more springy response of a hybrid. If you are shopping for coils because you prefer bounce or do not want an all-foam bed, RestorePlus is the clear match between these two. Do not mistake the AS3 Hybrid for the AS3 discussed here; it is a separate version.

Which feel works for your sleep position?

Side sleepers: Both brands position these mattresses for side sleeping, but they approach pressure relief differently. Amerisleep calls the AS3 medium and uses foam to cushion the body. Purple describes RestorePlus as medium-soft and highlights the Grid’s pressure-relieving flex. If you want classic foam contouring, start with the AS3. If you want a more buoyant surface with a coil core, try RestorePlus. Body size and preference matter: a label is not a guarantee of comfort.

Back sleepers: The AS3 is a good first look if you want a medium, all-foam mattress and prefer a consistent surface without springs. Purple positions RestorePlus as supporting spinal alignment through its Grid and zoned coils, and includes back sleepers among its intended users. If you like a softer initial feel and a more responsive core, RestorePlus may suit you. If your back comfort depends on a particular firmness, your own trial experience matters more than either brand’s general positioning.

Stomach sleepers: Be cautious with the medium-soft RestorePlus if you tend to prefer a firmer surface. The AS3’s medium feel may also be too yielding for some stomach sleepers, depending on body shape and preference. Neither brand’s general position label can establish which mattress will keep you comfortable all night. If you already know you need a distinctly firm surface, compare firmer models before choosing between these two.

Combination sleepers: Purple explicitly lists combination sleepers among the RestorePlus audience, and its coils create a responsive hybrid feel. Amerisleep presents the AS3 as suited to varied sleeping styles, but it remains an all-foam mattress. If you turn frequently and dislike the feeling of sinking into foam, RestorePlus is worth considering. If you switch positions but like a close, cushioned feel, AS3 remains the lower-cost pick.

Couples: The meaningful question is what each partner likes, not which one is universally better for couples. Foam avoids the traditional innerspring sensation, while RestorePlus combines a flexible Grid with coils. If one partner is more sensitive to movement, compare how each surface feels to both of you during the home trial.

Cooling, edges, and getting in and out of bed

Cooling: Amerisleep names Refresh Cooling Technology in the AS3; Purple says RestorePlus sleeps up to three times cooler and describes airflow through its Grid and coils. Those are each brand’s product claims, not a head-to-head temperature result.

Edges: Purple lists an edge-support system; Amerisleep does not list a comparable feature for the AS3. If sitting or sleeping near the edge matters to you, assess that feel during the trial.

Motion: Neither brand gives a directly comparable motion-transfer result for these two models. The AS3 is all foam, while RestorePlus combines a Grid with coils; couples sensitive to movement should try both surfaces.

The RestorePlus stands 13 inches tall; AS3 is 12 inches. That one-inch difference can affect how high your finished bed sits. Measure your frame, foundation, and preferred total height before ordering. Purple recommends a supportive bed frame; follow the structural-support requirements for whichever mattress you choose.

Trial, returns, warranty, and delivery

Amerisleep offers a 100-night trial and free returns. Purple offers a 100-night trial, asks customers to keep the mattress for at least 21 nights before requesting a return or exchange, and deducts a $250 transportation charge from eligible refunds, subject to policy exceptions. Both brands offer a trial with a mattress purchase; Purple’s published terms do not state a numerical household trial limit.

The warranty terms differ beyond the headline years. Amerisleep’s limited warranty covers visible sagging greater than 1.5 inches; during years 1–10 it provides a full replacement, though labor and transportation costs are not covered, and years 11–20 are prorated at 50% of the original purchase price plus associated costs. Purple’s limited warranty runs 10 years and covers qualifying visible indentations greater than 1 inch. Amerisleep requires slats no more than 2.75 inches apart; Purple allows no more than 3.5 inches when no additional foundation is used. Amerisleep says AS3 can be paired with an adjustable base, and Purple lists its bases as compatible with its Restore Collection.

A trial and a warranty solve different problems. The trial is the period to decide whether you want to keep the mattress; the warranty addresses covered defects under its terms. A longer warranty does not guarantee a particular comfort lifespan or mean that every issue is covered. Compare the written warranties for exclusions, required support, and how a claim is handled rather than comparing only the number of years.

Amerisleep lists AS3 as shipping within two to seven business days, with free shipping and returns; its customer-service information says mattresses ship as quickly as three to seven working days and directs shoppers to the exact product page for the estimate. Purple’s standard ground delivery generally takes three to eight business days after shipment; its Premier delivery takes seven to ten days. Delivery timing depends on location and stock. Check setup arrangements when you order; neither brand’s delivery should be assumed to include old-mattress removal or in-room setup unless the offer specifies it.

Both warranties cover defects under their terms, not comfort preferences. Save your order confirmation and follow the return steps before removing tags or discarding packaging.

Who should choose the Amerisleep AS3?

Choose AS3 if you want a medium all-foam mattress, prefer a conventional memory-foam feel, and value the lower Queen sale price. Amerisleep offers a 20-year warranty, compared with Purple’s 10-year warranty. The AS3 has a defined construction and feel, and Amerisleep offers it in multiple sizes.

AS3 is not automatically the right mattress just because it wins this comparison. Skip it if you know you do not like memory foam, want the buoyancy of a spring-based support unit, or want the more distinctive Purple Grid sensation. If you need a firm bed, neither AS3’s medium label nor RestorePlus’s medium-soft description should be treated as a firm recommendation.

Who should choose Purple RestorePlus?

Choose RestorePlus if its hybrid design is the point: the GelFlex Grid, comfort foam, three-zone responsive coils, and added edge-support system are a materially different package from an all-foam AS3. It is the better fit for shoppers who already know they enjoy Purple’s Grid or who specifically want a medium-soft hybrid. Its size selector includes Twin XL, Full, Queen, King, California King, and Split King, with prices varying by size.

RestorePlus may make more sense if you prefer a buoyant, responsive surface rather than the close contouring associated with memory foam. Its listed Queen price is $3,599, and Purple provides a 10-year warranty. Those differences do not make Purple a poor choice; it is a more specialized option for shoppers who want the Grid-and-coil feel.

Who should NOT buy either mattress?

Do not buy the AS3 if you dislike memory foam, want a coil-based feel, or already know you need a firm mattress. Its medium all-foam design is not the right starting point for those preferences.

Do not buy RestorePlus if its higher price or potential $250 return charge would make the trial uncomfortable, if you want a traditional slow-contouring foam feel, or if you need a distinctly firm mattress. Its medium-soft label and responsive hybrid construction point in another direction.

Also considered

• Amerisleep AS3 Hybrid: consider it if you want the AS3’s medium feel with coils instead of the all-foam build in this comparison.
• Purple Restore: consider it if you want a different Purple hybrid; compare its own specifications and current price.
• Amerisleep AS2: investigate it if the AS3’s medium feel sounds too soft for your preference.

Final verdict: Amerisleep AS3 wins for most shoppers

Amerisleep AS3 wins overall for shoppers seeking a medium all-foam feel, a 100-night trial, a 20-year warranty, and a lower Queen price. At its $1,249 sale price versus Purple’s listed $3,599, AS3 costs $2,350 less. Start with AS3 if value and conventional memory-foam comfort matter most.

Purple RestorePlus is the better match if you specifically want its GelFlex Grid, zoned coils, and medium-soft hybrid feel. Its listed Queen price is higher, and Purple deducts a $250 transportation charge from eligible returns. Choose based on the feel you want, then account for the trial and return terms as well as the price.

Frequently asked questions

Is Amerisleep AS3 better than Purple RestorePlus?

For most shoppers, yes: AS3 has the lower Queen price, a medium all-foam build, and a 20-year warranty, compared with RestorePlus’s listed $3,599 Queen price and 10-year warranty. Purple is the better match if you specifically want its GelFlex Grid and responsive coils.

Which mattress is softer?

Purple describes RestorePlus as medium-soft; Amerisleep labels the AS3 medium. On those manufacturer labels, RestorePlus is the softer option. Individual comfort can vary, so use the trial to decide whether that difference works for you.

Does Purple RestorePlus have springs?

Yes. Purple lists a three-zone responsive coil system as part of RestorePlus, beneath its GelFlex Grid and comfort foam. It is a hybrid mattress, unlike the all-foam AS3 compared here.

How long is the sleep trial?

Both brands offer a 100-night trial. Purple asks customers to allow at least 21 nights before starting a return or exchange, and deducts a $250 transportation charge from eligible refunds.

Which one has the longer warranty?

Amerisleep offers a 20-year warranty for AS3; Purple offers a 10-year warranty for RestorePlus. Each warranty covers specified defects under its terms, not comfort preferences.

What does each cost in Queen?

Amerisleep AS3 Queen is listed at $1,249 on sale ($1,749 regular); Purple RestorePlus Queen is listed at $3,599. Promotions may change; compare the size you plan to buy.

Is RestorePlus a good choice for side sleepers?

Purple describes RestorePlus as medium-soft and lists side sleepers among its target users. That can make it a reasonable option if you want a softer-feeling hybrid, but the label cannot guarantee pressure relief for your body. Compare it with AS3 during the trial if you are unsure which surface you prefer.