Amerisleep AS3 vs GhostBed (2026): Which Wins?

Written by Romain R, « The Nut ». Medically reviewed by Dr. Jordan Burns.

The Amerisleep AS3 is the better buy for most sleepers. It beats the GhostBed Classic on pressure relief and cooling in NapLab's data, with lower motion transfer, and with a plant-based foam construction and a 20-year warranty that few all-foam beds at this price can match. The GhostBed Classic, now discontinued and replaced by the GhostBed Comfort Foam, does win on bounce and edge support, and it costs less, so if you are a strict stomach sleeper or you sit on the edge of the bed often, that is worth weighing. For everyone else, the AS3 is the pick.

Amerisleep AS3 vs GhostBed Classic: Spec-by-Spec

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Our Winner: Amerisleep AS3

The Competitor: GhostBed Classic

How They Actually Compare

Materials and construction

The AS3 uses Amerisleep's Bio-Pur foam, which substitutes a portion of the petroleum base for plant-derived material. That shows up in the foam's open-cell structure, and NapLab scores the AS3 9/10 for cooling (85.4°F peak). The HIVE layer underneath is hex-perforated in a 5-zone pattern: the perforations are wider under your shoulders and tighter under your hips, so each part of your body gets targeted resistance rather than uniform softness.

The GhostBed Classic takes a different route. Its 1.5-inch Dunlop latex top gives the surface a springy, responsive feel compared to any all-memory-foam bed. Underneath, a 2-inch gel memory foam layer handles the contouring. The layering logic makes sense, but the 4-lb gel memory foam in that second layer can trap heat during extended sleep sessions, despite the aerated latex above it.

Both beds are CertiPUR-US certified and made in the USA, which is important for anyone watching off-gassing.

Firmness and feel

The AS3 sits at a true medium (5/10). That rating is accurate for sleepers in the 130 to 230 lb range. On your side, your shoulder and hip can sink into the foam. On your back, the HIVE layer pushes back under the lumbar without forcing your lower back into extension. It is a balanced feel that works across positions without trying too hard.

The GhostBed Classic is firmer at 6.5/10, which is immediately noticeable. Stomach sleepers and back sleepers over 180 lbs tend to prefer that extra pushback, and the latex surface contributes responsiveness you feel when shifting positions at night. The tradeoff: strict side sleepers, especially those under about 150 lbs, often find the shoulder contact too firm to stay comfortable through a full night.

Cooling

Both beds aim to sleep cooler than a conventional memory foam mattress, but they get there differently. The AS3's Bio-Pur foam has large, interconnected pores that let air move through the top comfort layer continuously. There is no phase-change treatment or gel infusion; the structure does the work. NapLab measured an 85.4°F peak surface temperature on the AS3.

The GhostBed Classic leads with an aerated latex surface, which is inherently more breathable than any foam. That first layer genuinely disperses heat at the surface level. The gel memory foam below complicates things slightly; gel infusion moderates temperature swings but does not eliminate them the way a fully open-cell structure does. In NapLab's tests, though, the GhostBed Classic peaked at 92.7°F, one of the hottest readings it has recorded, so the AS3 is the better pick for hot sleepers.

Motion isolation

Both beds isolate motion well, and the AS3 has the edge. Bio-Pur's slow-recovery foam absorbs movement at the source. NapLab measured 2.11 m/s² of motion transfer on the AS3, 76% below its average. Couples where one partner is a light sleeper typically notice the difference within the first week.

The GhostBed's latex layer introduces more surface transfer by design; that is what creates the responsiveness people like about it. It is still very good: NapLab scores the GhostBed Classic 10/10 too, at 4.80 m/s², versus 2.11 m/s² on the AS3.

Edge support

The GhostBed has a slight edge here, literally. The firmer latex top layer provides more resistance when you sit near the perimeter, and the overall 6.5/10 firmness means less compressible material throughout. The AS3 (NapLab 8.0/10, versus 8.6/10 for the GhostBed) is fine for most sleeping positions near the edge, but you will notice some perimeter give when sitting on the side to put on shoes.

Neither mattress is a dedicated edge-support product; for that, a hybrid with reinforced perimeter coils serves you better. But the GhostBed Classic holds a narrow advantage for couples who need full use of the mattress surface.

Price and long-term value

The GhostBed Classic costs around $848 for a queen per NapLab, roughly $300 less than the AS3 queen at $1,149 on sale ($1,749 regular) with code BFCM ($600 off the AS2, AS3, AS5 and Organica through December 9). The Classic has been discontinued and replaced by the GhostBed Comfort Foam. For sleepers who are price-constrained or buying for a guest room, the GhostBed is a sensible answer.

Spread over 10 years, the per-night cost gap is small. Over 10 years at the listed queen prices, the AS3 costs about 31 cents per night versus 23 cents for the GhostBed, a difference of about 8 cents for better pressure relief and cooling in NapLab's data.

Trial and warranty

Both beds carry a 20-year warranty. NapLab's historical Costco listing gives the GhostBed Classic a 365-night trial, matching the AS3's current 365-night trial (30-night minimum before returns). The Classic is discontinued; check availability and current trial and warranty terms with the seller before buying. Both warranties require normal use on a supportive base; covered-defect language differs.

Who should consider the GhostBed Classic instead

A few groups genuinely prefer the GhostBed in this matchup. If you sleep primarily on your stomach and want a firmer surface that keeps your hips from sinking, the 6.5/10 firmness is actually better calibrated. If you are a combination sleeper who moves a lot and likes the feeling of being on the mattress rather than in it, the latex responsiveness serves you better. The GhostBed Classic is discontinued, so check the seller's current availability and terms before considering it.