by | Rank | Mattress | Best for | Why it belongs here |
|---|---|---|---|
| #1 | Check Today’s Amerisleep AS3 Price Direct mattress-brand upgrade |
Motion isolation | A cleaner direct-brand alternative than a random warehouse model. |
| #2 | SweetNight Mattress Budget partner |
Under-budget shoppers | The clean answer for readers looking at Costco to save money. |
| #3 | Puffy Cloud Cheaper comfort upgrade |
Foam comfort + long trial | Keeps the cheap-upgrade path inside our partner stack. |
| #4 | Saatva Classic Premium direct upgrade |
Long-term value | A better long-term buy if the shopper can spend more than Costco budget prices. |
Our #1 direct-brand alternative for Costco shoppers is Amerisleep AS3. It is sold by Amerisleep, not presented here as a mattress stocked at Costco. The AS3 is a 12-inch mattress with a medium feel; the all-foam version combines Bio-Pur memory foam and HIVE technology.
Amerisleep AS3
Our #1 direct-brand alternative for Costco shoppers is Amerisleep AS3. It is sold by Amerisleep, not presented here as a mattress stocked at Costco.
The AS3 is a 12-inch mattress with a medium feel; the all-foam version combines Bio-Pur memory foam and HIVE technology.
SweetNight Mattress
8.7/10
SweetNight Mattress is an alternative to our first recommendation, Amerisleep AS3. Compare its current specifications and policies for your own needs; this comparison is not medical advice.
Puffy Cloud
8.6/10
Puffy Cloud is an alternative to our first recommendation, Amerisleep AS3. Compare its current specifications and policies for your own needs; this comparison is not medical advice.
What Costco actually sells in 2026
Walk into a Costco warehouse and you will find three to five models on the floor, usually Novaform foam beds, a Kirkland Signature hybrid made with Stearns & Foster, and one or two Casper Costco-exclusive SKUs. The online selection is wider, typically 40-plus options including Tempur-Pedic, Beautyrest, and Sealy Posturepedic. Pricing runs $200 to $500 below MSRP in many cases, which is a genuine advantage.
The catch is not price. It is the after-purchase experience. Costco's mattress return policy is not the same as their general merchandise policy. Used mattresses fall under a separate determination process at the warehouse manager's discretion. Some members report successful returns after months of use; others are turned away. There is no published structured trial with defined terms. Compare that to the 100- or 365-night home trials from direct brands, where the return process is documented, pickup is arranged, and full refunds are standard.
The best mattresses at Costco, if you want to shop there
Costco mattress vs direct-to-consumer: side-by-side
| Factor | Costco | Amerisleep (Direct) | Saatva (Direct) |
|---|---|---|---|
| Membership required | Yes ($65/yr Gold Star) | No | No |
| Trial period | Case-by-case (no fixed terms) | 100 nights (documented) | 365 nights (documented) |
| Return process | Warehouse counter, manager discretion | Pickup arranged, full refund | Pickup arranged, $99 fee |
| Warranty | Brand-dependent (10-20 yr) | 20 years (covers 0.75" sag) | Lifetime (Classic) |
| Delivery | Free curbside (members) | Free shipping, threshold delivery | Free white-glove + haul-away |
| Setup help | None | None (compressed box) | In-room setup included |
| Price range (queen) | $699 to $2,000+ | From $1,049 | From $1,395 |
Who should actually shop Costco for a mattress
Costco makes sense in a few specific situations. If you already pay the annual membership fee for other purchases, adding a $699 Novaform to your haul removes the cost-of-membership argument. Costco also makes sense for guest rooms and secondary beds, where you will not spend eight hours testing long-term comfort and where warranty depth matters less. The Kirkland Signature by Stearns & Foster is a genuinely competent hybrid for these use cases.
For your primary bed, the structured trial matters more than it seems at purchase. Most people do not know in the first week whether a mattress fits them. The thirty-night, sixty-night, and ninety-night windows are where real mismatch shows up. That is exactly where Costco's policy gets fuzzy and where direct-to-consumer brands earn their slightly higher baseline price.
Read our back pain mattress guide if spinal support is your main concern, or the hybrid vs memory foam comparison if you are trying to decide on construction type before deciding where to buy.
Costco mattress brands: what you need to know
Novaform is a Costco-exclusive foam brand, not available through other retailers. The quality is solid for the price and the 20-year warranty is above average for this tier. Kirkland Signature by Stearns & Foster is a co-manufactured hybrid using Stearns & Foster's IntelliCoil technology, sold only at Costco. It is meaningfully different from a standard S&F retail model, though the coil system is legitimate. Casper Select is a simplified version of the Casper Original foam bed, tuned to Costco pricing, with fewer layers than what Casper sells direct. Tempur-Pedic at Costco is often a Costco-exclusive SKU or an older collection, not always the same model as what Tempur sells directly.
None of these have a published CertiPUR-US certification list on the Costco product page, though Novaform and Casper foam components are typically CertiPUR-US certified. Fiberglass content is not disclosed for most Costco mattress brands, so if that is a concern for you, check our fiberglass-free guide for verified alternatives.
For a guest bed or secondary room, Costco's Novaform or Kirkland Signature hybrid offers real value at warehouse pricing. For a primary mattress, buy direct: Amerisleep AS3 on a 100-night trial for foam, Saatva Classic on a 365-night trial for a coil hybrid. Both give you structured return terms that Costco cannot match.
Frequently asked questions
What is Costco's return policy on mattresses?
Costco's published satisfaction guarantee covers mattresses, but the process for used mattresses is handled at the warehouse manager's discretion. Some members report successful returns months or years after purchase; others are told returns are not accepted on used sleep products. There is no published time limit or structured pickup process, which makes it meaningfully different from the 100- to 365-night trials offered by direct-to-consumer brands.
Is the Kirkland Signature mattress actually made by Stearns & Foster?
Yes. The Kirkland Signature by Stearns & Foster models are co-manufactured using S&F's IntelliCoil pocket coil system. They are Costco-exclusive SKUs, not identical to models sold in furniture retail stores, but they use real Stearns & Foster coil technology. Quality for the price is generally considered strong for a warehouse-channel hybrid.
Is Novaform a good brand?
Novaform is a Costco-exclusive brand with a solid track record at budget price points. The gel memory foam is functional, the 20-year warranty is above average for this tier, and motion isolation is good. The limitations are consistent with all-foam beds at this price: softer edges, moderate cooling, and a return process that depends on Costco store policy rather than a published trial.
Does Costco carry Tempur-Pedic?
Yes, Costco typically carries select Tempur-Pedic models online and occasionally in warehouse. These are often Costco-exclusive SKUs or models from an earlier collection, not always the same as what Tempur sells on its own site. Pricing at Costco can be $200 to $500 below Tempur's direct pricing, which is a meaningful saving on a $2,000-plus purchase.
Should I buy a mattress at Costco or online?
Costco wins on price for secondary beds and for buyers who already pay the membership fee. For a primary mattress, the lack of a structured trial with documented return terms is a real limitation. If you plan to test the mattress seriously over sixty to ninety nights, buying from a brand with a published trial and arranged pickup makes the experience cleaner and reduces risk.
This guide is part of our Best Mattress by Retailer hub, compare all the top picks and narrow down your choice there.
Amerisleep AS3
Our #1 direct-brand alternative for Costco shoppers is Amerisleep AS3. It is sold by Amerisleep, not presented here as a mattress stocked at Costco.
The AS3 is a 12-inch mattress with a medium feel; the all-foam version combines Bio-Pur memory foam and HIVE technology.