Mattress Return Policies Compared (2026): Costco, Amazon, IKEA, Walmart & More

Quick answer: mattress return policies vary far more than the headline number suggests. Some retailers offer a broad satisfaction guarantee, some give a true mattress sleep trial, and others allow only an exchange. The details below reflect current U.S. policies checked in September 2026, but always confirm the specific product page and your receipt before buying because marketplace sellers, clearance items, adjustable bases, crib mattresses, air mattresses, open-box products and other categories can follow different rules.

Mattress return policies compared

Before you return a mattress: understand the break-in period, then see what to do if the mattress feels too firm or too soft, and whether a mattress topper can help.

Bottom line: the longest-looking policy is not always the easiest policy. Costco’s model is a satisfaction guarantee rather than a fixed mattress sleep trial. IKEA’s mattress-specific benefit is a one-time exchange. Amazon, Mattress Firm and Wayfair publish defined windows, but eligibility and logistics can still change the real cost of returning a large mattress.

Costco mattress return policy

Costco’s official merchandise policy says it guarantees member satisfaction on the products it sells and will refund the purchase price, subject to listed exceptions and limitations. Mattresses are not named among Costco’s standard 90-day electronics exceptions.

Costco also says items purchased in a warehouse can generally be returned to a Costco warehouse. Costco.com orders can generally be returned at a warehouse or initiated online. For large delivered items, pickup and freight-return logistics can differ from carrying a smaller item back to the membership desk.

That makes Costco unusual: instead of publishing a simple “100-night mattress trial,” it places mattresses under its broader satisfaction-guarantee framework.

Read our full Costco mattress return policy guide →

Amazon mattress return policy

Amazon’s current U.S. return policy explicitly lists mattresses, excluding crib mattresses, with a 90-day return window. That is much more specific than Amazon’s normal 30-day window for most items.

The important complication is size. Amazon classifies items weighing 50 pounds or more, or exceeding certain package dimensions, as heavy or bulky. Those returns may require a scheduled home collection and can carry variable return-shipping charges. Amazon also notes that third-party sellers can have additional terms.

For a mattress bought on Amazon, the safest source of truth is the return eligibility shown on the product detail page and later in your Order History.

Read our full Amazon mattress return policy guide →

IKEA mattress return policy

IKEA is a good example of why the phrase “return window” can be misleading. IKEA’s normal U.S. policy allows new and unopened products to be returned within 365 days and opened products within 180 days with proof of purchase. But mattresses have a separate rule:

A mattress purchase may be exchanged for another mattress one time within 90 days.

That is an exchange policy, not simply the same cash-refund policy that applies to ordinary IKEA merchandise. IKEA can also reject merchandise that is dirty, stained, damaged or modified.

Read our full IKEA mattress return policy guide →

Walmart mattress return policy

Walmart’s standard return policy gives most Walmart-sold items 90 days after purchase or receipt unless a stated exception applies. Walmart.com’s Purchase History displays the current eligible return date for an order, which is worth checking before assuming that every mattress follows the same rule.

Walmart also distinguishes its own merchandise from Marketplace orders. Marketplace seller items are commonly returnable within 30 days rather than Walmart’s standard 90-day period.

For online orders, Walmart may offer several return methods, including a store return, mail return, FedEx drop-off or scheduled pickup depending on the item. If a mattress is oversized and the available return method is unclear, Walmart directs customers to Customer Care.

Read our full Walmart mattress return guide →

Mattress Firm return policy

Mattress Firm currently promotes a 120 Night Sleep Trial on eligible mattresses, describing it as an opportunity to sleep on the mattress and get help finding a different mattress or receive money back if it is not a fit.

Do not reduce that to “everything is freely returnable for 120 days.” Sleep trials usually have eligibility rules, product exclusions and transaction-specific terms. Mattress Firm’s own warranty material notes that products delivered within 120 days may qualify for action under the sleep-trial program.

Because Mattress Firm changes promotions and sells products with different manufacturer programs, keep your purchase paperwork and verify the current Returns & Exchanges terms attached to the mattress you buy.

Read our full Mattress Firm return policy guide →

Sam’s Club mattress return policy

Sam’s Club’s current 100% Satisfaction Guarantee is unusually broad: its official returns page says most items can be returned at any time unless they fall into a listed exception. Mattresses are not listed among the categories with 90-day, 30-day, 14-day or no-return windows.

For online purchases, Sam’s Club says a return may be brought to a club, shipped back when that option is available, or handled through Member Services. Online refunds are generally credited back to the original form of payment after the return is processed.

There are still catches. Sam’s Club says individual products can carry their own return restrictions, only active memberships qualify for the Satisfaction Guarantee, and original shipping or delivery charges are generally refunded only when Sam’s Club made an error or the item was damaged in shipping.

Read our full Sam’s Club mattress return policy guide →

Wayfair mattress return policy

Wayfair currently advertises a 100-Night Free Trial for mattresses. If the mattress does not work for you within the first 100 nights, Wayfair directs customers to contact its mattress team to arrange a return.

There are important exclusions. Wayfair says the mattress trial does not apply to mattress toppers, crib mattresses, air mattresses or open-box mattresses, and it allows one mattress return or exchange per order.

Read our full Wayfair mattress return policy guide →

What actually makes a mattress return policy good?

A generous headline number is only one factor. When comparing retailers, look at these six details:

• Refund vs. exchange: IKEA’s mattress program, for example, is specifically an exchange program.
• Mandatory break-in period: some sleep trials require you to keep the mattress for a minimum period before a comfort return.
• Pickup cost: a “free trial” feels very different if a large-item return carries freight or pickup charges.
• Restocking or processing fees: these can reduce the refund even when a mattress qualifies for return.
• Condition requirements: stains, damage, missing law tags or unsanitary condition can void eligibility.
• Product exclusions: adjustable bases, foundations, toppers, clearance items and open-box merchandise frequently have different rules.

Do you have to put a mattress back in the box?

Usually not, but the return process depends on the retailer. Once a compressed mattress expands, getting it back into its original shipping box is generally unrealistic. Large-item retailers may arrange pickup, require you to bring the mattress to a location, or give special freight instructions.

Do not fold, compress or damage the mattress simply to make a return easier unless the retailer specifically instructs you to do so.

Can a used mattress be returned?

Sometimes. A mattress sleep trial is specifically designed to let you sleep on the mattress, so normal use is expected. A standard retail return policy can be different. Even when a used mattress is eligible, visible stains, contamination, damage, removed labels or unsanitary condition can create problems.

A waterproof mattress protector during the trial period is cheap insurance—not because every retailer requires one, but because it helps preserve the mattress in returnable condition.

What to save until you know the mattress is staying

• purchase receipt or order confirmation
• law tag and product labels
• trial-period and return-policy screenshots or emails
• delivery paperwork
• photos of any damage found at delivery
• manufacturer and retailer warranty documents

You normally do not need to store an enormous mattress shipping carton for months unless the seller explicitly tells you to, but keep smaller accessories and documentation until you know the bed is staying.

Retailer return-policy guides on Yawnder

• Costco mattress return policy
• Amazon mattress return policy
• IKEA mattress return policy
• Walmart mattress return policy
• Mattress Firm return policy
• Sam’s Club mattress return policy
• Wayfair mattress return policy
• Ashley mattress return policy
• Macy’s mattress return policy
• Rooms To Go mattress return policy
• Living Spaces mattress return policy
• Target mattress return policy
• Saatva return policy
• Purple mattress return policy
• Tempur-Pedic return policy
• Sleep Number return policy
• Helix return policy
• Avocado mattress return policy
• Nectar mattress return policy
• DreamCloud mattress return policy
• WinkBeds return policy
• Brooklyn Bedding return policy
• Beautyrest return policy
• BJ's mattress return policy
• Bear mattress return policy
• Nolah return policy
• Puffy return policy
• Leesa return policy
• Birch mattress return policy
• Naturepedic return policy

Official policy sources checked for this guide

• Costco Customer Service — warehouse returns
• Amazon — return policy
• IKEA U.S. — returns and claims
• Walmart — standard return policy
• Mattress Firm — warranty and sleep-trial information
• Sam’s Club — current returns and Satisfaction Guarantee
• Wayfair — current mattress trial example

Policy check: September 27, 2026. Retailer terms change. This page is a comparison guide, not a substitute for the policy shown on your specific product/order at the time of purchase.