Amerisleep Warranty 2026: 20-Year Coverage Explained + How to Claim

What the Amerisleep warranty covers

Amerisleep's 20-year warranty addresses three categories of defect. All three must arise from defects in materials or workmanship, not from normal use or physical damage.

Defect type	Covered?	Details
Sagging greater than 1.5 inches	Yes	Measured without any weight on the mattress. Visible indentation must exceed 1.5 inches depth.
Manufacturing defects in materials	Yes	Defective foam, coil, or fabric arising from production, not from use or damage.
Cover or foam layer separation	Yes	Cover detaching or foam layers separating at seams due to workmanship failure.

Years 1–10: full coverage

During the first ten years, Amerisleep covers 100% of the replacement cost. If the mattress develops a qualifying defect (sagging over 1.5 inches, a manufacturing flaw, or cover/foam separation), Amerisleep replaces it at no charge. You pay nothing for the replacement itself, though shipping logistics at the time of claim may vary.

Years 11–20: prorated at 50%

From year 11 through year 20, the warranty shifts to prorated. You pay 50% of the current replacement cost; Amerisleep covers the other 50%. The same qualifying defects apply. The 50% split is fixed throughout years 11–20; it does not increase year over year within that window.

What is NOT covered

Claiming for any of the following will result in a denial:

Exclusion	Covered?	Why not
Body impressions under 1.5 inches	No	Considered normal wear from regular use
Damage from removing the cover	No	The cover is not designed to be removed; damage voids coverage
Use on an inadequate or broken foundation	No	Foundation requirements must be met; see the section below
Stains, burns, cuts, or physical damage	No	User-caused damage is not a manufacturing defect
Normal softening of comfort layers	No	Foam naturally conforms to the body over time; this is expected
Second-hand purchases	No	Warranty is non-transferable; original buyer only

The warranty is separate from Amerisleep's 100-night return trial. If you are within the trial period and the mattress is not right, a return or exchange is a separate process. The warranty kicks in after the trial ends and covers defects that develop over the mattress's life.

How to file an Amerisleep warranty claim

Amerisleep processes warranty claims through their customer service team. The process is documentation-driven: clear photos of the defect and your original order information are the core of any successful claim.

1. Document the defect with photos. Photograph the mattress without any weight on it. For sagging claims, lay a straight edge (yardstick or level) across the surface and photograph the gap beneath it to show depth. Measure the sag depth and photograph that measurement too. For defect or separation claims, photograph the affected area clearly in natural light from multiple angles.
2. Contact Amerisleep customer service. Reach out via phone or the contact form on amerisleep.com. State that you are filing a warranty claim and identify the defect type. Have your order number, purchase date, and delivery confirmation ready before you call or submit.
3. Submit order info, photos, and a written description. Amerisleep's team will request your purchase documentation and the photos you collected. Write a brief description of when the defect appeared and how it has progressed. The more specific the documentation, the faster the review.
4. Wait for Amerisleep's review decision. The review team evaluates your photos and order history against the warranty terms. Follow up by phone if you have not received a decision within 5–7 business days of submission.
5. Receive your resolution. If approved in years 1–10, Amerisleep ships a replacement mattress at no cost. In years 11–20, they offer a replacement at 50% of the current retail price. You pay that 50% before the replacement ships.
6. Return the defective mattress if required. Amerisleep may require the original mattress to be returned before or with the replacement. Confirm return logistics with the customer service team before discarding or moving the original mattress.

Foundation requirements

Using an inadequate foundation voids the warranty. Amerisleep specifies the foundation types that maintain coverage:

Foundation type	Warranty valid?	Notes
Slatted foundation (slats 3 inches apart or less)	Yes	Slats must be no more than 3 inches apart across the full width
Solid platform base	Yes	Continuous solid surface with no gaps
Box spring in good condition	Yes	No broken or bowing sections
Slatted foundation (gaps wider than 3 inches)	No	Insufficient support; voids warranty
Broken, bent, or bowing frame	No	Cannot provide adequate support; voids warranty
Adjustable base (Amerisleep brand)	Yes	Designed for compatibility; verify with customer service for third-party adjustable bases

The 3-inch maximum slat gap is stricter than many standard bed frames provide. Measure the gap between slats before placing your Amerisleep mattress on a new or existing frame. If gaps exceed 3 inches, add slats or use a bunkie board. This is the most common reason warranty claims are denied on otherwise legitimate defects.

Amerisleep warranty vs competitors

A 20-year warranty is above average for the mattress industry. Here is how Amerisleep stacks up against the brands most commonly compared to it:

Mattress	Type	Firmness	Trial	Warranty	Queen price
Amerisleep AS3	All-foam Bio-Pur	Medium 5/10	100 nights	20 years (10 full + 10 prorated)	From $1,049
Nectar Original	All-foam memory foam	Medium-firm 6/10	365 nights	Lifetime	~$699
Saatva Classic	Innerspring hybrid	3 options: ~4/6/8	365 nights	Lifetime (no proration)	~$1,395
Helix Midnight	Hybrid	Medium 6/10	100 nights	10 years	~$1,374
Casper Original	All-foam	Medium-firm 6/10	100 nights	10 years	~$799
Tempur-Pedic Cloud	All-foam TEMPUR	Medium 5/10	90 nights	10 years	~$1,700

Saatva and Nectar offer lifetime warranties with no prorated period, the strongest terms in the category. Amerisleep's 20-year coverage with a 10-year full replacement period is meaningfully stronger than Casper, Tempur-Pedic, and standard Helix models, all of which cap at 10 years. The 50% prorated share in years 11–20 is a real cost if a defect surfaces late, but a 20-year floor is above average for the industry.

Frequently asked questions

How long is the Amerisleep warranty?

Amerisleep warranties all mattresses for 20 years from the purchase date. Years 1–10 are fully covered: a qualifying defect gets a free replacement at no cost. Years 11–20 are prorated at 50%: you pay half the current replacement cost, Amerisleep covers the other half.

What does "prorated" mean in the Amerisleep warranty?

Prorated means you share the replacement cost during years 11–20. Amerisleep covers 50% of the current retail price of the replacement mattress; you pay the remaining 50%. The prorated split is fixed at 50/50 throughout the entire second decade; it does not get progressively more expensive each year within that window.

Does the Amerisleep warranty cover normal body impressions?

No. Normal body impressions (the slight softening and conforming of foam to your body shape over time) are not covered. The warranty only activates when visible sagging exceeds 1.5 inches measured on an unloaded mattress surface. Impressions under that threshold, even if visible, are considered normal wear.

Can I transfer the Amerisleep warranty if I sell the mattress?

No. The Amerisleep warranty is non-transferable. It applies only to the original buyer listed on the purchase order. If you sell or give the mattress to someone else, the warranty does not transfer to the new owner.

What photos do I need to file a warranty claim?

For sagging claims: photograph the mattress unloaded with a straight edge across the surface showing the gap, plus a close-up measurement of the sag depth. For manufacturing defect or separation claims: clear photos of the affected area from multiple angles in natural light. Include your order confirmation in the documentation package.

Does the warranty cover the mattress cover?

Yes, if the cover separates from the foam layers due to a workmanship defect. However, damage caused by removing the cover yourself is explicitly excluded. Do not attempt to unzip or remove the Amerisleep mattress cover; if there is a cover issue, contact Amerisleep customer service before touching it.

What foundation do I need to keep the warranty valid?

A slatted foundation with slats no more than 3 inches apart, a solid platform base, or a box spring in good condition. Broken frames, sagging foundations, and slatted frames with gaps wider than 3 inches void the warranty. Check your slat spacing before setup; gaps over 3 inches are the most common avoidable warranty-voiding mistake.

How does the Amerisleep warranty differ from the 100-night trial?

They are completely separate programs. The 100-night trial is a satisfaction guarantee: if the mattress is not right for you within 100 nights, you return it for a full refund. The warranty covers manufacturing defects and sagging that develop over the 20-year life of the mattress. You cannot use the warranty to return a mattress you simply do not prefer; that is what the trial is for.

Is the Amerisleep warranty valid if I bought through a retailer?

Warranty fulfillment for mattresses purchased through authorized third-party retailers may differ from direct amerisleep.com purchases. Contact Amerisleep customer service with your retailer receipt to verify warranty eligibility and the claim process for your purchase channel.

How does Amerisleep's 20-year warranty compare to Saatva's lifetime warranty?

Saatva's lifetime warranty covers the mattress for as long as the original buyer owns it with no prorated period. Amerisleep's warranty is non-prorated for years 1–10, then 50% prorated for years 11–20. Saatva's terms are stronger for buyers who keep a mattress past year 10. Both brands are significantly ahead of the 10-year standard at Casper, Helix, and Tempur-Pedic.