by Amerisleep Warranty 2026: 20-Year Coverage Explained + How to Claim
Amerisleep backs every mattress with a 20-year warranty — full replacement for years 1–10, prorated after that. Here is exactly what the warranty covers, what voids it, and how to file a claim step by step.
TL;DR: Amerisleep Warranty at a Glance
Amerisleep offers a 20-year warranty on all mattresses. Years 1–10 are fully covered: Amerisleep replaces a defective mattress at no cost. Years 11–20 are prorated: you pay 50% of the replacement cost. The warranty covers sagging greater than 1.5 inches (measured without weight on the mattress), manufacturing defects, and separation of cover materials or foam layers. It does not cover body impressions under 1.5 inches, damage from removing the cover, or use on an inadequate foundation. The warranty is non-transferable and applies to the original buyer only.
What this warranty guide covers
What the Amerisleep Warranty Covers
Amerisleep's 20-year warranty addresses three categories of defect: physical sagging, manufacturing defects, and material separation. 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 surface. Visible indentation must exceed 1.5" depth. |
| Manufacturing defects in materials | Yes | Defective foam, coil, or fabric arising from production — not from use or damage. |
| Cover/fabric separation from foam layers | Yes | Cover detaching or foam layers separating at seams, arising from 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 in the materials, or cover/foam separation — Amerisleep replaces the mattress at no charge. You pay nothing for the replacement itself, though shipping terms may apply depending on your location and Amerisleep's logistics at the time of claim.
Years 11–20: Prorated Coverage
From year 11 through year 20, the warranty shifts to prorated. You pay 50% of the current replacement cost of the mattress. Amerisleep covers the other 50%. The prorated period still requires a qualifying defect — the same sagging, manufacturing defect, and separation criteria apply. The 50% contribution remains flat throughout years 11–20; it does not increase year over year within that window.
For context on how the mattress holds up across years of use, see the Amerisleep mattress reviews, which include long-term durability data from verified owners.
What Is NOT Covered
The warranty is specific about exclusions. 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, not a manufacturing defect |
| Physical damage from removing the cover | No | The cover is not designed to be removed by the user; damage from removal voids coverage |
| Use on an inadequate or broken foundation | No | Foundation requirements must be met; see the foundation section below |
| Stains, burns, cuts, or physical abuse | No | User-caused damage is not a manufacturing defect |
| Normal softening of comfort layers | No | Foam naturally conforms to body over time; this is expected behavior, not a defect |
| Second-hand purchases | No | Warranty is non-transferable; applies to original buyer only |
The warranty is separate from Amerisleep's 100-night return trial. If you are within your trial period and the mattress is not right, a return or exchange is a separate process. See the Amerisleep return policy guide for full trial details. The warranty kicks in after the trial period ends and covers defects that develop over the life of the mattress.
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.
- Document the defect with photos. Photograph the mattress without any weight on it. For sagging claims, use a straight edge (a yardstick or level) laid across the surface and photograph the gap beneath it to show depth. Measure the sag depth and photograph the measurement. For manufacturing defect or separation claims, photograph the affected area clearly in natural light. Multiple angles help.
- Contact Amerisleep customer service. Reach out via phone or the contact form on amerisleep.com. State clearly 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.
- Provide order information, photos, and a written description. Amerisleep's team will request your purchase documentation and the photos you collected. Submit these together. Write a brief description of when the defect appeared and how it has progressed. The more specific the documentation, the faster the review.
- Amerisleep customer service reviews the claim. The review team evaluates your photos and order history against the warranty terms. Review timelines can vary; follow up by phone if you have not received a decision within 5–7 business days of submission.
- Claim approved — receive your resolution. If the claim is approved: years 1–10, Amerisleep ships a replacement mattress at no cost. Years 11–20, Amerisleep offers a replacement at 50% of the current retail price. You pay that 50% before the replacement ships.
- Return the defective mattress if required. Amerisleep may require the original defective mattress to be returned before or concurrent with the replacement. Whether they arrange pickup or require you to handle logistics is at Amerisleep's discretion at the time of claim. Confirm the return logistics with the customer service team before discarding or moving the original mattress.
Considering the AS3? It carries the same 20-year warranty across all sizes.
Foundation Requirements
Using an inadequate foundation voids the warranty. Amerisleep specifies the foundation types that maintain warranty coverage:
| Foundation type | Warranty valid? | Notes |
|---|---|---|
| Slatted foundation with slats 3 inches apart or less | Yes | Slats must be no more than 3 inches apart across the full width of the frame |
| Solid platform base | Yes | Continuous solid surface with no gaps |
| Box spring (solid or enclosed coil) | Yes | Must be in good condition with no broken or bowing sections |
| Slatted foundation with gaps wider than 3 inches | No | Insufficient support; voids warranty |
| Broken, bent, or bowing frame | No | Damaged frames cannot provide adequate support; voids warranty |
| Adjustable base (flat position only) | Conditional | Amerisleep adjustable bases are designed for compatibility; verify with customer service for third-party adjustable bases |
If you are shopping for a compatible base, the AS3 review includes foundation compatibility details for the most popular Amerisleep model.
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:
| Brand | Warranty length | Non-prorated period | Sagging threshold | Transferable? |
|---|---|---|---|---|
| Amerisleep | 20 years | Years 1–10 (full) | >1.5 inches | No |
| Saatva (Classic, HD, Solaire) | Lifetime | Full lifetime | >1.5 inches | No |
| Tempur-Pedic | 10 years | Years 1–10 (full) | Varies by model | No |
| Casper | 10 years | Years 1–10 (full) | >1.5 inches | No |
| Nectar | Lifetime (Forever) | Full lifetime | >1.5 inches | No |
| Helix | 10–15 years | Full (no proration) | >1.5 inches | No |
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 out at 10 years. The prorated 50% in years 11–20 is a real cost if a defect surfaces late, but a 20-year floor is above average.
For the Saatva warranty in detail, including the lifetime coverage terms and claim process, see the Saatva warranty guide.
Prefer lifetime warranty coverage? Saatva is the primary alternative with no prorated period.
Frequently Asked Questions
How long is the Amerisleep warranty?
Amerisleep warranties all mattresses for 20 years from the date of purchase. The first 10 years are fully covered: Amerisleep replaces a defective mattress at no cost to you. Years 11 through 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. The second-hand buyer has no warranty coverage.
What photos do I need to file a warranty claim?
For sagging claims: photograph the mattress unloaded with a straight edge (yardstick or level) across the surface showing the gap, plus a measurement of the sag depth. For manufacturing defect or separation claims: clear photographs 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, that is covered. 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?
You need 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 warranty-voiding mistake.
How does the Amerisleep warranty differ from the 100-night trial?
They are separate programs. The 100-night trial is a satisfaction guarantee: if you do not like the mattress within 100 nights, you can 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. See the return policy guide for trial details.
Is the Amerisleep warranty good 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 specific claim process for your purchase channel. Do not assume the standard direct-purchase warranty process applies automatically to third-party buys.
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 — full replacement at any point for qualifying defects. Amerisleep's 20-year warranty is fully non-prorated for 10 years, then 50% prorated for years 11–20. Saatva's terms are stronger on paper; the practical gap matters most to buyers who keep a mattress past year 10. See the full Saatva warranty breakdown for claim process details.
Verdict
The Amerisleep 20-year warranty is solid — stronger than most, but not the category leader.
A 20-year warranty with 10 fully non-prorated years puts Amerisleep well above Tempur-Pedic, Casper, and standard Helix coverage, all of which cap at 10 years with no prorated extension. If a defect surfaces in years 1–10, you get a free replacement. That is a meaningful protection on a mattress that runs several hundred to over a thousand dollars.
The 50% prorated share in years 11–20 is the only real limitation. It is not unusual in the industry — most brands that extend past 10 years use some form of proration — but Saatva and Nectar do not prorate at all. If long-term coverage with zero out-of-pocket cost matters to you past the decade mark, Saatva's lifetime warranty is the stronger position. The Amerisleep vs Saatva comparison covers both the product and policy differences head-to-head.
Two practical notes for Amerisleep buyers: keep your original order confirmation (you will need it for any claim), and check your slat spacing before setup. The 3-inch slat maximum is the most common avoidable reason warranty claims get denied. Getting your foundation right at setup costs nothing and protects a 20-year guarantee.
For current pricing, use the Amerisleep coupon page before ordering. For the full product review, see Amerisleep mattress reviews.
Amerisleep — 20-Year Warranty, 100-Night Trial
Full replacement for years 1–10. 50% prorated for years 11–20. Order directly from amerisleep.com to activate warranty coverage from day one.