Quick answer: a strong mattress warranty claim documents four things before you contact the company: proof of purchase, the mattress law tag, the defect itself, and the support system under the mattress. For sagging claims, measure the unloaded indentation rather than how far the mattress sinks while you are lying on it.
Mattress warranty claim checklist
- Find your receipt or order confirmation.
- Find the law tag and photograph it clearly.
- Photograph the entire mattress from several angles.
- Photograph the defect close up.
- Photograph the foundation, frame, center support and slat spacing.
- Measure any visible indentation with no weight on the bed.
- Read the warranty for your exact model and purchase date.
- Submit the claim through the manufacturer or retailer specified in the warranty.
Why foundation photos matter
Improper support is one of the most common warranty exclusions. Many brands specify maximum slat spacing and center support for queen, king and California king mattresses. Do not replace the foundation before photographing the setup you actually used. If a claim is declined, see what to check after a mattress warranty denial.
How to photograph mattress sagging
Remove bedding and let the mattress sit unloaded. Place a straight edge across the indentation and measure vertically from the bottom of the straight edge to the deepest point of the impression. Photograph both the straight edge and measuring tool in the same frame.
Do not confuse comfort with a defect
A mattress becoming softer is not automatically a warranty defect. If you are still within the sleep trial and simply dislike the feel, use the return process instead. See our mattress return policy comparison.
What to include in your first message
Give the seller or warranty administrator your order number, purchase date, exact model and size. Describe the problem and when you first noticed it, attach clear photos, and identify the foundation and frame you have used. For an indentation, include the unloaded measurement and explain how you measured it. Ask for the claim number and the next step.
If the mattress was purchased through Yawnder or another retailer, start with the seller and confirm who administers that order’s claim. The process and available remedy depend on the applicable warranty and purchase channel.
Take useful photos of a sagging mattress
- Entire uncovered mattress: Show the position of the impression and the overall condition of the surface.
- Measurement: Lay a straightedge or taut string across the affected area and place a ruler vertically at the deepest point without pressing into the mattress. Photograph the reference line and ruler markings together.
- Foundation: Show the whole base, center supports and legs, plus a ruler across representative slat gaps. Do not change the setup before documenting it unless necessary for safety.
- Identification: Photograph the law tag and any serial or manufacturing information requested. Keep the tag attached; avoid publishing the images publicly.
Follow the brand’s specific instructions if they differ. For example, Avocado’s warranty specifies tailor’s tape, while its claim instructions discuss a ruler or tape and specify the measurement surface. Ask Avocado which method applies to your model and claim. Do not assume every manufacturer uses the same method. Our measurement guide offers more detail.
If the claim is denied or the measurement is borderline
Ask for the decision and the relevant warranty wording in writing. If the reason is missing documentation, the base or an indentation below the threshold, ask what additional evidence the administrator will accept. Keep dated copies of the claim, photos and replies. If a replacement is offered, confirm any delivery, removal or other charges and whether the original warranty continues. A measured dip does not guarantee a particular outcome.
Frequently asked questions
Can I file a claim if the mattress feels too soft but looks flat?
You can ask the warranty administrator to evaluate the issue, but ordinary softening or a change in comfort preference may be excluded. Review your warranty; if the mattress is still in its sleep trial, check the return deadline separately.
Should I throw away the mattress after submitting photos?
Keep it until the administrator gives written instructions. An inspection, collection, donation or other documentation may be required before a remedy is completed.
Does a warranty replacement start a new comfort trial?
Not necessarily. Ask the seller or manufacturer about the replacement’s warranty and trial terms before accepting.
Before accepting a replacement
Ask whether the remedy is a repair, replacement of one component, or a full mattress replacement. Request an itemized explanation of any prorated charge, shipping, pickup or upgrade cost. Confirm whether the replacement is the same model, whether the original warranty period continues and whether it includes a new comfort trial. Keep the answer with your order records.
Brand warranty guides
Start with our mattress warranty guide, which links to current brand-specific coverage and sag thresholds.
Before you submit
Document first, then file. A claim with clear measurements, law-tag photos, proof of purchase and foundation photos is easier for a warranty department to evaluate than a general complaint that the mattress “feels saggy.”