February 10, 2026 — A consumer reported a persistent strong chemical odor from a Casper One mattress, leading to symptoms including headaches, nausea, and a funny taste in the mouth. The consumer expressed concerns about the mattress’s safety for their health.
Product Details
Product: Casper Casper One -880-000073
Incident Overview
The incident report details a consumer’s experience after receiving a Casper One mattress in mid-December 2025. Upon unpacking, a strong chemical smell was immediately noticeable, permeating the entire bedroom. The consumer initially researched the phenomenon, learning about “off-gassing” and understanding it as a common, albeit temporary, characteristic of new mattresses, typically lasting from a few days to a few weeks.
However, after one month, the chemical odor from the Casper One mattress remained very strong. Despite continuous efforts to ventilate the room by keeping the window open and using an air purifier, the smell persisted. Concurrently, the consumer began experiencing adverse health effects, including recurring headaches, nausea, and a peculiar taste in their mouth. Believing these symptoms to be directly linked to the prolonged chemical odor, the consumer expressed concern about the safety of the mattress and initiated the process of returning and removing the product from their home.
Safety Concerns
The reported incident with the Casper One mattress details the consumer’s experience of a persistent strong chemical smell and associated health symptoms.
- Immediate dangers: The consumer reported experiencing headaches, nausea, and a funny taste in the mouth after exposure to the persistent strong chemical smell from the mattress.
- Long-term risks: The consumer explicitly stated, “Smell never went away and with my symptoms I do not believe this is safe for my health,” indicating concerns about the prolonged nature of the smell and its impact on health.
- Who might be affected: The incident report focuses on the experience of the consumer.
- Property damage potential: The incident report does not mention property damage.
What Consumers Should Do
Consumers who own a Casper One mattress or any new mattress exhibiting similar characteristics should take the following steps:
- Immediate Steps to Take: If you or anyone in your household is experiencing unusual symptoms such as headaches, nausea, or a funny taste in your mouth after purchasing a new mattress, immediately remove the mattress from your sleeping area or home if possible. Ensure thorough ventilation of the affected space. If symptoms persist or worsen, seek medical attention promptly.
- How to Check if They Own the Affected Product: Verify if your mattress is a Casper One, specifically model -880-000073. Check purchase dates, especially those around mid-December 2025.
- Prevention Measures: Before purchasing a new mattress, research consumer reviews regarding off-gassing. Look for mattresses certified by programs like CertiPUR-US, which verify that foam products meet rigorous standards for emissions, content, performance, and durability. Upon receiving a new mattress, if an odor is present, air it out in a well-ventilated area (e.g., a garage or spare room with open windows) for several days to a few weeks before bringing it into your main living space.
- Reporting Procedures: If you experience a persistent strong chemical smell or adverse health effects from a new mattress, report the incident to the U.S. Consumer Product Safety Commission (CPSC) at SaferProducts.gov. Also, contact Casper Sleep, Inc. directly to report your experience and inquire about their return or replacement policies.
Manufacturer’s Response
No manufacturer response has been provided in the incident report.
Legal Help Available
If you or a loved one has been injured by a defective product or suffered property damage due to a product malfunction, you may be entitled to compensation. The experienced product liability attorneys at Farzan Law understand the complexities of defective product cases and can help you navigate the legal process. Farzan Law is a California based Personal Injury law firm focusing on protecting the rights of those wrongfully injured.
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Note: This information is based on incident reports provided by the U.S. Consumer Product Safety Commission. If you find information that is incorrect, please contact us immediately so we can correct the post to reflect accurate information.
Disclaimer: The information provided in this post is not intended to be legal or medical advice. This article is based on publicly available incident reports. The incidents mentioned have not necessarily been independently verified or adjudicated.