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Off gassing (or out gassing) in our research refers to an odor that a mattress may give off when it is new due to its chemical composition and packaging.
The odor is caused by the breakdown of volatile organic compounds (VOCs) which are common in household products. The science of VOCs is beyond the scope of our mattress research. Our research focuses instead on analyzing mattress owner reports of off gassing.
The chart below shows how the different mattress types compare on this issue
based on consumer experiences. Keep in mind that the information represents
what is often but not always the case; off gassing from particular brand,
model or individual mattress may vary from these findings.
Sources of off gassing from airbeds can include the latex air chambers as well as any foam that may be used in the comfort layer.
Among latex mattresses, the all-natural / all-latex type seldom has reports of off gassing (but may have an initial and unpleasant rubber smell). However, at least 10% of owners of models that contain synthetic / blended latex report considerable off gassing.
Innerspring mattresses that have a thick foam comfort layer tend to have the most off gassing potential.
Memory foam thickness and density are often main factors driving off gassing. See memory foam off gassing odor for more analysis.
Hybrid mattresses consist of memory foam over innersprings. Those models with two inches or more of memory tend to have the most off gassing complaints.
IN THE NEWS: Sleep Like The Dead's research findings have appeared in such news publications as Barron's • Toronto Star • St. Louis Post-Dispatch • Edmonton Journal • Woman's World • The Consumerist • The Gazette • Ottawa Citizen
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