In recent news, the mainstream papers are reporting what all ecomoms already know: Mattress Eco-Matters: Don't Take It Lying Down from the Washington Post and what to do about it in Rest Easy on a Safe Bed.

The Washington Post reports:

Most mattresses, as well as memory foam and egg-crate covers, are made with petroleum-based ingredients such as polyurethane foam, which can emit a strong smell because of organic solvents. And most also contain flame retardants, required by fire-safety laws but often harmful to human health. In 2005, toxic fireproofing chemicals called polybrominated diphenyl ethers (PBDEs) were phased out of production, but some of their replacements are almost as bad, says Sonya Lunder, a senior analyst at the Environmental Working Group, a D.C.-based nonprofit organization.

Just how hazardous can a mattress -- or pad or pillow -- be? The answer might be enough to make you lose sleep. Regular tossing and turning causes a mattress's foam to break down, and the resulting dust can float into the air you breathe. A 2006 Consumer Product Safety Commission study estimated that the average adult sleeping on a conventional mattress will be exposed to 0.802 milligrams of antimony and 0.081 milligrams of boric acid -- which is commonly used to kill cockroaches -- every night. The report deems these amounts safe for those older than 5, but numerous studies have linked both substances to a host of adverse health effects at various doses, and the cumulative effect of daily exposure is unknown. In addition, a number of recent studies have detected PBDEs in household dust, including in homes in the D.C. area.

Over time, some of the chemicals from the mattress will have dissipated. But biological contaminants, such as dust, dander, pollen, mold and mildew, may increase. They cling to mattress stuffing and ticking, and are difficult to remove.

If you're concerned about toxins but not ready to replace your old mattress, you can take steps to improve indoor air quality:

· "It's difficult to gauge how much of the chemicals seep out, but it also depends on how you're protecting it," says Seo, who recommends a barrier cloth cover (made from tightly woven cotton and typically used for allergy protection) to keep some compounds from escaping.

· If a mattress or pillow is noticeably odoriferous, letting it air out in a shed for a few days will at least help keep the chemicals out of the bedroom, although they'll still be in the environment. "Avoiding things that stink" -- that new-foam smell -- "is a great rule of thumb for environmental health," Lunder says.

· Finally, stocking up on such houseplants as spider plants and ferns, which absorb airborne pollutants, can help you rest easier.