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You spend more than a quarter of your lifetime in bed, so it's not a bad idea to do what you can to assure that where you sleep is as healthy and comfortable as possible. Many mattresses are made with multiple chemicals such as polyurethane, synthetic fabrics, chemical fire retardants, toxic dyes, formaldehyde, and stain-resistant chemicals that can off-gas over time and may lead to allergic reactions and other health problems.

Linens are frequently made from conventional cotton and polyester, which is made from petroleum. They're often bleached white with chlorine, which spews toxic chemicals such as carcinogenic dioxins into the air that can ultimately land in our food chain. The harsh chemicals used to dye fabrics can pollute water, and some linens are treated with formaldehyde to make them permanent press. Some towels have added antimicrobials, such as the controversial triclosan. Organic mattresses are still very expensive, but there's an ever-increasing selection of affordable bedding and towels made from sustainable fabrics such as organic cotton and bamboo. The following suggestions will help you make greener choices:

Green

•  Choose cotton and wool linens over polyester, and avoid permanent press and triclosan.

Greener

•  Buy linens made from sustainable fabrics, such as organic cotton and bamboo and low-impact dyes. You can find relatively inexpensive options at Target. Under the Canopy, www​.underthecanopy​.com, is a great source for affordable sheets, towels, and clothing. Pure Grow wool blankets are pesticide free. If you're looking for high-end sheets and towels check out Ana Sova Luxury Organics, www​.annasova​.com​.

Greenest

•  Next time you're in the market for a new mattress consider going organic. Organic mattresses are definitely more expensive, but prices will come down as demand increases. Look for products made from natural latex, organic cotton, and wool. Mattresses from Lifekind, www​.lifekind​.com, are certified by Greenguard Environmental Institute. Other sources include North Star Beds, www​.northstarbed​.com; the Organic Mattress Store, www​.theorganicmattressstore​.com; Good Night Naturals, www​.goodnightnaturals​.com; and EcoChoices Eco Bedroom, www​.ecobedroom​.com​.

Reprinted from Green, Greener, Greenest by Lori Bongiorno by arrangement with Perigee, a member of Penguin Group (USA) Inc., Copyright © 2008 by Lori Bongiorno. Buy the book on Amazon