You could even go a step further and think about getting a secondhand bed yourself, especially if you don't think you'll keep a new one for the full 10 to 20 years it might otherwise last. Obviously you should be cautious when buying used furniture—particularly when it comes to funky critters like bedbugs—but what could make for a sweeter rest than knowing you're sleeping in a 100 percent recycled bed?
Is there an environmental quandary that's been keeping you up at night? Send it to firstname.lastname@example.org, and check this space every Tuesday.
Correction, May 6, 2009: The original sentence stated that 40 million mattresses end up in the trash every year. Roughly 40 million mattresses and boxsprings are sold every year, but only an estimated 50 percent to 70 percent of these units—i.e., 20 million to 30 million—replace old ones. (Return to the corrected sentence.)