A poll finds nearly a third of people asked say they've been late to work or school because they were tossing and turning the night before.
A bad night's sleep could also get you in trouble on the job.
About 10 percent blame a bad mattress for snapping at a boss, while 8 percent said they've secretly napped at work.
Sure, a new mattress can be expensive.
But the poll finds a third of those asked say they would buy a new mattress if they thought it would improve their sex life.
The random telephone survey of about 1,000 Americans was conducted by the market research firm Harris Interactive.
