Think twice about keeping decorative pillows on your bed. If you're in the habit of tossing them onto the floor each night before drifting off, you may actually be making your bed unhealthier and dirtier. Pillows that rest on the floor can collect dirt, bacteria, dust mites and other creepy crawlies. When you make the bed in the morning, you're bringing those unwanted microorganisms right onto your bed. Instead, just keep the pillows you actually sleep with on the bed or place the decorative pillows on a chair or side table instead.