Buy online throw pillow covers from best pillow covers seller Sleepsia in USA. Provides in different sizes Throw Pillow Covers 20x20, 18x18, 22x22, 12x20. Use Sleepsia throw pillow covers to decorate your bedroom, your drawing room, and even your car. Anytime you need to add a bit of brightness to your room, you can simply use our throw pillow covers on your decorative pillows.