Round, rectangular, or bolster pillows are usually the best options for this purpose. Use a mix of shapes and colors to create a more eclectic look or pick uniform pillows for a clean, consistent look. However you style pillows on a daybed, they are sure to add a soft, inviting appearance. By adding a footstool or ottoman in front of a daybed, you emphasize its lounging possibilities and help add to the couch-like appearance. Another advantage to ottomans is that they often come with storage space inside. This extra space can be used to store away the more bed-like accessories, like sheets or extra large blankets.
