Add a new page. edit this panel. Top-down and bottom-up theories of perception. Psychologists often distinguish between top-down and bottom-up approaches to information-processing. In top-down approaches, knowledge or expectations are used to guide processing.
Full size beds are 54â³ (137 cm) wide and 75â³ (191 cm) long, making them smaller than a standard queen size bed that measures 60â³ x 80â³ (152 cm x 203 cm). The following picture is a handy reference for â and easy visual representation of â all the different bed sizes: twin, full, queen, king and California king size.
While the sheets designed for full or double beds vary in size from brand to brand or even style to style, the mattresses they are designed to fit are all 54 inches wide, 75 inches long. A fitted sheet for a full or double bed closely matches the actual mattress size for a snug fit, while flat sheet sizes are larger. There is no standard measurement for a full or double flat sheet; in one brand, the sheet may be 81 inches wide, while another offers an 85-inch-wide flat sheet.