The anchor was seen as a symbol of strength as anchors hold down ships even in the stormiest of weather. It was also a popular symbol because of its close resemblance to the cross. Anchors were also used to mark safe houses for those seeking refuge from persecution.
While sheet sizes vary by brand and style, a fitted sheet is similar to its respective mattress in measurements; for instance, 78 inches wide and 80 inches long for a king mattress, compared to 72 inches wide, 84 inches long for a California king. The fitted sheet has a little extra width in the king-sized set.
A twin fitted sheet is 39 inches by 75 inches; a fitted sheet for a full sized bed is 54 inches by 75 inches. Queen size fitted sheets are 60 inches by 80 inches; king fitted sheets are 78 inches by 80 inches. Twin extra-long beds, which are often found in college dormitories are longer than standard twins. A twin XL fitted sheet measures 39 inches by 80 inches.