Are you having a hard time finding bedding for your xl twin bunk bed mattress? At Bed Linens Etc., we carry a complete line of twin extra long bunk bed comforters. Our bunk bed caps are made with an elastic band along the bottom edge, and guaranteed not to slip from the mattress. XL twin bunk beds are common in college dorms. We offer our comforters in several thread counts and sizes so your look is over trying to find that matching combination. If you have any questions about our bunkies please feel free to contact us.