At Boulder Furniture and Mattress, a yawn isn’t a sign of boredom but an indication of contentment as patrons hop between memory-foam mattresses nestled in sleek bed frames, and plush sofas filled with downy throw pillows. A host of Danish convertible sofas class up the evenings of overnight guests with their modern lines and innovative shapes, and child- and college-friendly bunk beds sport functional features such as desks, futons, and storage drawers. A broad selection of bedding caps off customers’ mattress choices, with bamboo sheets and organic-wool mattress toppers waiting to shrink owners’ carbon footprints down to ant size.