I needed new sheets for my massage table and I thought there wouldn't be a problem with the "futon fit" because typically a twin sheet leaves plenty of excess in all direction.  The depth of sheets is incredibly shallow; the short ends bow and don't completely fold over the entire head and foot of the table. So this will absolutely not fit on a standard twin mattress. That being said, the sheets are super soft and my clients compliment the color (pink). It's a perfect, gentle rose petal pink.