Queen size is not recommended because it will have a problem with weight distribution. In theory, you will need double the weight for a couple to share one blanket. However, making a 20kg blanket will have safety issues hence we don’t make queen size.
Our single weighted blanket is TGA approved. We purposely make our blanket single size instead of random blanket size so it’s easier for you to buy cover for it from anywhere. (although we want you to buy sheets from us too)
p.s. it is ok to use the blanket without sheets since it is machine washable. Using a cover will allow the blanket to last longer and easier to maintain.