Purple mattress sales are famously hard to predict, so if you want to save up to $400 on the affordable PurpleFlex Mattress at Purple, shop this deal fast. A queen is only $999, reduced from $ ...

One reader wonders: Since purple dye was scarce, why didn’t people just combine blue and red? Illustration by Aurélia Fronty Q: I’ve heard that purple was called the royal color because ...