On the other hand, spider beetles have 6 legs that are obvious when they’re crawling. The pair of antennae is usually seen. Eggs: Mattress bug eggs are small, around 1 millimeter in size. They can be white or pale and also have an elongated shape. You might not see them, https://daltonpuxbe.blogpixi.com/31311071/step-by-step-beds-an-overview