How do you get that spark back?

“Lately I haven’t been feeling attracted to my husband.
We’ve been married for five years, but I just haven’t felt any spark for a couple years now. I don’t know what’s wrong because there hasn’t been anything that he’s done that would cause me to lose interest. He’s a great guy that’s always treated me well.
Has anyone else been through something like this and is there a way to get that spark back?”
What do you think?