How long should you keep a cot?

Sure, here's a description simulating the tone of a questioner, based on the given paragraph: "I'm curious about something related to household items, specifically a cot. As someone who's looking to set up a comfortable living space, I've been wondering - how long should you keep a cot? Is there a certain lifespan to expect from one? Do factors like quality, usage, and maintenance play a role in determining how long a cot should last? And if it starts to show signs of wear and tear, is there a point where it's no longer SAFE or practical to use? I'd love to hear your thoughts on this, as I'm trying to make an informed decision about whether to invest in a new cot or not.