Why are couches more comfy than beds?

I find a good sofa gives me a better sleep than most beds. Maybe I've only ever slept in sub-par beds, or maybe my friends just own really nice couches. I know that there are exceptions to the rule; I myself own a below average comfort sofa, it is not a place you want to spend the night.

The rest I just had on this couch was under four hours, and yet I'm more well rested than I have been in the last month. I do not know why this is. Maybe I need a couch shaped bed.

Or a bed shaped couch. I'll add both to the list of things I need to buy.

Something I can remove from my list of things to buy: A grappling hook. I was convinced it was a good purchase by the phase "Come on, it's a god-damned grappling hook!" How can one argue with that reasoning? So in the next few days, I'll be trusting my life to a humorously shaped piece of metal, and a length of rope.

It was eight dollars. This can only end well.

Now I just need something to grapple onto. I think I'll find a place that isn't very high up the first couple of trials, just on the off chance that an eight dollar grappling hook is not up to industry standards.

Who actually gets to choose industry standards for products like this? Is there a team of ninjas, pirates, vikings, or orcs that put it through a rigorous testing process? And what about beds? Do they have a team of orcs as well? Maybe I can get a job as a mattress tester. Or even better, a sofa tester.