Hotels use percale sheets (cotton polyester blend) and so do we - they last, and they're comfortable.

I did some reading online, and came up with the below parameters on which the choice of carpet can be based:Carpet material: Nylon/Polyester(PET)/Triexta, etcCarpet cut: Cut-pile/Plush/Berber/Loop, etcCarpet Face weight: 14oz/17oz/25oz, etcCarpet pad: 8lbs, etc..I spoke to a few carpet stores in town, but each one of them told me a different choice.

You might be able to resurrect it if it's nylon, but if it's polyester, it won't improve much.

And that first coat of oil-based poly isn't going to be mopped around with an applicator, oh no, you're gonna be on your hands and knees with a white China bristle natural brush with no polyester blended in there.

I plan on a cheaper polyester with an upgraded padding in a neutral color.

Your best bets are Shaw for Nylon (typically more durable than polyester for super high traffic), and Dreamweaver for polyester (by far the best polyester carpet in terms of bang for your buck and stain resistance, but not quite as durable as Nylon. 

This isn't an area in which I have any expertise, but Google tells me that microfiber is a form of fine polyester.

We did some research and learned that hotels use sheets made of percale - a cotton polyester blend.

Cotton polyester blends are great for sheets.

I’ve actually had to switch from nice cotton towels to microfiber polyester towels because the dryer takes forever to dry 8 cotton towels and the washer takes over 1.5 hours to complete a cycle (being stackable it’s also a top load so w/out the agitator so I’m not even sure what kind of washing the thing is doing). +1 to anything with an agitator that’s more focused on washing than saving a bucket of water.