accommodation options in Mexico

Hola to those who'd been to Mexico before:Can you recommend some nice and affordable places to stay in places like Playa del Carmen, Tulum, Chichen Itza, Palenque, and Mexico City? My budget is between $15 to $35 per night, private room preferred as I go to bed pretty early and am always scared ...

ve a partner, who shares the same budget, actually with $70 you can check in some quite nice hotels, at least in MX City.” yes I do have a LP Mexico but most budget places listed there don't have a website. I was just trying to figure out a place that'd be afforda,ust figured out info in pl not always updated. If you could have a partner, who shares the same budget, actually with $70 you can check in some quite nice hotels, at least in MX City