I worked in pest control for about 5 years, and I figured someone here might need some advice on how to deal with bugs and mice. So if you've ever wanted to know, now's your chance.
My biggest recommendation, right from the start: Never pay for pest control. You can do a better, more ethical job than any business ever will.
I want to edit to say, my inbox is always open for questions too.
Apartments are the hardest. It's impossible to contain something like that to one unit, no matter how well built the building is. And the buildings are never well built.
Steam cleaning, heat, and a good IGR are the best things I've used. Big glue traps on the feet of the bedframe can help, once the mattress has been bagged, and the bedding cleaned.