Glad I could help, @Yissie0
It seems to be the case that a great many new hosts assume that guests will all be nice. It's a beautiful outlook on life to have, but this isn't a helpful view to take when you are a businessperson. Those who are business people need to be prepared for the realities of their business -- many hosts dont' quite realize they are business people, starting a business in property rental. The more prepared you are for the realities of this business, the less likely you will be seriously discouraged, because you won't be taken by surprise.
Guests with an entitled attitude who just expect to arrive at your house at 5am, -- definitely ones you want to avoid. Signs of entitlement are a "red flag" --see my post on red flags to watch out for, and this is the type of thing you want to screen out when you are doing your screening of guests before accepting them.
You might find some useful advice here, in my post Tips for New Hosts, or the post Red Flags for Hosts .
As well, here is a blog which describes Fifteen Guests You Don't Want
Also, be careful with how accomodating you are willing to be. You say, "If a guest is nice and they really want the whole house to be 85 degrees, we would be fine with it for just 2 nights." IN my opinion a guest who wants the house to be 85 degrees is not "nice" because that isn't a reasonable expectation -- that one can take someone's private home and turn it into a sauna. I would warn you not to allow anyone to do something-- anything -- just because they are "nice." What is "nice"? Some people smile and are polite when they steal from you. Instead of having certain rules for the "nice" guests and possibly other rules for the "not nice" ones, I think business people do better when they have the same rules for all guests. What is "nice"? In my opinion, the guests who are wiling to follow the rules you set , and dont' ask for exceptions, are nice.
Also, be aware that if you allow a guest to do something for 2 nights, you can't then very well argue that they should not also be able to do that same thing for 3 nights, 5 nights, or 2 weeks, and so 85 degrees for 2 nights can become 85 degrees for 2 weeks or more.
So I suggest -- Just create a set of clear rules (including maximum thermostat settings) and stick to them, and this clarity will help you and your guests, and then both you and your guests can be nice and content.