Stay somewhere else. This host should be removed from Airbnb. The host stops allowing check ins or answering their phone at 10:00pm. If you aren't there by then, they are happy to leave you locked out in the cold all night. I communicated my expected late arrival time at the time of booking - with no comment or objection from the host. The current listing doesn't mention anything about a 10:00pm deadline. Again - this is a host who has no place in the hospitality business.