Day Use Hotel
Day Use Hotels is an online guide that gives an overview of hotels which rent rooms for a few hours. The prices are 30% to 70% cheaper compared to the standard one night reservations. Currently the list count 200 hotels in Europe. There is also an app available of the ‘Day Use Hotels’.
Update June 2012: It’s now possible to book hotels in New York as well.
Update January 2015: Read the article about ”Book a room for a few hours”