Hilton at Chicago'O Hare

Arriving in the United States through Chicago airport in the evening after a long and exhausting travel itinary, one of the best options you can do is to go and have a nice sleep.
And where is a better place to sleep than at the airport itself. There is a Hilton hotel at Chicago'O Hare airport in 2011 and it seems that you can even walk from the airport therminal to the hotel. This hotel seems to be less expensive during the weekend, including fridays. - Up