Hilton Rosemont/Chicago O'Hare at 5550 North River Road, Rosemont, Illinois.

Connected to the Donald E. Stephens Convention Center via covered walkway, this contemporary hotel off Interstates 190 and 294, is also 3 miles' drive from Chicago O'Hare International Airport.
All rooms and suites offer chic decor, floor-to-ceiling windows and custom-designed beds, plus 37-inch flat-screen TVs and WiFi (fee).
Dining options include a relaxed restaurant serving classic American dishes, a cocktail lounge and a cafe. Other amenities include a 24/7 fitness center and a heated indoor pool with panoramic Chicago views. There's also a business center, over 22,000 sq ft of flexible meeting space and a free airport shuttle.

This place is super expensive for the quality. I would definitely try to find some place else. Didn't have any particular problems with it but for the price they were charging I expected something way nicer. There's no refrigerator in the room and the buffet downstairs is $25 bucks for the breakfast.