Rooms are being held at the Union Club Hotel which is on campus. You will have to call their reservation number, (800) 320-6291, or (765) 494-8913, to book these rooms. Other close hotel options are:
Hampton Inn, West Lafayette (765)-269-8000 and Hilton Garden Inn (765) 743-2100, are both located at Wabash Landing, a 15-20 minute walk to campus, and each has a shuttle that will take you to and from campus.
Holiday Inn City Center (765) 4231000, is a slightly farther walk, maybe 30-40 minutes, and also has shuttle service.