Adults Only Resorts & Hotels in Illinois from $57

This hotel features an indoor pool and a gym. Traveling on business? Take advantage of the 24-hour business center and free WiFi in public areas. Guests will appreciate freebies like continental breakfast and free self parking.

This cabin featured laundry facilities and barbecue grills.

An indoor pool, free self parking, and laundry facilities are featured at this motel. Guests will appreciate free perks like on-the-go breakfast and WiFi in public areas. Staff at the 24-hour front desk can provide around-the-clock assistance.

Free self parking is available and the hotel's front desk is staffed around-the-clock. WiFi in public areas is free. A garden is also provided.

Free water park access, 5 restaurants, and 6 indoor pools are all featured at this smoke-free resort. Bring the family and enjoy the lazy river, bowling alley, and mini golf. Enjoy the seasonal outdoor pool and visit the 2 bars/lounges and poolside bar for drinks.