MileCheckRest areas
Can you sleep at a rest area in Illinois?
Your mile marker on screen as you drive. Plus live alerts and cameras in the MileCheck app.App StoreGoogle Play
Only briefly. A stop at an interstate rest area can't exceed 3 hours.
Cars
3 hours per stop at interstate rest areas. IDOT can post a shorter limit.
Trucks
Same 3-hour limit. One marked space per vehicle.
Camping and tents
Camping and putting up tents or shelters are prohibited.
Signs at a rest area can set a different limit. Follow the posted sign. Turnpike and toll-road service plazas often have their own rules.
Source
92 Ill. Adm. Code 533.20 and 533.40. Read October 15, 2026. This page summarizes the rule. It is not legal advice.