- The fine print
- Camping prohibited but sleeping in your vehicle is allowed, per WYDOT's official rest area brochure (Public Affairs, Nov 2011: 'don't pitch a tent, extend your RV's slideouts or otherwise set up for an extended stay'). Brochure dated 2011; flag for re-verification if WYDOT publishes newer guidance.
Parking overnight to sleep and camping are two different acts under most rules. Camping usually means setting up outside the vehicle: a tent, an awning, chairs, a fire. Staying inside a legally parked vehicle is often treated differently. Which one applies to you.
The posted sign and the officer on the ground beat this table. Rules change; the date above is when we last checked.
Wyoming draws the line at camping, not sleeping. WYDOT’s official rest area brochure puts it directly: “Camping is prohibited at rest areas, but drivers who need rest to safely continue their travels can sleep in their vehicles in the parking lots.”
What Wyoming actually says
The brochure, published by WYDOT Public Affairs, spells out what camping means here: don’t pitch a tent, don’t extend your RV’s slideouts, don’t otherwise set up for an extended stay. Inside that boundary, sleeping in your vehicle is expressly described as allowed, and the reason given is the honest one, that a tired driver on I-80 in a ground blizzard is better off asleep in a parking lot than pushing on. No hour cap is stated anywhere in it.
About the age of this source
Here is the caveat, and it is a real one: the brochure is dated November 2011. It is still the official WYDOT guidance we can point to, and we confirmed the document itself on 2026-07-17, but a brochure from 2011 is not the same as a current policy page. If WYDOT publishes newer guidance, it supersedes everything written here. Until then, treat this as the best available official answer rather than a settled current rule, and give the posted sign at the rest area the final word; it beats this page and the brochure both.
Practical notes for Wyoming stops
Rest areas can close for season or maintenance, and Wyoming interstates close in winter weather often enough that WYDOT’s road reports are part of trip planning, not paranoia. Check wyoroad.info or dial 511 before counting on a specific stop being open.
And keep the rest area in perspective. Wyoming has more legal places to actually camp free than almost any state: BLM land and national forest where the tent, the slideouts, and the multi-day stay are all fine. If you are not mid-drive, free camping in Wyoming is the better night. For rules in towns, see sleeping in your car in Wyoming, and for how neighboring states compare, start with overnight parking at rest areas, state by state.