Miller's Rest Area

I had never before spent a night at a rest area. This place is not your typical rest area.
First off, no trucks are allowed. Secondly, there are at least three water spigots and a dump station (there is a sign stating the water and dump are closed in winter). Finally, there are two camping areas here and one is absolutely enormous. I chose the enormous area which is just off of the "exit" road. Follow the signs to "exit" and you will see the "overnight camping area" sign. This area is a large gravel (and fairly level) parking area with several picnic tables lining one side. I arrived at about 2:00 on a Sunday afternoon and was the first rig and parked in the far northwest corner as far away from the road as possible. Four others joined me during the afternoon. The other area had several rigs by morning as well.
While it is right next to the road and there is significant road noise until around 10PM or so, it was very dark and I got in a good night's sleep.
The only cons I could see here were the road noise, the cleanliness of the bathroom left much to be desired and all of the trash cans (there are many) in the camping area were all overflowing with trash bags also piled alongside of them. Fortunately, there was no loose trash blowing around.
If passing through this area, I would most definitely stay for an overnight.

Great overnight spot 13 miles west of Tonopah on Hwy 6. Maximum stay is 18 hours as at all Nevada rest stops.

To get to the overnight RV spots drive past the grassy area on the right (it may not be obvious that the entrance road continues if there are automobiles parked - I chickened out and temporarily parked in the day use parking and walked over to make sure we could continue). The road is a one-way loop so you won't be coming out the same way you go in.

The overnight area is a large, paved and gravel area with sufficient space for 10 or more RVs (more, if carefully parked, but it is just a big, empty space with no markings).

I stayed one night here in the east parking area by the entrance/exit on my way to Death Valley. There were a couple of camper vans and a fifth wheel sharing the space, but I never heard a peep from any of them. And the highway had little traffic after 10 or so. When I visited the bathroom at night, it looked like something had been slaughtered in there. But by the time I left the next morning, it had been cleaned. Tonopah is just 13 miles up the road, so if you or your vehicle need fuel...

We took a chance by not stopping in Tonopah, as this is the last stop for quite a ways in this stretch of hwy 95. Glad we waited. Quiet parking lot rest area with 18 hour limit. Huge parking lot. Plenty of space to stretch your legs and walk the pup. We arrived at sundown. We had space to setup our grill and relax outside before going to sleep. Only 3 other rigs next to us. Close to highway, but not much traffic at night. Drinking water and dump area. You may want to use your own bathroom. Probably as good or better than many RV parks I have seen. We did see another large parking area towards the exit. Would stay here again!

Have stayed here 4 times and stopped to use the dump probably a dozen times. We stayed in the back right normally (where the overnight camping sign directs you to go) but once there were quite a few RVs in the area so we stayed outside the rest area, on the south side. We're from Las Vegas so this is a super convenient stop about 225 miles from home. (Plus I'm addicted to the BBQ Sunday at the Tonopah Brewing Co. LOL)

Dump is almost always open, only seen it locked up once.

If you park in the back where the signs direct you, don't be "that guy" and park your 50' long train parallel to the small grassy area with the picnic tables where you cover 2 or 3 of them at once. :(

If you want fresh water there is a fill near the dump but those always make me nervous when the fresh and non potable spigots are side by side... anyway, there is a fresh water spigot north of the dump about 100 yards or so. It's between the camping area and the dump as you're driving through the rest area, and this is where I ALWAYS fill.