Automatic Roof Vent? Oh Yes!

One thing I hated last year was sleeping, and it's so warm in the van that it's near unbearable, but I can't have the door open, and not enough power to be running a fan all night (See post about dead battery). Then there was having the roof vent open, which was great, until it started to rain in the middle of the night, and I'd get little drops hitting me in the face, waking me up, and disrupting my sleep, as I am now awake, have to get out of bed, and close the vent. Falling back asleep for me is difficult once I'm out of bed, and then there's the sound of rain, which is nice and I want to listen to it.
This fan appears to be a great solution to those issues: FanTastic Model 6000
It for one, has a fan, which I don't have right now, so already a bonus. This fan though, is the top of the line it appears. There are others on the site, so have a look for what suits you. This one is the one I need. Aside from just being a vent with a fan, it's a vent with a fan that can either pull air in, or push air out, has variable speeds so you don't need to make it a wind tunnel in your van. It has a both temperature and rain sensors. The temperature sensor will monitor the temp inside the van, and open and close the vent, turn on the fan, and keep a constant temperature inside. The rain sensor will close the vent so you don't get water damage inside.
That whole getting out of bed to open and close the vent? A thing of the past, this beauty even comes with a remote.
How cool is that? (No pun intended)