Is it illegal to sleep in a vehicle in tennessee
no
No, it's a noun or a verb. noun example: Go to sleep. verb example: I can't sleep in a car.
Drive or if you are parked, sleep.
Try taking it for a drive on your car.
Armor for Sleep.
no
Sure but leave room for air to flow
yes they could
When your on a plane or traveling a long way in the car
Unfortunately not
The noun clause is 'that I'll sleep.', functioning as the object of the verb 'is'.