Have a handful of lakes that I love to fish that are 2.5-3 hour drive to get to...for last 4-5 years I have just set a very early alarm and hit the road...while I haven't often minded it too much (easy driving at that time/listen to fishing podcasts), I'll be 58 this year and I think I'd like to alter that habit...have a 4Runner and started last fall at looking at foam/inflatable mattress to lay in the back and start driving to destination the night before and sleeping in vehicle...I think it's a very realistic option for early spring/summer (before the heat/humidity kick in) and late summer/fall to do it somewhat comfortably...curious how many of you have chosen this as an option...if I do, I'm trying to come up with a plan for WHERE to park and sleep...have alway heard about the Walmart parking lots being an option but don't know if that's true...truck stops scare me...see truckers use off ramps...rest areas safe?...use a campsite near lake (but might be dark when I arrive/tight quarters for parking vehicle/trailer...gimme your thoughts...and any good mattress/memory foam options you've tried...TIA