Glad to hear folks like my setup.
Ah yes, Tent Topped Camping is the way to go, but I am a little bias, I own Compact Camping Concepts. Visit Top-Tent.com for rooftop tent details. If you are close to Salem, OR I stock them and have demo tent availablle to see in person.
My favorite for the Sidekick is an Oasis II model, although these are on longer available.

Now the FrontRunner Featherlite is the one I use on my Sidekick because of it lighter weight and ventilation panels in the roof like a backpacking tent.

The Safari style model pictured above is also a nice rooftop tent, although it does make my Sidekick fell a bit top heavy.