Having been though the kids / tents thing myself, I'd also recommend 2 x 2 person tents. If you have one already then just get a second. Of course, it could be a small one like a Minaret.
One issue we had was kids playing / fighting when they were supposed to be sleeping; this is fixed by putting one in each tent.
Also, you might find that over the years you might not use them as often as you currently hope.
Cheers
JamesMc |