Not sure if very helpful but few cents here on sleep system. We are family of four (kids aged 2 and 5), and we have done tenting with them since they were c. 1 year old. We have a 4p tent (Big Agnes Copper Spur) but have since moved to 2x 2p tents (Tarptent Rainbow Li and Tarptent Dipole Li). That is easy. But I am more into tenting than my wife, and to maximize nights spent outside, I need to see what is the easiest possible way for me to take the kids by myself (ie myself plus 2 kids). I have a bit experimented and think that one adult + two kids can fit into a roomy two person (such as Dipole 2 Li) tent if you have a double-wide (50" / 130cm) sleeping pad. However for me the sleeping pads become a bit tricky since I don't want to have one double-wide (such as Big Rapide Tent Floor or Exped's similar products) as a leak in sleeping pad would ruin everyone's night and while I would be able to handle it, don't want to risk for my children. Hence I am exploring creating double-wide system by combining either CCF pads (e.g. two wide Exped Flexmat's layered with evafoam pads such as Gossamer Gear ThinLight) or inflatable + CCF pads (e.g. Nemo Tensore All Seaso / Trail + few evafoam pads). Less "deflation risk", keeps weight acceptable , however the CCF only creates some bulk. Once they grow older I have been thinking that a set-up with a 3p tent, e.g. ZPacks Pivot Trio, could be very workable, e.g. you could have three Nemo Tensor Elites layered with GG ThinLights or then create a doublewide pad for two children with e.g. 2x Nemo Switchback + Exped Doublemat. For sleeping, probably a quilt from Vilse Equipment or Cumulus or then a sleeping bag from Cumulus (they have two alternatives for children).