Both have there place but if traveling by truck why have two enclosed
shelters? A small bug net will cure tarp tent insect problems and weigh
next to nothing. A head net or more traditional bed size can both be handy as a multi-use items.

under a tarp i use a one-pound gortex bug-proof bivi when rain or bugs insist on hassling me. plus it can be used alone as a sleeping bag when the feather one is too warm. all together, a very flexible outfit.