We're camping this weekend (first time with the DC's) and I'd looked at the messages here and decided:
plastic backed picnic rugs under airbed/travel cot
blanket/fleece on top of bed/cot (but under us, as a sheet)
for baby - PJ's, usual baby sleeping sleep (i.e.e arms out), cot duvet
for toddler - kid's lightweight sleeping bag plus duvet plus fleece throw
for us - duvet + throw
Is that too much/too little for this time of year? Btw, I am very soft, don't like the cold....!