We did 3 kids in our small bunkhouse, two 17 year olds and a 10 year old. Bunks were a must for us as our two would fight so much on a common mattress that we had actually bought portable bunkbeds for the tent before we bought the trailer! We did 3 weeks straight without any real discomfort, it was a little less convenient to have to convert the dinette every day but it only takes a few minutes and if we would have bought any larger we would have needed a bigger truck since we were at ~90% of weight on the truck when packed for 3 weeks and with the extra kid.