As far as the pop up goes I will give ya the answers to each question: The camper sleeps about 5 to 7 people it just depends on how big of one you get.. Im not exactly sure how much it weighs but I know I can move it myself so I would guess around 1,000lbs. Maybe more like 900lbs.. New they can cost anywhere from $6,000 to $18,000 It just depends on what you get on them... The air conditioner does cool the entire camper. The sides are just screens but the inside can be zipped up or down. Tent camping is probably still my favorite though!! Anyways I would start with a tent and work your way up to a pop up then gradually upgrade.I have a Jayco as well but it is a 24 foot full size Travel camper.. I love camping its so relaxing!!