We have a nice big coleman tent, but we are going to Robber's Cave in the middle of the summer and I would like to find a thicker army type tent that i can either rent or buy from someone and use my portable A/C inside of. The tent we have is very thin and doesn't keep the cool air in. That time of year with my young children I would be able to keep them much more comfortable with something thicker. If anyone has any ideas on where to get one that doesn't cost $1,000 or wouldn't mind renting it a non smoking family of four for a weekend, please let me know! Thanks! I would be willing to pay cash or hook you up with something from Best Buy in return....