I opened and fluffed my new 5ft Kozysac just last night and it's already "just right" I was really expecting it to take at least a week to fluff to full capacity. Instead, it took only 24 hours. I worked hard at fluffing it as much as possible, then let it sit overnight to expand. It truly is my favorite piece of furniture. If I had known about these Kozysacs sooner, I would have also ordered a couch-length one to use instead of my futon. I have a small studio apartment and the 5ft sac seems to be just the right size. I'm 5'3" tall and there's plenty of room to spare when I sit in it. It's not so large that it takes up half of the apartment though. The cover is also high-quality and very attractive. Overall, this is a fantastic product. Kozysac will surely have a return customer.