I had a bottom entry but had 2QZQ convert it to the zip as it does make it easier arrange your sleep system and get in and out of your sleeping bag. Also I am 6'1" and at 270 rolling around in the hammock to get in my sleeping bag was not easy with the bottom entry. My son who is 5"10" and 132 had no problem. I guess as you get older you are less flexible. We have the explorer deluxe which I would recommend as it is a flatter sleep.