The cot is easy to open up and then fold up if needed.  I read the sizes but failed to notice the height.  The cot size is perfect for me, but I was surprised to see how high it is from the floor.   A little too high compared to my other cots and the dogs won't step that high.  After a couple days, the cats decided to use it thankfully.  I am disappointed in that the cover is not removable for washing like my other cots.  But overall it is a nice cot if you don't mind not being able to wash it in the washer.