I grew up with percale sheets and wanted to give them a try again.  Since these sheets are cotton they are cooler to sleep on and while not super soft yet I know that percale does get softer with each wash.  If you don’t mind wrinkle you don’t have to iron but I prefer a smoother look to my sheets so I did iron them. I don’t really mind ironing one or two things. The attached picture of the pillowcase show ironed and straight out of the dryer.  The fitted sheet has very deep pockets and fits the box spring very well.  I like my top sheet to reach the top of my box spring.  As such the top sheet would be better if it was about 6 inches wider in total.  If you are interested in the “white” set this is more off white or eggshell.  All and all theses are good hot weather sheets.