I have a mattress that is soooooooooooo thick that we could just barely get the edges of deep pocketed sheets stretched over the mattress edges. So, I have been looking for sheets that would work. These sheets made it! Amazing! It was still a little tight, but none of you can have a mattress that is this big! My husband bought it slight unseen and just asked for the best mattress that they had. This top mattress is bigger than the box springs and really thick, so if your problem is trying to get these sheets over the edges, you definitely won't have a problem. The sides are a different material, but it helps to pull them over the mattress edges and is a nice material but not like the sheet. It stays on the sides so it isn't an issue. Wrinkles...slightly, but not too bad if you make your bed after pulling them out of the dryer. As to the softness, I have softer sheets (I usually get 600-800 count), BUT THESE ARE PRETTY SOFT FOR 400 COUNT. MY ISSUE WAS GETTING THE SHEETS OVER THE MATTRESS AND THESE ARE THE FIRST SHEETS THAT HAVE WORKED. YEA!