I ordered this mattress cover for a 10 inch memory foam mattress on Friday, June 14th and it arrived the following Friday, June 21st.  It took a longer to get than the mattress did but it ended up coming on the exact day my bed was ready to sleep on.  It works like a pillow case, was easy to pull over the mattress and zips up at the bottom (or top - depending on how you put it on).  It is a light-weight material.  Washed and dried just fine (following the care instructions) and doesn't make noise at all.  It does have a little extra room which is perfect because I do plan on getting a mattress topper but it doesn't interfere with putting the sheets on the bed or scrunch underneath me.  So far so good!