I bought these slippers two winter seasons ago....so that would have been in the fall of 2016.  I could tell they really did have a memory foam foot bed from the first wearing.  They were very comfortable to wear that first year.  I had just started having some plantar fasciitis issues and sometimes pain in the forefront, too.  I tried about 5 pair of really inexpensive slippers ($15) but they felt like I was just standing on the wood floor. Not so with there temper-pedics.  My feet never hurt at all in these slippers.  I bought a size 8 and they were a teeny bit big for my 7.5 foot, but I usually wear socks in the winter, so it wasn't a problem.  They were comfortable every time I put them on in the Winter of '16-'17.  And I am especially glad to report that the first time I wore them in the fall of '17-'18, they were still very cushiony and warm!  I have had expensive slippers that flattened out after one season (Sorel's), but not there.  The only thing I don't like about them is that they do have a little wedge shape heel and this means the back/heel of your foot is just slightly elevated.  Even though the elevation is slight, it is still enough to cause your foot to slide forward just a little.  But other than that, I think they are great slippers and I am looking forward to many more season of nice, cushiony, warm, pain-free feet!