I purchased a california king for a king bed and it just fit perfectly.  It has a nice nylon t-shirt side which will hold up to laundering.  Some matress pads have wimpy sides that tear and fall apart easily.  I would consider buying a larger side with this mattress pad to ensure a great fit on your bed.  The pockets on the mattress pad are deep and don't pop off the bed when we lay in it.  I would purchase this item again.  Loft on the mattress pad is average but the overall construction of the pad is good.