Shipped very quickly (ordered on March 20 and was at my door March 24, 2017), instructions very clear (located on packaging and inside box).  The mattress expanded very quickly to exactly 6" after letting sit for the recommended 48 hours, the mattress had a touch of an odor (to me only, but others in the household could not smell a thing), which quickly dissipated ..... This mattress is extremely comfortable ...... I was very hesitant to purchase sight unseen and unable to try out and purchased solely on customer review ... can honestly say that it is a GREAT PURCHASE!!!