Reading the reviews, I was fearful that I would be getting a flat pancake and an annoying return policy. However, mattress arrived precisely on time. Took off all the package wrapping. Depth of the mattress expanded from 1 inch to 10 inches in about 90 minutes. The top and bottom expanded a little more slowly. Some tugging and pushing seemed to help. Flipped it over a few times. Mattress also seems to like warmth--the side that was closer to the radiator expanded faster. Pillow arrived extremely flat. Took it out of the case and played around with it. Expanded to about 1.5-3 inches (it's a contour pillow). Very little chemical smell. Memory foam is extremely comfortable. Not as good as Tempur Pedic mattresses, but at a quarter of the price, it really is worth your money.