We received our foundation several days before the mattress came giving us time to assemble and place inside the bed frame. Our bed frame is an 1830 antique. The foundation fit like a glove inside the rails and was easy to assemble. The mattress arrived in good order and opened out nicely after we got it out of the shipping box. It fit on the bed exactly as anticipated and per our measurements. It is supportive and comfortable. We get a very good night’s sleep. The mattress could be improved if it had side handles. While maker’s theory is it only needs to be spun and not turned, handles are not essential. But we have an antique bed with real bed posts and you cannot spin around them. Mattress must be lifted over posts. The mattress Quantam Edging is not as much as we had hoped. Our outgoing mattress had very strong edging which helps greatly getting into and out of bed, especially a high (32-1/2") antique bed. Strong edging also helps prevent accidental roll offs. Except for the two inconveniences, the bed gives a good rest. The coil structure keeps two occupants from rolling into each other as well. We were happy with the customer service and considerable input of CMM staff in setting up or order.