I have bought many mattresses from Wayfair & all have been wonderful. This Plinio Mattress 
(Cal King ) did not disappoint. Popped right out & I was sleeping on it that evening (even though your supposed to wait 72hours ) On time delivery (fast ) , outside box was a little torn up but did not affect the mattress. It’s heavy & I was on my own at 65 to drag it in the house , down the hall way & into the bedroom where I didn’t pay attention & when the mattress unfolded it was top down so I had to flip it once it was done unfolding. Definitely not a one person job if your older but I managed. A hot tub & some ibuprofen overnight saved me from too much  pain the following day 
But all that doesn’t matter now as I am getting the best sleep ever on this mattress. I am definitely a side sleeper but have found myself comfortable sleeping on my back a few times. And my dogs appreciate it to . They give it 10 woofs & so do I. Price was perfect.
Thank you Wayfair for another great mattress!!