This this memory firm foam mattress is way too firm. The hardness feels like Im laying on top of concrete. Also all 4 corners are down about 3 inches lower. They look smashed. On top of that the mattress and also the frame were delivered to my neighbors 2 houses down. They were nice enough to return it to me. The address label is correct. They just delivered my items to 2 different neighbors!!! I need a refund as I cannot sleep on concrete firmness. Please let me know how to return this mattress.