Bests & Worsts Reviews from Amazon

I bought this since I moved from a extra plush pillow top mattres to a firm one after passing through a hybrid spring/foam one, so my back would really complain in the morning and I couldn't get used to the firm mattress. It feels like a bunch of pillows sewed together and after 2 nights of sleeping on it I feel like my body just falls into a whole like you can see in the pictures. It's all bumpy. The clear package bag didn't have anything on it, so you can't even tell who is really selling it. No brand, nothing.