CosmoLiving by Cosmopolitan Queen EcoSleep Lyocell Mattress Pad: 300 Thread Count, Sateen, 4-Way Stretch Skirt, Fits 20" Depth

I ordered for a mattress but I got mattress pad. In case they don’t deliver a mattress they need to specify it and just add photo of the pad but not the whole mattress which could confuse customers like me.

it's dangerous for side sleepers because the narrow width (more narrow than a twin sized mattress by several inches) can harm the knee due to the uneven surface. it's wonderfully soft, but damaging the knee joint is unsafe. I think most mattress pads are more narrow than the width of the mattress, but this is too narrow. plus the mattress pad doesn't stay in place because the sides are too loose. it slides during sleep, so that the overall 3 inch gap slides to one side or even over the side of the bed creating a 5 inch gap on the other side. basically, the surface of the bed is uneven. it ended up in the garbage after one night. it's too bad because it was really soft.