OK, upon arrival the mattress had uncoiled in the box not a problem but do be aware that this mattress isn't wrapped so will spring out on you ! Very soft and you can feel the springs in parts side material of the mattress are almost see through and you can literally grab a spring. Not sure where the memory foam part comes in at this point as it feels like hollow fiber material in the top surface of the mattress,  can honestly say I'm unimpressed with this product, stiching is coming away too ! feel my daughter may suffer joint aches and pains. Avoid