Mattress was definitely not medium. Instead, it was a firm mattress and felt like a rock when sleeping. Tried to adapt to it and just deal with it since I’d likely only have it for one year, but i woke up two days in a row with back pain. The sides of the mattress also give so that it feels like you’re going to fall out of the side of the bed when getting up. Worst purchase from Wayfair thus far.