I ordered this bc I have issues with my back, including a slipped disk, and this specifically says it " supports lower back, allowing spine to stay neutral" so I went for it. This is not supportive. I sunk in like I was sleeping in a pothole & woke up a multitude of times throughout the night. I am not overly rotund, I weigh 200lbs, although my 55lb 8 year old sunk in like it was quicksand as well. The foam also does not rebound quickly enough...just stays sunk for a while, so turning over in bed was particularly awkward and uncomfortable. I had high hopes based on the reviews, but unfortunately this topper was not what it promised. Perhaps I got a defective one, but supportive is the last word I would use to describe it.