We are very pleased that such an affordable mattress ended up being such high quality. We ordered this specifically because it contains no fiberglass, which was a big concern for our home and health. It was delivered the next day after ordering, which was a huge plus. It rose to its full size and height within 30 minutes of unpacking and we slept on it straightway. It has great support and is very comfortable. I'd call it medium firmness, not plush and not overly firm. Am planning to buy another this week. Highly recommended. Wayfair is a terrific company to buy from.