Was not medium/firm when unpacked out the box. Very disappointing bc I have two others that were spot on but for some reason the king size was not. You sink deep down when you’re on it.
Just opened it up today. Filled out over our bed frame. Voila! Instant mattress! Bought on recommendation of a family member who has had one for 8 years and they love it. Tested it….seems perfect. Will still be a few days before it becomes our permanent bed.