The mattress is a bit firmer for Medium. I am only giving 2 stars because of Wayfair's false advertisement. I am only giving 2 stars because of Wayfair's false advertisement. Wayfair customer service is horrible. Wayfair advertises itself as "fast delivery," with "Get it by X date" false claims. However, once you purchase the items, it miraculously changes the date to just an "estimate," by the time you get the tracking number, the delivery range is a week plus on the expected date. A classic click-and-bait because by that time, you have wasted a week waiting for the tracking number, and they charge you to ship things back. Managers will give you the runaround if you are even connected to them since the reps are told to say the manager cannot do anything. I used to like ordering with them in 2016, but my 2023 experience was not pleasant; building trust with your customers should be your number 1 goal. Unsure what you are gaining by lying to returning customers...