Availability — the dimension that decides this page
Winner: Casper SleepNormally availability is a footnote. Here it is the comparison, because both of these beds are leaving the market and one of them has already gone.
Emma has withdrawn from the United States. Sleep Foundation's Emma review states that as of January 2025 Emma mattresses are sold exclusively in Canada and are no longer available to US customers. Emma's own US site carries a "THANK YOU U.S!" banner, its sale page is titled "Emma Clearance! ALL Mattresses 60% OFF!", and its collections page says only Twin and King sizes remain on the clearance hybrid. The product pages for the Emma Original Hybrid and the Emma Hybrid Comfort both 404 to the homepage. SleepAdvisor marks the Emma Hybrid Comfort discontinued. There is, in other words, no live US listing to read a price, a height or a trial length from — and no queen, which is the size this comparison is about.
Casper is discontinued but not gone. As of July 2026, casper.com redirects the Original Hybrid to the Casper Dream Hybrid, GoodBed lists the Original among Casper's discontinued models, and Casper's own upgrade guidance tells Original Hybrid owners to move to the Dream. What remains is Amazon stock: ASIN B085H9FBBP, $1,495, listed as limited quantity. You can put a queen in a cart today and know exactly what you will pay.
That is the whole of Casper's advantage on this page and we would rather state it that way than dress it up. It is not a better mattress by a wide margin — it is the one that still exists in the size you want, from a seller with a returns process, at a number we can verify.

