Hi enet,
Welcome to the Mattress Forum! 
Unfortunately your pictures did not attach to your post.
“Hotel mattresses” tend to be more basic versions of the retails products that many mattress companies offer (which isn’t a good thing). They tend to be firmer products using softer “top-of-bed” materials to create extra plushness. There’s more good information about hotel mattresses in post #3 here.
In most cases, hotel/contract/hospitality bedding purchases are disappointing and like all major brands they contain a lot of lower-density polyfoam which is subject to early softening and breakdown. There really isn’t much value there.
Without the specifications of a mattress, it’s not possible to approximate the mattress. You can see some examples of Sealy Hotel mattresses here and here and as you can see they range from plush to firm and have a variety of different types and quality levels. In general though they will be layers of lower-density polyfoam over innersprings and won’t be very durable.
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What I would suggest though is to start from the beginning and test for the pressure relief, alignment, and overall feel that you need and prefer, and best try to approximate the feel that you preferred in the hotel, but doing so using products containing quality materials. The guidelines expressed in the mattress shopping tutorial here are a good place to start. If you provide me with your zip code, I can see if I am aware of any retailers in your area who might be able to provide quality products or assistance in your search.
Your other option, should you desire to try and find that exact mattress, would be to look on the law tag for the Sealy factory that made the mattress and phone them directly with the number and they would be able to provide you with the same or closest item in their current line up.
Phoenix