Hi Ilene,
The image you attached is upside down and I can’t read it very easily but it doesn’t appear to have the information I would need anyway. The information I would need to make any meaningful comments about the quality of either mattress is the thickness, type, and density of all the foam layers and type, gauge, and coil count of any innersprings in each mattress.
based on the sku number (DMC80BD42) I think that the Birthday 13 may be one of the mattresses you are considering and their description lists most of the necessary information (if you click on details).
They don’t list the density of the 5/8" layer of gel memory foam but it’s less than an inch so it wouldn’t have a significant effect on durability. The 2" layer of polyfoam under this is 1.8 lb density which is a good quality material. The Verticoil is an entry level innerspring but the innerspring isn’t normally the weak link of a mattress anyway. Overall … there are no obvious weak links in this mattress although of course it would also be important for your kids to test it for PPP to make sure it’s suitable for them to sleep on.
If this isn’t the one you are looking at I would need a link to the right mattress.
If you can also find a link with similar information for the other mattress you are considering (or find out the information from Jeromes) I’d be happy to make some comments about it as well. The minimum quality guidelines I would use for a memory foam mattress are listed in post #10 here.
Phoenix
PS: I deleted one of your posts which both had the same attachments