Hi sayedhamdani,
You can read more about the different types of latex in post #6 here and more about natural rubber compared to synthetic rubber in post #2 here. Synthetic latex is a high quality and durable material compared to other types of foam and can be a very good value choice but overall most manufacturers and “experts” in the industry would consider natural rubber to be a higher quality material (although it’s also more costly) than synthetic rubber.
[quote]What do you think about the Blue Shoal - 7" Latex Mattress
That’s all latex right ?
And since it’s cheap I believe that it’s synthetic[/quote]
You are correct that it uses synthetic continuous pour Dunlop latex manufactured by Mountaintop foam (although some of the softer ILD’s include a very small amount of natural latex). It’s a good quality mattress with no obvious weak links (again … synthetic latex can be a good quality/value choice for those who are looking for a lower cost latex mattress) and Spindle Mattress is a member of this site which means that they compete well with the best in the industry in terms of quality and value.
I would also “echo” some of TimJonst’s comments as well which IMO are excellent.
Phoenix