Hi R1C0,
As you probably now from your reading on the site … I can’t make any meaningful suggestions about “what” to choose but I may be able to help with “how” to choose between two very good options.
If the type and blend of two latex layers is the same … then smaller differences in the range of 2 or 3 ILD won’t make a difference that most people would feel but as you get to differences of about 4 ILD or more then you may begin to feel a difference. Differences in upper layers will likely be more noticeable than deeper layers. Any differences between the covers can also make a difference in the feel and performance of a mattress.
Both SleepEZ and Foam Sweet Foam are members of this site (FSF is the newest member since a couple of days ago) which means that I think highly of them and they both compete well with the best in the industry in terms of quality, value, service, and transparency. While both mattresses have a similar design … FSF uses GOLS certified organic Dunlop while SleepEZ uses 100% natural Dunlop and while these both would have a closely comparable feel and performance (if the ILD’s are the same) … for some people an organic certification may be important. The “value” of being able to deal with a local business or purchase a mattress that you can try in person may also make a difference for some people and any differences between their exchange or return policies may also play a role in your choice.
There is also more about the most important parts of the “value” of a mattress purchase in post #13 here that may be helpful but in the end … when you are down to comparisons between “good and good” and there are no clear winners between them … then which of your final choices (see post #2 here) would be “best for you” will really come down to your best judgement based on all the objective, subjective, and even intangible parts of your personal value equation that are most important to you, regardless of what anyone else may choose.
With these types of choices … it would be difficult to make a mistake.
Phoenix