Hi Syracusa,
Some people really don’t like the smell of natural rubber and unfortunately some people are also much more sensitive to certain smells than others. The smell of natural rubber … like any natural material … can also vary from batch to batch as well. There is more about the smell of different types of latex in post #2 here and the smell of Dunlop can be a little stronger and more persistant than Talalay but it will certainly dissipate over time. There is also more in post #3 here that includes some suggestions that may be helpful as well. The smell of your mattress will diminish over the course of the first few weeks and if you visit Ikea and “stick your nose” in a Morgongava that has been on the floor for a few months you will see that the smell is greatly reduced to levels that most people wouldn’t notice which is where you will eventually be as well.
I agree that it’s always important to make sure that you are aware of and are comfortable with any return or exchange policy before buying a mattress and this is good advice for any mattress purchase.
Phoenix