Hi thisisajs,
There will be a break in and adjustment period for every new mattress that can vary from person to person so this would be completely normal. Some people don’t seem to notice it at all but it will normally be less than 30 days in most cases (see post #3 here).
While you have good options to change the layering of your mattress either by rearranging or exchanging layers if it turns out to be necessary … it would be preferable to wait about 30 days or so or at least a minimum of two weeks whenever possible before deciding to make any changes to your mattress.
Phoenix