hey everyone,

I recently took a chance and bought some latex from FBM.  I got the medium 6in core and two 1in soft toppers.  This combination is definitely firmer than my previous mattress which was severely sinking in the middle; however, my back is starting to hurt.  Is this a sign that my latex combination is too soft?  I am 5'8 and about 133lbs. 

Last night I decided to take one of the softer toppers off and the mattress seem to be a little firmer, but my back was still a little stiff.  Should I try to lay on the mattress for a few more days or should I order some firmer toppers?  Would placing a firmer topper on the med 6in core help? 

Any suggestions would be greatly appreciated!

Tuan