@WhiteRose not sure if it is she/he - so I'll say this - s/he is so gorgeous. One thing I hated the most about fluffy cats - these MATTED thing - I have to take then like 2-3 times a year to have her trimmed. I tried so hard to keep 'em tidy ... I failed always.
@ridor9th Have you tried olive oil? take a bit and rub it at the base of the mat and after a few days the mat should fall off on its own.