In the field of acoustics we don't "get it better" - we solve problems.
U don't mention what ur PROBLEM is. U don't even say if it's opting 4 a mix room or a recording room.
Carpets will absorb a single section of the spectrum. If ur room's fq response presents a huge spike in that frequency area - then by all means -do.
I find it hard 2 believe, though.
The goal in a mix room is a neutral listening field, free of early reflections near the speakers, a fq smooth decay curve, and a reverb time 2 suit ur music.
Ur room is small by control room standards. IN THEORY it should present some problems. Tell us the problems - we'll try 2 advise a solution.