Pocket spring mattress Our mattresses are finished using high quality damask combined with high grade foam. The spring is considered to be the soul of a mattress .Each of our spring has passed the fatigue test. Advanced coiling machines guarantee the supreme quality of each spring and coil. Our mattresses are finished using high quality damask combined with high grade foam. The spring is considered to be the soul of a mattress .Each of our spring has passed the fatigue test. Advanced coiling machines guarantee the supreme quality of each spring and coil.