ST bluenrg2 low power current consumption

[SMano]

I am developing a Beacon model application with ST bluetile. Bluenrg2 low power current consumption differs between SensorDemo (200uA) and Beacon application (1.8mA). I made sure that the bluetile goes into SLEEP_NO_TIMER mode and wakes up only when triggered.  What is the contributing factor to the low power current consumption. Other than calling BlueNRG_Sleep(SLEEP_NO_TIMER,0,0). what else has to be checked to reduce the current consumption.