Sleep mode in nRF Connect sdk for low power consumption

Question

Hi, 
 Iam using nrf Mesh Chat example in Connect sdk 
 It consumes 6-7 mA now, what should i do to put it into sleep wake again when required for low power consumption??? 
 I have used k_cpu_idle() function for sleep and 
 CONFIG_PM is set to y & CONFIG_PM_DEVICE is also set to y in prj.conf file 
 but that still consumes 6-7 mA. 
 TIA.

usmanmehmood55 · Accepted Answer

Vignesh R said: It consumes 6-7 mA now 
 6-7 mA means it is not sleeping at all, the radio is still on. 
 You can use my answer here to put your device in sleep and wake it up programmatically. And k_cpu_idle() doesn't sound like the right function to use. You should be using k_msleep(uint32t milliseconds) instead. 
 Try using the system_off example provided, in order to get a better understanding of the different power modes.