Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Microchip Technology/ATSAML11E14A/PM/SLEEPCFG#0x0
Sleep Configuration
Sleep Mode
2 (IDLE): CPU, AHB, APB clocks are OFF
4 (STANDBY): All Clocks are OFF
6 (OFF): All power domains are powered OFF
https://github.com/cmsis-svd/cmsis-svd-data