Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32W108/PWR/PWR_DSLEEPCR1#0x0
PWR_DSLEEPCR1
PWR_CSYSPWRUPACKCR
https://github.com/cmsis-svd/cmsis-svd-data