Usage: /usr/bin/sleep NUMBER[SUFFIX]...
  or:  /usr/bin/sleep OPTION
Pause for NUMBER seconds, where NUMBER is an integer or floating-point.
SUFFIX may be 's','m','h', or 'd', for seconds, minutes, hours, days.
With multiple arguments, pause for the sum of their values.

      --help
         display this help and exit
      --version
         output version information and exit

Report bugs to: <bug-coreutils@gnu.org>.
GNU coreutils home page: <https://www.gnu.org/software/coreutils/>
General help using GNU software: <https://www.gnu.org/gethelp/>
Full documentation <https://www.gnu.org/software/coreutils/sleep>
or available locally via: info '(coreutils) sleep invocation'