update

Task/Sleep/00DESCRIPTION

@@ -4,3 +4,6 @@ Write a program that does the following in this order:
 * Sleep the main [[thread]] for the given amount of time.
 * Print "Awake!"
 * End.
+
+;Cf.:
+* [[Nautical bell]]

Task/Sleep/COBOL/sleep-1.cobol

@@ -0,0 +1,18 @@
+       IDENTIFICATION DIVISION.
+       PROGRAM-ID. Sleep-In-Seconds.
+
+       DATA DIVISION.
+       WORKING-STORAGE SECTION.
+       01  Seconds-To-Sleep       USAGE COMP-2.
+
+       PROCEDURE DIVISION.
+           ACCEPT Seconds-To-Sleep
+
+           DISPLAY "Sleeping..."
+
+           CALL "C$SLEEP" USING BY CONTENT Seconds-To-Sleep
+
+           DISPLAY "Awake!"
+
+           GOBACK
+           .

Task/Sleep/COBOL/sleep-2.cobol

@@ -0,0 +1,23 @@
+       IDENTIFICATION DIVISION.
+       PROGRAM-ID. Sleep-In-Nanoseconds.
+
+       DATA DIVISION.
+       WORKING-STORAGE SECTION.
+       01  Seconds-To-Sleep       USAGE COMP-2.
+       01  Nanoseconds-To-Sleep   USAGE COMP-2.
+       01  Nanoseconds-Per-Second CONSTANT 1000000000.
+
+       PROCEDURE DIVISION.
+           ACCEPT Seconds-To-Sleep
+           MULTIPLY Seconds-To-Sleep BY Nanoseconds-Per-Second
+               GIVING Nanoseconds-To-Sleep
+
+           DISPLAY "Sleeping..."
+
+           CALL "CBL_OC_NANOSLEEP"
+               USING BY CONTENT Nanoseconds-To-Sleep
+
+           DISPLAY "Awake!"
+
+           GOBACK
+           .

Task/Sleep/Julia/sleep.julia

@@ -0,0 +1,5 @@
+print("Please enter sleep duration in seconds: ")
+input = int(readline(STDIN))
+println("Sleeping...")
+sleep(input)
+println("Awake!")