diff --git a/doc/simh_doc.doc b/doc/simh_doc.doc
index 56ea8167..324442a2 100644
Binary files a/doc/simh_doc.doc and b/doc/simh_doc.doc differ
diff --git a/scp.c b/scp.c
index 8815d89a..0b0bc50a 100644
--- a/scp.c
+++ b/scp.c
@@ -1782,7 +1782,8 @@ ASSERT      failure have several different actions:
       " Pause for NUMBER seconds.  SUFFIX may be 's' for seconds (the default),\n"
       " 'm' for minutes, 'h' for hours or 'd' for days.  NUMBER may be an\n"
       " arbitrary floating point number.  Given two or more arguments, pause\n"
-      " for the amount of time specified by the sum of their values.\n\n"
+      " for the amount of time specified by the sum of their values.\n"
+      " NOTE: A SLEEP command is interruptable with SIGINT (^C).\n\n"
       /***************** 80 character line width template *************************/
 #define HLP_ASSERT      "*Commands Executing_Command_Files Testing_Simulator_State"
 #define HLP_IF          "*Commands Executing_Command_Files Testing_Simulator_State"
@@ -3961,6 +3962,8 @@ t_stat sleep_cmd (int32 flag, CONST char *cptr)
 char *tptr;
 double wait;
 
+stop_cpu = 0;
+signal (SIGINT, int_handler);
 while (*cptr) {
     wait = strtod (cptr, &tptr);
     switch (*tptr) {
@@ -3988,15 +3991,18 @@ while (*cptr) {
             wait *= (24.0*60.0*60.0);
             break;
         default:
+            signal (SIGINT, SIG_DFL);                               /* cancel WRU */
             return sim_messagef (SCPE_ARG, "Invalid Sleep unit '%c'\n", *cptr);
         }
     wait *= 1000.0;                             /* Convert to Milliseconds */
     cptr = tptr;
-    while (wait > 1000.0)
+    while ((wait > 1000.0) && (!stop_cpu))
         wait -= sim_os_ms_sleep (1000);
-    if (wait > 0.0)
+    if ((wait > 0.0) && (!stop_cpu))
         sim_os_ms_sleep ((unsigned)wait);
     }
+signal (SIGINT, SIG_DFL);                               /* cancel WRU */
+stop_cpu = 0;
 return SCPE_OK;
 }