diff --git a/cowrie/commands/sleep.py b/cowrie/commands/sleep.py
index c05380f..4d55905 100644
--- a/cowrie/commands/sleep.py
+++ b/cowrie/commands/sleep.py
@@ -1,3 +1,9 @@
+# Copyright (c) 2015 Michel Oosterhof <michel@oosterhof.net>
+# All rights reserved.
+
+"""
+This module contains the sleep command
+"""
 
 from twisted.internet import reactor
 
@@ -11,9 +17,14 @@ class command_sleep(HoneyPotCommand):
     """
 
     def done(self):
+        """
+        """
         self.exit()
 
+
     def start(self):
+        """
+        """
         if len(self.args) == 1:
             _time = int( self.args[0] )
             self.scheduled = reactor.callLater(_time, self.done)