diff --git a/raknet/RakSleep.cpp b/raknet/RakSleep.cpp
new file mode 100644
index 0000000..e4b843f
--- /dev/null
+++ b/raknet/RakSleep.cpp
@@ -0,0 +1,18 @@
+#if defined(_COMPATIBILITY_1)
+#include "Compatibility1Includes.h"
+#elif defined(_WIN32)
+#include <windows.h> // Sleep
+#elif defined(_COMPATIBILITY_2)
+#include "Compatibility2Includes.h"
+#else
+#include <unistd.h> // usleep
+#endif
+
+void RakSleep(unsigned int ms)
+{
+#ifdef _WIN32
+	Sleep(ms);
+#else
+	usleep(ms * 1000);
+#endif
+}
diff --git a/raknet/RakSleep.h b/raknet/RakSleep.h
new file mode 100644
index 0000000..8bbfc37
--- /dev/null
+++ b/raknet/RakSleep.h
@@ -0,0 +1,6 @@
+#ifndef __RAK_SLEEP_H
+#define __RAK_SLEEP_H
+
+void RakSleep(unsigned int ms);
+
+#endif