diff --git a/sleep sort.c b/sleep sort.c
new file mode 100644
index 000000000..e0217ca25
--- /dev/null
+++ b/sleep sort.c	
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <windows.h>
+#include <process.h>
+ 
+void routine(void *a)
+{
+    int n = *(int *) a; // typecasting from void to int
+ 
+    // Sleeping time is proportional to the number
+    // More precisely this thread sleep for 'n' milliseconds
+    Sleep(n);
+ 
+    // After the sleep, print the number
+    printf("%d ", n);
+
+void sleepSort(int arr[], int n)
+{
+    // An array of threads, one for each of the elements
+    // in the input array
+    HANDLE threads[n];
+ 
+    // Create the threads for each of the input array elements
+    for (int i = 0; i < n; i++)
+        threads[i] = (HANDLE)_beginthread(&routine, 0,  &arr[i]);
+ 
+    // Process these threads
+    WaitForMultipleObjects(n, threads, TRUE, INFINITE);
+    return;
+}
+ 
+// Driver program to test above functions
+int main()
+{
+    // Doesn't work for negative numbers
+    int arr[] = {34, 23, 122, 9};
+    int n = sizeof(arr) / sizeof(arr[0]);
+ 
+    sleepSort (arr, n);
+ 
+    return(0);
+}
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