diff --git a/module2/exo4/sleep.txt b/module2/exo4/sleep.txt
new file mode 100644
index 0000000000000000000000000000000000000000..71a384e3cba89b8f27ad49360d67367f8069a4ae
--- /dev/null
+++ b/module2/exo4/sleep.txt
@@ -0,0 +1,20 @@
+date hours_sleep
+
+2023/01/27 7
+2023/01/30 9
+2023/02/01 6.5
+2023/02/02 7
+2023/02/03 8
+2023/02/07 8.5
+2023/02/08 7
+2023/02/09 6
+2023/02/10 6.5
+2023/02/13 7
+2023/02/15 9
+2023/02/16 6
+2023/02/21 7
+2023/02/24 7.5
+2023/02/27 7
+2023/02/28 8
+2023/03/01 8
+2023/03/02 6.5
\ No newline at end of file