diff --git a/backend/routers/rest_days.py b/backend/routers/rest_days.py
index 3fef4cd..490de6a 100644
--- a/backend/routers/rest_days.py
+++ b/backend/routers/rest_days.py
@@ -93,15 +93,11 @@ def create_rest_day(
     with get_db() as conn:
         cur = get_cursor(conn)
 
-        # Upsert by (profile_id, date)
+        # Insert (multiple entries per date allowed)
         cur.execute(
             """
             INSERT INTO rest_days (profile_id, date, rest_config, note, created_at)
             VALUES (%s, %s, %s, %s, CURRENT_TIMESTAMP)
-            ON CONFLICT (profile_id, date)
-            DO UPDATE SET
-                rest_config = EXCLUDED.rest_config,
-                note = EXCLUDED.note
             RETURNING id, profile_id, date, rest_config, note, created_at
             """,
             (pid, data.date, Json(config_dict), data.note)