diff --git a/dell/xps/13-7390/default.nix b/dell/xps/13-7390/default.nix
index 727ea5c..991e435 100644
--- a/dell/xps/13-7390/default.nix
+++ b/dell/xps/13-7390/default.nix
@@ -7,5 +7,7 @@
     ../../../common/pc/laptop/ssd
   ];
 
+  boot.kernelParams = [ "mem_sleep_default=deep" ];
+
   services.thermald.enable = true;
 }