diff --git a/machines/nix-book/configuration.nix b/machines/nix-book/configuration.nix
index 7a8c5f3..dd07c54 100644
--- a/machines/nix-book/configuration.nix
+++ b/machines/nix-book/configuration.nix
@@ -40,14 +40,15 @@
 
   boot.initrd.luks.devices."luks-b614167b-9045-4234-a441-ac6f60a96d81".device = "/dev/disk/by-uuid/b614167b-9045-4234-a441-ac6f60a96d81";
 
-  # S3 deep sleep broken on Alder Lake - use direct hibernate on lid close
   services.logind.settings.Login = {
-    HandleLidSwitch = "hibernate";
-    HandleLidSwitchExternalPower = "hibernate";
-    HandleLidSwitchDocked = "hibernate";
+    HandleLidSwitch = "suspend-then-hibernate";
     HandlePowerKey = "hibernate";
     HandlePowerKeyLongPress = "poweroff";
   };
+  systemd.sleep.extraConfig = ''
+    HibernateDelaySec=30m
+    SuspendState=mem
+  '';
 
   networking.hostName = "nix-book"; # Define your hostname.
   # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.