diff --git a/includes/FshCommands/SLEEP.asm b/includes/FshCommands/SLEEP.asm
new file mode 100644
index 0000000..074d6eb
--- /dev/null
+++ b/includes/FshCommands/SLEEP.asm
@@ -0,0 +1,14 @@
+fshcmdSLEEP:  .db "SLEEP", 0
+fshcmdSLEEPo: .db $16
+fshcmdSLEEPu: .db "Puts the calculator into sleep mode (APD)", 0
+fshcmdSLEEPf:
+ di
+  call _EnableAPD
+  ld a,1
+  ld hl,apdSubTimer
+  ld (hl),a
+  inc hl 
+  ld (hl),a
+  set apdRunning,(iy+apdFlags)
+ ei
+ jp Fin