diff --git a/runtime/syntax/generator/gen_syntax_vim.vim b/runtime/syntax/generator/gen_syntax_vim.vim
index deb490f..8b76775 100644
--- a/runtime/syntax/generator/gen_syntax_vim.vim
+++ b/runtime/syntax/generator/gen_syntax_vim.vim
@@ -274,21 +274,48 @@
 	let ab_prefix   = '^[ci]\?'
 	let menu_prefix = '^\%([acinostvx]\?\|tl\)'
 	let map_prefix  = '^[acilnostvx]\?'
-	let exclude_list = [
-	\	'map', 'mapclear',
-	\	'substitute', 'smagic', 'snomagic',
-	\	'setlocal', 'setglobal', 'set', 'var',
-	\	'autocmd', 'augroup', 'doautocmd', 'doautoall',
-	\	'echo', 'echoconsole', 'echoerr', 'echohl', 'echomsg', 'echon', 'echowindow',
-	\	'execute',
-	\ 'function', 'endfunction', 'def', 'enddef',
-	\	'behave', 'augroup', 'normal', 'syntax',
-	\	'append', 'insert',
-	\	'Next', 'Print', 'X',
-	\	'new', 'popup',
-	\	'vim9script',
-	\	'catch', 'throw',
-	\ ]
+	let exclude_list =<< trim EOL
+		Next
+		Print
+		X
+		append
+		augroup
+		augroup
+		autocmd
+		behave
+		catch
+		def
+		doautoall
+		doautocmd
+		echo
+		echoconsole
+		echoerr
+		echohl
+		echomsg
+		echon
+		echowindow
+		enddef
+		endfunction
+		execute
+		function
+		insert
+		map
+		mapclear
+		new
+		normal
+		popup
+		set
+		setglobal
+		setlocal
+		sleep
+		smagic
+		snomagic
+		substitute
+		syntax
+		throw
+		var
+		vim9script
+	EOL
 	" Required for original behavior
 	" \	'global', 'vglobal'
 
diff --git a/runtime/syntax/generator/vim.vim.base b/runtime/syntax/generator/vim.vim.base
index 743c0cd..b1d963e 100644
--- a/runtime/syntax/generator/vim.vim.base
+++ b/runtime/syntax/generator/vim.vim.base
@@ -3,7 +3,7 @@
 " Maintainer:	   Hirohito Higashi <h.east.727 ATMARK gmail.com>
 "	   Doug Kearns <dougkearns@gmail.com>
 " URL:	   https://github.com/vim-jp/syntax-vim-ex
-" Last Change:	   2024 Jun 13
+" Last Change:	   2024 Jun 14
 " Former Maintainer: Charles E. Campbell
 
 " DO NOT CHANGE DIRECTLY.
@@ -175,7 +175,7 @@
 syn case match
 
 " All vimCommands are contained by vimIsCommand. {{{2
-syn cluster vimCmdList	contains=vimAbb,vimAddress,vimAutoCmd,vimAugroup,vimBehave,vimCatch,vimDef,@vimEcho,vimEnddef,vimEndfunction,vimExecute,vimIsCommand,vimExtCmd,vimFor,vimFunction,vimGlobal,vimHighlight,vimLet,vimMap,vimMark,vimNotFunc,vimNorm,vimSet,vimSyntax,vimThrow,vimUnlet,vimUnmap,vimUserCmd,vimMenu,vimMenutranslate
+syn cluster vimCmdList	contains=vimAbb,vimAddress,vimAutoCmd,vimAugroup,vimBehave,vimCatch,vimDef,@vimEcho,vimEnddef,vimEndfunction,vimExecute,vimIsCommand,vimExtCmd,vimFor,vimFunction,vimGlobal,vimHighlight,vimLet,vimMap,vimMark,vimNotFunc,vimNorm,vimSet,vimSleep,vimSyntax,vimThrow,vimUnlet,vimUnmap,vimUserCmd,vimMenu,vimMenutranslate
 syn match vimCmdSep	"[:|]\+"	skipwhite nextgroup=@vimCmdList,vimSubst1
 syn match vimIsCommand	"\<\%(\h\w*\|[23]mat\%[ch]\)\>"	contains=vimCommand
 syn match vimVar	      contained	"\<\h[a-zA-Z0-9#_]*\>"
@@ -654,6 +654,12 @@
 syn match	vimNorm		"\<norm\%[al]!\=" skipwhite nextgroup=vimNormCmds
 syn match	vimNormCmds contained	".*$"
 
+" Sleep: {{{2
+" =====
+syn keyword	vimSleep		sl[eep]		skipwhite nextgroup=vimSleepBang,vimSleepArg
+syn match	vimSleepBang	contained	"\a\@1<=!"		skipwhite nextgroup=vimSleepArg
+syn match	vimSleepArg	contained	"\<\%(\d\+\)\=m\=\>"
+
 " Syntax: {{{2
 "=======
 syn match	vimGroupList	contained	"[^[:space:],]\+\%(\s*,\s*[^[:space:],]\+\)*" contains=vimGroupSpecial
@@ -1192,6 +1198,9 @@
  hi def link vimSetSep	Statement
  hi def link vimSetString	vimString
  hi def link vim9Vim9Script	vimCommand
+ hi def link vimSleep	vimCommand
+ hi def link vimSleepArg	Constant
+ hi def link vimSleepBang	vimBang
  hi def link vimSpecFile	Identifier
  hi def link vimSpecFileMod	vimSpecFile
  hi def link vimSpecial	Type