diff --git a/vfs/os_linux.go b/vfs/os_linux.go
index 11e683a..7bb78c0 100644
--- a/vfs/os_linux.go
+++ b/vfs/os_linux.go
@@ -56,7 +56,7 @@ func osLock(file *os.File, typ int16, start, len int64, timeout time.Duration, d
 			if timeout < time.Since(before) {
 				break
 			}
-			osSleep(time.Duration(rand.Int63n(int64(time.Millisecond))))
+			time.Sleep(time.Duration(rand.Int63n(int64(time.Millisecond))))
 		}
 	}
 	return osLockErrorCode(err, def)
diff --git a/vfs/os_std_sleep.go b/vfs/os_std_sleep.go
deleted file mode 100644
index c6bc407..0000000
--- a/vfs/os_std_sleep.go
+++ /dev/null
@@ -1,9 +0,0 @@
-//go:build !windows || sqlite3_nosys
-
-package vfs
-
-import "time"
-
-func osSleep(d time.Duration) {
-	time.Sleep(d)
-}
diff --git a/vfs/os_windows.go b/vfs/os_windows.go
index 5c68754..83b952b 100644
--- a/vfs/os_windows.go
+++ b/vfs/os_windows.go
@@ -136,7 +136,7 @@ func osLock(file *os.File, flags, start, len uint32, timeout time.Duration, def
 			if timeout < time.Since(before) {
 				break
 			}
-			osSleep(time.Duration(rand.Int63n(int64(time.Millisecond))))
+			time.Sleep(time.Duration(rand.Int63n(int64(time.Millisecond))))
 		}
 	}
 	return osLockErrorCode(err, def)
@@ -171,16 +171,3 @@ func osLockErrorCode(err error, def _ErrorCode) _ErrorCode {
 	}
 	return def
 }
-
-func osSleep(d time.Duration) {
-	if d > 0 {
-		period := max(1, d/(5*time.Millisecond))
-		if period < 16 {
-			windows.TimeBeginPeriod(uint32(period))
-		}
-		time.Sleep(d)
-		if period < 16 {
-			windows.TimeEndPeriod(uint32(period))
-		}
-	}
-}
diff --git a/vfs/vfs.go b/vfs/vfs.go
index 1887e9f..30904bb 100644
--- a/vfs/vfs.go
+++ b/vfs/vfs.go
@@ -83,7 +83,7 @@ func vfsRandomness(ctx context.Context, mod api.Module, pVfs uint32, nByte int32
 }
 
 func vfsSleep(ctx context.Context, mod api.Module, pVfs uint32, nMicro int32) _ErrorCode {
-	osSleep(time.Duration(nMicro) * time.Microsecond)
+	time.Sleep(time.Duration(nMicro) * time.Microsecond)
 	return _OK
 }