diff --git a/env.js b/env.js
index ce74afb..3cdec7f 100644
--- a/env.js
+++ b/env.js
@@ -11,6 +11,7 @@ module.exports = function() {
     .option('--changes-limit [value]', 'number of changes to batch')
     .option('--postgres-table [value]', 'name of the postgres table to replicate to')
     .option('-d, --daemon', 'continually replicate between CouchDB and PostgresSQL')
+    .option('-s, --sleep', 'Sleep interval in milliseconds between runs in daemon mode (default 10 * 60 * 60 * 1000 [ms] = 10 hrs)')
     .option('-v, --verbose', 'verbose logging')
     .action(function(source, target) {
       couchdbUrl = source;
@@ -44,7 +45,7 @@ module.exports = function() {
     couch2pgDocLimit: program['doc-limit'],
     couch2pgChangesLimit: program['changes-limit'],
     continuous: program.daemon,
-    sleepMs: 10 * 60 * 60 * 1000,
+    sleepMs: program['sleep'] || 10 * 60 * 60 * 1000,
     postgresTable: program['postgres-table'] || 'couchdb'
   };
 };