diff --git a/packages/worker/src/index.ts b/packages/worker/src/index.ts
index f28c603..170bc7b 100644
--- a/packages/worker/src/index.ts
+++ b/packages/worker/src/index.ts
@@ -30,7 +30,7 @@ export type { Env } from "./worker-env.js";
 // Subclass the Cloudflare Sandbox so Codevil can keep active agent sessions
 // alive and persist stop diagnostics across abnormal socket closures.
 export class Sandbox<RuntimeEnv extends Env = Env> extends BaseSandbox<RuntimeEnv> {
-  override sleepAfter = "10m";
+  override sleepAfter = "20m";
   private readonly redactionSecrets: readonly string[];
 
   constructor(ctx: DurableObjectState<{}>, env: RuntimeEnv) {