Sleep, sessions and bookmarks
A sleeping entry is a saved reference in TabCaptain, not a live Safari tab. Restoring it opens the saved address again. A session saves a collection of tabs, while a bookmark is useful for a long-term reference. None of these stores the unsaved contents of a form or a running web app.
Use the sleep list for a page you want to set aside and reopen later. Keep a live tab open if a call, upload, editor or other task still needs it. Save a session when you want to preserve a whole tab collection, and use bookmarks for references you expect to revisit over time.
Check page state first
Before sleeping any tab, save drafts, confirm uploads and downloads, and avoid interrupting calls, media or web apps doing active work. A site controls whether temporary state survives unloading or reload, so no tab manager can guarantee that unsaved web content will return.
TabCaptain lets you move selected tabs to its sleep list and return to them later. Search and domain grouping can help review candidates before you use it.
Safari's automatic close setting
Some Safari versions offer automatic tab closing after a day, a week or a month. Check the options in your installed version rather than assuming every Mac has the same setting. Automatic closing is a time-based rule; TabCaptain’s sleep list contains pages you deliberately chose to save and close.
- Active work: keep open.
- Finished page: close.
- Long-term reference: bookmark.
- Temporary workspace: session.
- Page to set aside and reopen later: use the sleep list.