I didn't register for the Deep Rest Reset in time. Can I still join?

Yes. Registration stays open through June 21, the last day of the challenge. If you register after June 8, your first day of the Challenge will automatically be set to start 24 hours after you sign up, and you'll receive all 14 days of content in sequential order from there. The hub stays open through August 5, so you'll have time to finish even if you start late.