Nikhilan energy, the East Side Center, he translated the Upanishads into very usable English translations. The second volume has the Mandukyo Penisha translation. In the appendix there is a section called waking and dream experience. There he takes up ten objections. Objections to equating, waking and dreaming. And replies to those objections from the non-dualist perspective.
Swami Sarvapriyananda teaches one of the shortest and most profound upanishads accompanied by Gaudapada's Karika. This lecture covers Mantra 5-6.