Actually I forget a lot of things, too. But I often force myself to float up and recap,
I go through the last 4-5 events in a more awake state, before sinking back and
continuing. Then I take notes afterwards. The biggest loss of memory is actually
when I float up, when I leave a sort of sleeping meditative state, that's where I
forget most, where I lose most of the details. I also keep my eyes closed while
I recap, so I stay close to the sleepy meditative state, while re-remembering
events.