Why do we never remember the exact moment we fall asleep? Discover the fascinating science behind sleep transitions and how our brains process memories during this mysterious phase. Dive into the evolutionary aspects of sleep and how it varies across different species. Chapters: 00:00 You have never seen it 00:12 Three questions 00:24 There is no switch 00:36 Parts of you sleep first 00:48 A tide, not a door 01:00 Memories have to be bound 01:12 A window with no recording 01:24 The experiment 01:36 The same paragraph, four nights 01:48 I was not asleep 02:00 The falling blocks 02:12 They saw it without remembering it 02:24 Two systems, one offline 02:36 Older than brains 02:48 A jellyfish sleeps 03:00 Everything with neurons 03:12 Half a brain at a time 03:24 Sleeping in flight 03:36 Human sleep is short and dense 03:48 We came down from the trees 04:00 Somebody should be awake 04:12 Eighteen minutes 04:24 A rota nobody organised 04:36 Sleep used to have an interval 04:48 They reproduced it 05:00 We do not know why sleep exists 05:12 The competing accounts 05:24 Sleep as maintenance 05:36 The recorder is already off 05:48 It was never on the list 06:00 Nobody has ever seen it











