I can’t tell if his helmet saved his life or if he wasn’t wearing a helmet. The way he avoids directly saying a helmet saved his life in the video while pushing the importance of wearing one makes me believe he wasn’t wearing his at the time and came very close to making his last omelette.
Make sure you’re well hydrated (with water), eating healthy and regularly, getting regular exercise and have a good sleep schedule. If those are all solid, talk to your dentist about sleep apnea and if a sleep appliance might be right for you, as you may not be breathing well in your sleep.