Elon Musk: 为了提高睡眠质量，将床头抬高约 3 英寸或 5 厘米，睡前 3 小时不要进食

原推：For improved quality of sleep, raise head of your bed by about 3” or 5cm and don’t eat 3 hours before bedtime
https://twitter.com/elonmusk/status/1546518224887496705