宵夜的英语是midnight snack。
midnight的意思是半夜。
snack的意思是零食，snack的例句：
1、There are all kinds of Beijing snack. They are really delicious.
北京还有各种各样的小吃，他们真的很好吃
2、This is analogous to packing a healthy snack in the car as a backup
