在英语中，午睡通常被称为 "nap"，来自于中世纪拉丁语 "happen"，意为 "to doze"，也就是打盹儿。

例如：

I'm going to take a nap. (我要打个盹儿。)
It's a good idea to have a nap in the afternoon. (下午打个盹儿是个好主意。)
I feel much more refreshed after my nap. (我打完盹儿之后感觉好多了。)

另外，午睡还可以用 "siesta" 表示，这个词来自于西班牙语，意思是 "a short sleep taken during the day, especially in the afternoon"，也就是下午小憩。例如：

Many people in Spain and Latin America have a siesta in the afternoon. (西班牙和拉丁美洲的许多人下午都会小憩一会儿。)
It's common to see stores and businesses closed during the siesta hours. (在小憩时间，看到商店和企业关闭是很常见的。)