Would you like anything else?
He is afraid to go out at night.
严格意义上讲,anything else 或者something else 都可以
在期待对方肯定回答时用something.但该句只是普通询问（太常用了,以至于很少有人用到something）,所以用anything就可以了.（中国的英语教育只给了一个泛泛的规定,一般疑问句提问要用anything,但是并没有说清楚为什么）
其它例子：
Did you decide to order something else?
您想好还要点什么了吗?
It's too big for me. Could you recommend something else?
有点太大了.你能推荐其它的吗?
晚上 at night, 如果是3个括号：in the nighttime, in the evening