In the Alps and before summit attempts in the Himalayas, you anyway never have long to sleep because you must use the early hours when the snow is hard.

• 在阿尔卑斯山中以及在喜马拉雅山的登顶尝试前,您无论如何不要指望能够睡好,因为您必须利用积雪变硬前的几小时攀登。