How to know if there is a space between words?


I want to translate びようすいみん for a manga but the problem is that I dont want to
use google translate or any other similar tools. I know how to pronounce it
(biyousuimin) but I dont know how to seperate the words. Any help?




> びようすいみん

It must be 「びよう」「すいみん」, which is written 美容{びよう} 睡眠{すいみん} .  
美容{びよう} means _beauty_ and 睡眠{すいみん} means _a sleep_.  
Then the びようすいみん means _a sleep good for your beauty_ or _the way of a sleep
good for your beauty_.

