I'll sleep on the couch for a while before you wake me up.
I'll sleep on the couch for a while and when it's time to go to work/ get off work ,please wake me up.
you go to sleep.I‘ll give you a wake-up call.
It's cloudy seriously.It seems to rain soon,so you gou out with an umbrella.
这些是我自己翻译的,不是机器乱翻译的,应该没有什么语法错误.机器翻译的一般都是语法错误的