"Stay awake!"

Translation: Håll dig vaken!

[Patti309623]

kan man säger "håll mig vaken" as instructions to self?

[Arnauti]

Interesting question. I think I'd actually use the infinitive instead for that – if I wrote a list of things I needed to do, for instance, I'd say hålla mig vaken. Somehow håll mig vaken sounds like a command to someone else.

[Patti309623]

thank you. you are the best!

[Snowdayk]

For me, I would say "Håll dig vaken" and just talk to myself in 2nd person.

[Tony979198]

How would you say: Stay alert!

[devalanteriel]

The most idiomatic phrase is probably Var på din vakt!

Literally "be at your guard!"

[Tony979198]

Thanks! That's another good phrase to know!