I'm in bed - You're saying you're going to sleep now and you're not going

You're saying you're going to sleep now and you're not going to let anyone bother you.

'I'm in bed', I'm going to sleep and you can't stop me.

'I'm in bed', I'm done talking, I'm done being nice, I'm done with you.

'I'm in bed', I'm going to sleep and if you wake me up, I'll kill you.