To be awake and completely active.
Be wide awake.
When some nights you have problems falling asleep.
Have a sleepless night.
To move around the bed unable to fall a comfortable position to fall asleep.
Toss and turn.
To gradually start to fall asleep to the point you fall deeply asleep.
Drift off.
To begin sleeping, especially not intentionally.
Nod off.
Being in a state between sleeping and being awake.
Feel Drowsy.
To sleep for a brief moment in order to recharge energy.
Take a power nap.
A deep sleep, so strong that nothing can wake you up.
Sleep like a log.
To sleep well and deeply.
Be fast asleep / Be sound asleep
I tell my mother to wake me up ___ I don't hear my alarm.
(Just) in case.
___ nobody disturbs my sleep, I wake up in a good mood.
As long as
The kids played amazingly ___ they couldn't sleep all night.
Considering that
