I hate the words I'm tired.
I use them as much as the next person, but they don't just mean I have a lack of sleep.
It can mean I'm tired of waking up in the morning.
I'm tired of the same old days.
I'm tired of the people I'm around and the job that I do and the place that I live.
If you truly feel a lack of sleep, I'd prefer the word sleepy.
Sleepy means you woke up with dreams for the day, but wished they would keep you in bed for a touch longer.
Sleepy means soft and joyful, exciting.
It means you still want excitement in your life, a little ping of laughter and spirit.