The Sandman

[xyroph]

At the end of the day
When the sun goes down
There is a hush of silence
Swept through the town

The first stanza seems like it could be cut down to two lines, it lacks substance.

The air weighs heavy
As heart do the same
Adults as well as children
Dare not speak his name

Why are their hearts heavy? It is like this every night? What sort of town is this?

Now is the time to turn in
Now is the time for sleep
Now is also the time
For the sandman to creep

Redundant declaration of sleep-time, lacking imagery and emotion. How will they sleep? Will they even try to sleep? Where does the sandman come from? Through the cracks in the floor? Under the door?

If he so chooses
He'll take you away
Or he'll show mercy
And you'll live another day

How does he choose? Does he take away bad people, or is he simply reckless and malevolent? Will he drag you kicking and screaming? Will he take you in your sleep? What do his hands feel like?

When you awaken I believe it would be "awake" or "have awoken"
You find sand in your eye 
"Thank God", you say  What do you feel? Do your shoulders sink with relief, or dread? it reads like a script here.
"He past me by" "passed"

I think this piece could really benefit from more clarity, description, and emotion. You're skimming over lines that could be described colorfully, leaving a framework of information that evokes no emotion. Maybe even describe the appearance of the sandman?

 I do like the ending though. I'd love to see a revision of this piece.