I found the song 'I Am' by Jill Phillips pretty comforting and listened to it a few times before I was able to sleep last night.

oh gently lay your head upon my chest
and I will comfort you like a mother while you rest
the tide can change so fast, but I will stay
the same through past, the same in future, same today

I am constant; I am near
I am peace that shatters all your secret fears
I am holy; I am wise
I'm the only one who knows your heart's desires
your heart's desires

oh weary, tired and worn, let out your sighs
and drop that heavy load you hold 'cause Mine is light
I know you through and through; there's no need to hide
I want to show you love that is deep and high and wide

'cause I am constant; I am near
I am peace that shatters all your secret fears
I am holy; I am wise
I'm the only one who knows your heart's desires
your heart's desires

I am constant; I am near
I am peace that shatters all your secret fears
I am holy; I am wise
I'm the only one who knows your heart's desires
your heart's desires

oh gently lay your head upon my chest
and I will comfort you like a mother while you rest