This isn't the poem you;ve described but it's one that my mum gave me when I had my DS . It always brings a lump to my throat
Go to sleep, Mum
I won't stop breathing
suddenly in the night
Go to sleep,
I won't climb out of my cot and
tumble downstairs
Mum, I won't swallow
the pills the doctor gave you or
put hairpins in electric
sockets, just go to sleep
I won't cry
when you take me to school and leave me:
I'll be happy with other children
my own age.
Sleep, Mum, sleep.
I won't
fall in the pond, play with matches,
run under a lorry or even consider
sweets from strangers.
No, I won't
give you a lot of lip,
not like some.
I won't sniff glue,
Fail all my exams,
Get myself/
My girlfriend pregnant.
I'll work hard and get a steady/
really worthwhile job.
I promise, go to sleep.
I'll never forget
to drop in/phone/write
and if
I need any milk, I'll yell
-Lullaby by Rosemary Norman