Who needs sleep?

There is a BareNaked Ladies song "Who Needs Sleep" and the chorus goes:
Who needs sleep?
Well you're never gonna get it
Who needs sleep?
Tell me what's that for
Who needs sleep?
Be happy with what you're getting
There's a guy who's been awake
Since the Second World War

I have decided that as a mother you never get any sleep! First, you have the baby and hardly anyone gets to sleep the first month except the new baby. Then, they grow out of that stage and things start looking up... In my case, my daughter was an excellent little sleeper around age 2. My friends would be jealous because she'd sleep in so late in the mornings, and I could get some extra rest. However, she slowly grew out of that stage. She still slept good, but awoke earlier. Then, I went and had a second child! So, I started over... now, I would expect the baby needing to wake up in the night or early morning and eat. After all, he is a very good baby and goes to sleep around 8pm and usually sleeps until 5am. Not bad... However, I don't know what has happened to my 3 year old. She awakens in the night and calls out for me... she'll need a drink, have to potty, or just be plain grumpy. When I finally get her back off to sleep, the baby usually wakes up. Or, if Katie sleeps well the baby will have some crazy night and wake up a 2, 5, and 6!! So, I am in a continuous cycle of hopping back into my warm bed, getting all cozy, just about to drift off to dreamland when another round of crying from one of my children pulls me back to reality. If you have kids, I am sure you can relate. Thankfully, Katie heads off to bed around 7pm. However, she is usually bright eyed around 7:15am! Occasionally, it all works out into my favor and I get a good night's sleep. However, for now I am wondering if baby monitors are really helpful and if tonight could be one of those nights when everything works out and I could sleep. But then again, who needs sleep?