Start with a child at roughly two years of age. Give him a late nap the night before. By late I mean that he wakes up at 8:45pm. You know around the time that you would typically start bedtime. From there you will have to anticipate that he will be up late. However as you didn't nap, you will fall asleep at midnight with him sitting next to you in bed. Proceed to wake up at 2am, that's TWO'O'CLOCK in the morning for those of you who weren't paying attention, and find your two year old still up and playing on your cell phone. No biggie. Of course at this point you will take the phone away and insist that he go to sleep.
Plan on your already late sleeping child, sleeping pretty late. Decide to just let him. He needs his sleep and you can just hang out with friends.
Change of plans. Your two year old wakes up at 9am. After just seven hours of sleep. This is earlier than he wakes up most mornings when he goes to bed on time. You'll probably get a little bit of a bad feeling about the playdate at this point, but you will decide to go ahead anyways. What's the worst that could happen?
You really shouldn't have asked yourself that question. Let me go ahead and paint you a little picture of your playdate to come. There will be hitting. There will even be kicking. Toys will be thrown. Tantrums be happen. Sharing will not. Timeouts will be plentiful. Like half the playdate will be spent in timeouts. And this is just your child.
It will be horrible. Trust me, I know. Luckily for you, your friends will understand and act like it really wasn't as bad as it was. And it was BAD!
Later you will wonder how a child who looks this adorable and innocent...
Could behave so horribly. Fortunately you will love him in spite of it. Most of the time.