Can't go back to sleep

Can't go back to sleep after I went to the bathroom at around 3:00 am. I tried to lay down in bed but my mind is just wandering and could not fall asleep. So I decided to get up and heated Tyler's bottle of milk in case he wakes up. Then, sat on the chair and turned on hubby's computer and check my emails, facebook and just browsing the internet. It's past 5 am right now and Tyler just woke up and is now drinking his bottle. I just changed his diaper and he will just go back to sleep. Hopefully, I can get some more sleep before it get's daylight.