trouble sleeping

Don't know why or how but we have a serious sleeping issue. It used to be that we would say goodnight, give hugs and kisses, and the kids were off to slumberland in no time (and slept til at least 7am) For the last week Dylan and Sophie have been refusing to go to bed and getting up at least 2 times during the night and then waking up at 5am. The next day is worse because they have had hardly any sleep and are super grumpy. Nap times aren't much better..they both get up and refuse to go back to bed. Darren and I have put up some baby gates at their doors so that when they get up they at least have to stay in their room...no such luck. Smarty pants Sophie figured out how to unlatch the gate and monkey Dylan just climbs over the gate. Once they break loose then they are off to the other ones room to wake them up. AHHHH!!! i feel like I'm going insane and don't really know what to do. I'm hoping that this phase doesn't last long!! I snapped these pictures of the baby monitor that is outside in the hall. Dylan climbed over the gate with his Buzz lightyear and started posing him for the camera

Yup there is Mr Buzz

What am I gonna do with this cute face!!!

After this of course he ran over to Sophie's room and woke her up. SHEESH!!!