Sleep? What's that?

The sleep struggles continue. Apparently there is something referred to as "4 month sleep regression". I am not sure if this is in addition to or a part of the week 19 Wonder Week. Basically Tyler has not been able to sleep longer than 2 hours at a time. Sometimes he only goes 45 mins. Then it takes 20 mins or so to get him back to sleep. It's like he's taking naps at night instead of actually sleeping. It's been rough. Luckily he's been pretty happy during the day. He's reaching and grabbing for things constantly. 

Another frustrating aspect of this is that once this phase is over he's probably going to start teething and again wont be sleeping well. =(