Sleep deprivation and ant bites

Okay, should an almost two-year-old be waking up 5 times in the middle of the night?! What gives? Maybe he subconsciously knows we have been talking about having another baby and wants to remind us of what he was like as a newborn...or maybe it's the ant bites on his feet, poor baby. They have taken over his playground. I keep putting cortisone cream on but, of course, it wipes off as he rolls around in bed. I am sleep deprived and a disorganized mess right now.