A not so typical start

The day started fairly typically. Sometime between 2am & 5am, Lisa woke up crying and crawled into our bed. Not long after, Maggie did the same.
Not typical was waking up to see Maggie cheerfully slapping Lisa on the head; Maggie kicking Lisa down the bed. Incredibly, Lisa slept through this barrage of abuse, subconsciously wriggling down the mattress to escape.
Of course, neither sister admitted to remembering any of this in the morning.
I hope this doesn't become a trend.