Our 5-month-old wakes up four to six times a night. Sometimes he's not even hungry -- he just wants us to comfort him. How can we get him to sleep through the night?

he doesn't know how to connect his sleep, that's why he's waking up. I had the same issue with my 4MO and plucked up the courage to sleep train him. he learnt the skill of self soothing in about 1-2 days and slept through the night independently thereafter.