In mild cases of frequent waking some simple solutions can be tried. (rollercoaster.ie)
When your baby is learning how to do something (crawl, walk, talk) their breastfeeding can go into overdrive with even more frequent wake ups at night! (themilkmeg.com)
Even if you have a toddler that sleeps well in his crib, you can often expect some bedtime battles and more frequent wake ups after you make the switch to a toddler bed. (verywellfamily.com)