We fell into cosleeping due to convenience.
However DD is now three, and can't get herself to sleep at all.
We'll read and cuddle her to sleep, then four hours later she'll wake up crying for one of us! One of us will go in and snuggle with her. She'll instantly fall back asleep. But if we leave again, a few hours later (at the end of each sleep cycle I assume?) she'll wake again, screaming for company. EVERY NIGHT. She has never slept through without someone in bed with her.
HELLPPPPP!!!!!