We never had any problems to get DS (2.5 yo now) to go to sleep. We co-sleep - it's great - and for napp time we lie with him. But don't get me wrong, he is a very boisterous, active, disruptive adorable toddler.
For about a year now, we've even been able to lie with him for a bit and say:"I need to go back down now, good night..." and he's fine. (he still sleep in our room, DH woodworker has modified his toddler bed so it's his bed stuck to our and mattresses at same level. He sleeps through the night in his bed, occasionally he'll shift toward us... We can even get another member of family or good friend to put him to sleep.
All ideal until... well, he's still very tired at the end of the morning and needs his daytime napp shortly after lunch. He would sleep 2 hours if given a chance, but then will not be tired enough at bed time (8pm).
If he skip the napp, it's a disaster of tantrum and grumpiness for the rest of the afternoon (or occasionally he would fall asleep on the carpet amongst toys or on changing matt at 5pm until 9pm and be full of beans again !)
If we lift him after a shorter napp he's all grump as well...
I feel I can win ! We can't let him run around until 11pm because that is OUR time... for...euh... housework !
Help !
Cheers - Marion :-)