L.H.
You're probably going to get so many different answers which is what I love about the option of co-sleeping.
My daughter is five and she's always gone to sleep in my bed first and then I climb into bed about three hours later. She likes to take nap in her own room - now rest time on the weekends - but I think its because she wants access to her books.
When she's sick or feeling particularly nervous when we travel, I will go to bed with her. There are very few nights that I do this because she's typically an excellent sleeper.
I think when people think co-sleeping, they think lax parenting, when in fact I'm fairly strict. I listen when she's scared or sick - but she doesn't play games because I don't have it - but I know when she needs me and I'm there. Bed time is same routine, pretty close to the same time every night, even on weekends (there are exceptions, of course.)
As with all of parenting, routines and how this came about evolved from babyhood, toddlerhood and now childhood. My daughter knows she has a choice between my bed or her bed and with our life style (single M., travelers) this works well for us.
Funny, I slept in a crib right away, loved my own bed and bedroom. I had trouble getting used to sleeping next to someone when I was married. My ex, on the other hand, loves sleeping with someone, slept with his M. until he was four and only feels comfortable sleeping when there is a house full of people. My daughter is the same way, so that it is just she and I in our little home, I can't imagine she will be leaving my bed any time soon.
To each, there own, right: )