Ds1, we put into a single bed at 2 1/2. Was getting way to big for the cot
Did you go toddler bed or single bed?
Single bed

Did it make bed time easier or harder?
He slept like poopsydoo anyways so it made no difference

Do they get out of bed if they stir at night?
for a bout 2 weeks he was up and out alot but we kept putting back and eventually he just stayed there. We put a gate at the door so he couldn't leave his room over night

Ds2. Bed at 16 months. We were having baby number 3 and thought well may as well do it now
Did you go toddler bed or single bed?
Single bed
Did it make bed time easier or harder?
Great sleeper.. change made no difference to him

Do they get out of bed if they stir at night?
I swear not even once

Ds3. 21 months. was 10 weeks pg with DD so same thing as above.. Just decided to see how he would go
Did you go toddler bed or single bed?
Bought a toddler bed this time (best buy ever)
Did it make bed time easier or harder?
He also was a great sleeper so no issues here either

Do they get out of bed if they stir at night?
A little on and off for the first week but he soon got tired of it

DD *sigh* Been in a bed now for a few weeks (maybe a couple months now)
Did you go toddler bed or single bed?
Toddler bed
Did it make bed time easier or harder?
She originally went down really well but now she wakes at 9:45 everynight and gets into our bed.. She woke at 10 tonight and is now asleep crashed on a matress in the lounge. (nightly routine apparently

Do they get out of bed if they stir at night?
she never goes to bed awake. Is always held to go to sleep.. wakes continuously through the night unless we let her co sleep..

So as you can see all 4 of my kids have been different

What I did was do day sleeps on a bed to begin with to see how they would go and if that went well then I moved to the big bed