Caroline,
We put our DD in her big bed at her 18-month and she loved it! Since she loved it so much, putting her to bed became the easiest thing to do every night. We just put her to bed, tuck her in, kiss her good night and say see her in the morning and then leave. She finds her best sleeping position (like a little dog) and sleeps right away. She has started to sleep alone in her own room since she was 4 months old and was never a fussing child anyways.
About potty training, my cousin's first daughter was potty trained before 2 years b'day, I believe. But the second one was not until almost 5! Everyone has his/her own pace and I know that you have already known this. I read online and the key is that the kid has to be interested in using potty and we cannot force them to do anything that they don’t like to do.
Having said above, I do want to summarize what we did for DD here.
1) Started to put DD on potty whenever we thought it’s time for a diaper change since she was 6 weeks! Yes, we did that at that early!
2) EVERYONE said I was crazy, but after seeing our DD peed and pooped most of the time I put her on the potty, they all shut up and did the same.
3) Take toilet adapter everywhere we go since she was 4 month old. She started to have a pooping pattern at that age, once/day in the morning, highly predictable. She RARELY had any soiled diapers since then except when she was sick of diarrhea at 5 month old.
4) She went to daycare at 5.5 month old, but she kept good habit of not pooping in her diapers. However, I had to admit she was not poop-free at daycare, we saw from her report that our effort of keeping her clean was slowly gone.
5) However, she VERY RARELY had any dirty diapers at home (I wanted to say NEVER, but just to be cautious, my memory could be wrong!) since she was 7 month old (see pics below.) As we kept the habit of putting her on potty chair or toilet and exclaimed each time when she did pee or poop, which was more than 95% of time.
6) At 13 month, we took her out of daycare for 15 days (traveling abroad.) During this time we kept her diaper free and bottomless whenever possible. When we got her back to daycare, she was able to keep the habit of being clean – rarely had dirty diapers at daycare anymore.
7) At 14~15 month, she was able to take the insert of her potty to dump the content to big toilet herself and would not like it if we tried to help.
7) By 16 month, she was able to take us to her potty while she was butt naked playing with sprinklers in the yard!

By 18 month, she was able to hold her pee and rarely had wet diapers at daycare.
9) At 20 month, daycare teachers suggested us directly go to regular panties. It’s been this way for whole 2 weeks now. She had accidents occasionally, but not daily and her accidents are controlled, meaning she does not finish the whole course of pee, just little bit wet by the time she tells the teacher. However, she always poops in the potty.
As you can see, we consider this whole potty training process easy and smooth. You can say we trained ourselves, not her. I agree, but I don’t see any difficulties for us to put her on a potty chair before we put her on a changing table. Sure, it took a little bit longer for a diaper change, yet none of us mind. The good thing to start putting her on the potty early is that she would get the habit of using potty before she knew to refuse to sit on it. It was part of the routine to her very early on! Another good thing is that she is able to clean after herself as soon as she walks!
That is it, no trick at all.
According to books and articles that I read and teachers at daycare that I talked to, the best and most efficient way is to put on regular panties when they show any signs of readiness to use potty. Remind your kid each hour or so to go. If they do, great, exclaim, praise. If not, not to push, let them get wet so they get feedback and put them on the potty even though you just find out they wet themselves. After few days, they should get the idea.
I am going to do the night training this way when she will be 24 months:
1) No diaper at night.
2) Take her to the potty before our bedtime (11 pm or so), 2~3 hours after her bed time (9 pm.)
3) Take her to potty at 4 am or so, as I will be doing the night feedings to our newborn anyways.
4) Eliminate the 4 am potty after 2 weeks.
5) If she wet the bed in the middle of the night, let her sleep in her wet bed, unless she fusses about it badly.
Will report how this goes later.
We are guessing that our second child will give us much harder time. My DH never fails to tell me how exhausting it could be to raise a son. Whenever he sees a boy jumping and running everywhere and the parents chasing after the kid, he would say “see that’s our son!” I am tired just to think about it! Can’t be that lucky every time, I know.
Sorry for this long post. I am waiting for my paper to get back from preliminary reviews at work, so I had some time to do this. It won’t be this long in the future, I promise.
