Big boy bed

Benjamin got moved to his big boy bed about a month ago.  He has done amazing!  Of course we have a couple nights here and there where we have to go put him back in it, but hey that is way better than we thought he would do.  The first few nights, he laid down and slept through the night with no problems whatsoever.  Naptime he does really well with also.
Lately, he has been wanting to go to sleep with his hat on.  It is a Thomas the train conductor hat that we keep with his train table.  He is so funny wearing it to sleep.
Also we have taught him that instead of coming to the door crying, he should knock instead.  It is actually quite amusing hearing his little knock in the mornings or after nap. 
Here is a picture of him going to bed tonight in his hat: