I wore Pj's at night and normal clothes during the day. I found it helped me get into a routine getting up in Hospital, showering , getting dressed and eating a nice breakfast. I would shower in the morning when I got up and then just before I went to bed at night.
I don't normally wear Pj's at home. I just find that getting up in the night it's easier if I have them as they are comfortable. I treat myself for when I go into hopsital and have a nice Peter Alexander pair, they last for ages.
As I was BF I also wore a glamour mums top to sleep in until my milk came and then switched over to my booby bib when my milk came in. I would wear both of these like a top at night.
I have light fleece jacket that I wear when it's cold at night for when I get up to feed.