Yes. This is common when getting tired kids ready for bed, and as a mom, it is something I did myself many times. Kids cotton shirts are not much different from PJ tops. So I myself have left on a shirt while putting PJ bottoms on my child. Lots of moms do this, it's not unusual.
Here's my pre-meltdown scenario for PR getting her 6-year old to bed that night. 1. arrive home from the White's, after making several stops to deliver presents. The Rs will be away for 10 days, so Christmas night deliveries are needed.
2. Everyone is tired, but PR is especially stressed, having had a busy Christmas season, with getting her house ready for the Colorado Christmas House Tour AND a big party on the 23rd. Add this to having to prepare for TWO trips beginning the day afer Christmas, one of which she didn't want to make, the stress of meeting stepdaughter Melinda's fiance for the first time, and the fact that PR was a last-minute, messy kinda person.
3. Add some alcohol and cranky kids to the mix. Arrive home, get JBR ready for bed. Though she likely fell asleep in the car, she woke up when they got home, and because of the excitement of the holiday, did not want to go to bed. She is hungry and wants to stay up because BR is staying up. So PR leaves her white Gap top on (those Gap kids shirts are soft- a child can comfortably sleep in them) puts the thermal long johns on her, and fixes JBR's hair in the ususal bedtime hairstyle of a ponytail at the nape of her neck. Because it is late and PR has a ton of things to do that night, she does not bother to remove the topknot ponytail and brush her long hair out. She simply leaves it as is and pulls the long hair into second ponytail.
4. JR and BR go to bed. By midnight, PR is still up. PR tries to get JBR to go to the bathroom so there will be no accident that night. They have a very early start that night.
5. JBR refuses to cooperate and wets the bed. PR flies into a rage and, well- fill in the rest.
This is ONE of my RDI theories. This one is a PDI. I also have a JDI and a JARDI (with BR as an accessory).