sim won't sleep... DU

Hasn’t happened to me but have you tried resetsim? Sounds similar to that toddler bug we had a few months back.

I've tried that. Didn't do a thing :(

Happened to me once after GF, I restarted the game without saving and it fixed itself.

I'm struggling with this same issue. She's nearly dead on her feet. I finally had to cheat her energy up. Ugh.

A while ago, before installing DU, I had this problem, too.
Deleting the cache files and repairing the game via origin worked for me.

It happens in my game too. Nothing helps but restarting the game.

I restarted the game without saving, repaired it, and even deleted the cache files and it still didn't work): My sim still won't sleep all night... ):

Sadly, I'm having this issue. The young adult sim I've currently been playing with won't sleep. Her energy bar fills up to about half way, and she gets out of bed. Once it starts to go back down, and I try to get her to sleep more, she'll only sleep until the bar is halfway filled, and get right back up again. I've tried everything suggested in this post, and nothing seems to work to fix it, so I've had to resort to cheating to get her bar all the way up.