Who's sleeping in my bed?

[Venbury]

Any ideas on what might have caused... and how I fix my most recent problem?

After playing and upon exiting each house, I put my Sims to bed and save.  This is usually around 2 A.M.  The next time I go into this house to play, upon entering, all Sims are standing by their beds, fully energized with the covers still raised up as though their bodies are still in the bed.  
It doesn't seem to cause any problems as they are able to get back into bed and to relax, it just looks weird and I wonder if anyone knows how to fix this?

Thanks,
Ven

[MissDoh]

This usually happens when you start the game after you install a patch or a new mod or you just install a new ep, it resets the sims.

Very fiew mods does that but it can happen.

Nothing is wrong with your game btw, don't worry about it.