I have mean sims! What did I do?

[J. M. Pescado]

Just deny them autonomous access to the bed. They shouldn't be messing with it anyway, otherwise their schedule gets messed up when they arbitrarily decide to sleep halfway through the day, instead of at a precise, mathematically determined time.

[ZephyrZodiac]

I've never had sims2 sims other than kids arbitrarily decide to sleep in a bed, just relax on it - quite often not even their own!  I think I might have to go with your suggestion, JM, although locking kids doors to keep parents out does help - they only have their own to relax on then, and I know where to find them!  And when I find my sims doing things like that, they get to watch TV (the cookery channel)l or clean the toilet, or play chess........whichever is going to upset them most, and I don't use macrotastics then, because they don't complain when you use that!