There is so many little things that lack in this game but all the missing interactions and animations that involves beds is probably the one that frustrates me the most.
Like this thread points out, no cuddling. It's like couples are sleeping in separate beds pushed together. Sims don't move around while sleeping, they stay in the same position all night. When they wake up, they immediately jump out of bed, they no longer sit and yawn and rub their eyes, not even lazy sims. Then they magically make the bed. This really irks me because there's already not much to clean around the house and now we can't even make beds or be a messy and lazy sim and leave the bed unmade. Also, kids can't jump on beds and there isn't a relax option anymore, even though the animation is already there.
http://i61.tinypic.com/52ewxd.png