Please Make Sims Able To Sleep Together!

They won’t even sleep in the same bed when you assign each a side? I really thought I accidentally shared a bed with a uni roommate by doing that, but maybe I’m mistaken?

I did assign them sides on the bed. I made sure they both stayed on those sides, too. I sold and bought the bed again, as well. Nothing solved the problem.

I have this same issue. I find it ridiculous two friends cannot share a bed. For a game that claims it "simulates life" there are still way too many barriers that limit how closely you can imitate real life. Why do Sims need a romantic relationship to share a bed? Platonic friendship is important and there's nothing wrong with two friends sharing a double bed. Who didn't share a friend's bed at least once in their life? I know it's common to just sleep on the floor but in my experience that's only because there are more than two people involved. 

I have two Sims who are "true friends" sharing a small apartment together. There is plenty of room for one double bed. I tried having them share it, but they refuse despite being "true friends". Why is that, EA? Why do Sims need to be romantically involved to simply share a bed? Seems odd, to me.

What do you mean by it leaves room for more cultural beliefs? Limiting the game options isn't leaving room for anything. Two Sims being unable to share a bed unless they're romantically involved, married, or family is odd. Friends can share a bed in real life without there being anything romantic or sexual about it. It's definitely "by design" and that design is flawed. A game that "simulates life" shouldn't limit these things.

Agreed.

When I was a broke student I had a house party and ended up with six people sleeping the night in my queen size bed. It's a thing that happens irl, we should be able to do it in sims - both sleeping in the same bed without being romantically involved, and having more than the intended number sleeping in a bed. I'd expect a lower sleep quality if you have two in a single bed for the night or more than two in a double bed, but they should be able to sleep like that, and siblings or friends should be able to sleep in the same bed without anything else being assumed about it.

I'm not sure who marked this thread as "solved" since clearly there are players who are having issues with this.  Out of curiosity, I tested it in my game.  In contrast to the OP, I had three sets of siblings sleep in the same bed together with no problems; two brothers, two sisters, and a brother and sister household.  However, I also tested it with the "Bros" in Windenburg.   Sergio and Joaquin would not sleep in the same bed together.  Personally, I believe this is a very odd issue to have.  With all due respect, if players' cultural beliefs prevent them from having sims sleep in the same bed, then they won't do it anyway.  I don't believe this issue is "solved" and I encourage anyone wanting this to change to submit a new bug report or start a new thread.

Edit: One more thing ... upgrading the beds is not exactly a simple solution.  The sim has to acquire the handiness skill level to upgrade and also has to acquire or purchase the appropriate upgrade parts.

Agreed, definitely not solved.

Also, the cultural thing is absolute BS because I can flirt and woohoo and date a married Sim and even convince them to leave their spouse.

Pretty sure adultery is against a lot of cultural beliefs lol