Please tell me it is some crappy feature gamesas made. Because it is very disappointing.
How am i going to get the lovers comfort if my follower(and marriage person) cannot sleep for more than 1 second?

I enter follower command mode and told her to sleep. She did lie down, but when i exit the command mode to sleep, she gets up again...

The only other mod that makes follower actually sleep is UFO but that is extremely buggy and the other mod amazing-follower-tweaks clashes with some animation mods. So i had to rely on the default skyrim command system which tend to annoy me.

So............how can i make her sleep?

You don't need to sleep in the same bed as your spouse (read: spouse, not generic follower) to get Lover's Comfort. You just need to sleep in a bed in the same building. They can be up and about, and you'll still get it.

what about wanted immersion? I always wanted a bit of immersion other than the lovers comfort. What if the follower isnt a spouse?

If the follower isn't a spouse, you don't get the effect.

As for immersion - just pretend they get in bed after you. Actually, does anybody else know if spouses, or followers sitting around, sleep in beds?

it's a problem I've had too... kinda kills the role-play for me a bit.

sigh i guess gamesas failed on this one. Good thing the command 'Wait here' works. I shall just pretend that my follower is sleeping on the bed right next to me so that the next day the follower(e.g. lydia) doesnt bump into traps and block the doorways again.

If the follower is not a spouse. Then they will never sleep.

EDIT : I mean to say, if an NPC is an active follower, they will never sleep. Even others will only sleep if their AI has it scheduled. Like Fendal, for ex...

EDIT 2 : Unless you are married and the NPC is an inactive follower and is in the player home. Like Janessa (Jenassa ?), for ex.

unfortunate.