My wife goes to sleep around 11pm or so, usually, while I’m often up until 1am or even later (she’s up earlier than me, too). Late at night I usually catch up on email and snail mail, bop around on the Dope, and sometimes watch a movie or TV show that I know wouldn’t interest her.
The same thing we do every night…
try to take over the world! [/Brain]
supervenusfreak and I tend to have variable bedtimes…some nights I’m the tired one and some nights he is. I’m usually the one who goes to bed later. When I first moved in, I used to go to bed when he did, but it’s been almost six years and now I usually stay up reading the Dope, or playing WoW or Big Fish casual games. When I go to bed first, he stays up watching TV or movies.
We’re a recently minted couple (less than a year) and he has this thing about going to bed together. Most nights he’s sleepy before me… so I sit up and read. He swears up and down it doesn’t bother him.
Our sleep schedules are only about an hour off from each other, though.
My husband gets grouchy when I stay up past him. It also vexes the cat… he usually meows incessantly if one of us is in bed but not the other. Nonetheless, I am a die-hard insomniac so getting stuck on the internet posting and writing until 4am is not unsual for me. Once my husband’s out, no force on earth, however great, will wake him. I, on the other hand, bolt upright gasping if my cat so much as shuffles a paper.
These.
Or just puttering around on the internet on the laptop in bed with her. catching up on the Dope and such.
I’m usually the first one asleep on weekdays, although my husband sometimes crashes in our son’s bed with him or naps at the same time he does on weekends. If by some trick of fate I do happen to be awake when they’re both asleep, I usually watch bad chick flicks on TV, write or fool around on the Dope.
Usually either play on the computer, lie in bed reading or watch TV.
My friend sometimes…um…indulges in Internet porn. His wife caught him once but was like “whatever…just as long as you aren’t trying to have sex with me five times a night.”
Lie in bed watching TV, go work on the computer, or (potential tmi behind spoiler)in that rare instance when I’m not recovering from just had funskies, wake her up for funskies.
We keep similar schedules and most of the time we go to bed together. If I’m staying up late alone it’s probably because I’m close to the end of a book and I want to finish it. Usually if he stays up, or if he gets back up once we’ve gone to bed, he’s on the internet.
I don’t think it’s very noisy at all, but he doesn’t like any noise or light in the room he’s sleeping in. Maybe it’s a reaction to living near a flight line for many years in the Air Force. He also hates the fact that I get up and down several times, as I find it hard to sleep more than a couple of hours at a time, because pain wakes me up. Each time I do get up or get into bed, I have to turn the CPAP on or off, and get adjusted, which usually wakes him up.
He used to complain about my snoring, too. I don’t know if I snore any longer with the CPAP, I’ll have to ask him.
I tell you though, even though the CPAP is annoying to put on, and uncomfortable, it really does improve my sleeping. I get wonderful restful sleep, and I wake up very well, without the groggy stage I used to have to stumble through.
Recently there are a very few times I am up later than my SO… In fact, hardly ever these days. Though in past relationships I would always catch up on some work I had been meaning to do, or some reading.
Sometimes I would just do things for myself that I didn’t have time for during the day, such as: reading cosmopolitan, painting my nails, face masks, etc… Things I know he wouldn’t be too keen on seeing.
Other times I would just plan something for him, like breakfast in the morning, or something he had been wanting to do… Kept things fun, and occupied my time.
This, but only during the week. I go to bed at 11 or 12 while my SO stays up until 2 or 3: he watches the History Channel or MLB TV or Discovery while surfing the 'net. We recently got FiOS and a couple of movie packages, so now sometimes he’ll watch movies, too. We’ve only been living together for about 10 months, and at first I – like Sattua’s SO – had a “thing” about going to bed together, but after a serious talk or two about it I realized that it wasn’t going to happen. (I think we started talking about some kind of compromise last fall, but then we got a puppy and any sleep plans became OBE. :))
On Friday and Saturday nights we go out to “our” bar, and go to bed together when we get home.
On Saturdays and Sundays he sleeps until 4 or 5pm, while I’m usually up by 10am. I lived alone for 14 years before moving in with him, so I appreciate the “quality alone time.” I do all sorts of stuff while he’s asleep: watch TV, read, play with the dogs, run errands, clean, surf the 'net, pay bills, etc.
Very common occurence here - my cicadian rythms are all banged up, so we spend lots of time “out of synch” - she keeps normal hours, my waking hours slowly but surely creep around the clock.
Anyway, I play/work/SDMB on the computer (with the sound turned low or with headphones), and clap loudly when she goes into heavy duty snoring mode (we live in a one room appartment. She snores like… I really can’t think of an adequate comparison. Steam locomotives and/or chainsaws would be involved.). It’s the only thing that half wakes her up. She then goes “wstfgl ?”, rolls to her side and immediately falls back to sleep. And I get another half hour of peace and quiet, till the next train revvs up 
If we’re at my place I’ll watch TV (from the bed) or post here. If we’re at her place I’ll usually grab a book off her shelf and read. The last few nights I’ve been reviewing Lolita. There’s something appropriate about reading that book in bed while your significant other sleeps.
Is a cicadian rhythm one where you sleep for 17 years and then stay awake for 3 months? 
I play with my Wii.
I watch (recorded) shows that he doesn’t like. Or I’ll read.
One night I was reading something and there was a description of a male character that reminded me of my SO. It got me to thinking wonderful thoughts about him. How sweet and funny he is and stuff.
Then an enormous FART from the bedroom, snapped me out of it.
Nah, they’re the ones that make you go “crrr, crrr, crrr” by rubbing your leg hair all summer 