FI and I's current situation and discussion with his parents has got me wondering how popular/unpopular this arrangement is. FI and I sleep in separate bedrooms about 4 nights a week. I'm a light sleeper and he likes to get up at 5 am to work most week day mornings in order to be able to spend more time together in the evening. Back when we lived in our apartment and he was getting up at 5 am, it was waking me up and I was unable to fall back asleep and thus SUPER grumpy the rest of the day. It was causing resentment in our relationship so he started sleeping on the couch voluntarily so as not to disturb me (he's VERY good to me). Now that we have our house with three bedrooms, he sleeps in the guest room on nights that he wants to get up early. I sleep better, he can get his workout in (making him feel better) and our relationship has, in turn, noticeably improved. We still share the same bed about three nights a week, are still intimate and it works for us.
We were talking about this with his parents last weekend and they said they actually knew quite a few couples that did this and FMIL's parents had separate rooms their entire marriage. So my question - does anyone here sleep in a separate bedroom from their S/O (for those who live together)? Is it by choice or necessity and how has it affected your relationship? For us it works really well but I understand we're probably in the minority on this one!