Trouble sleeping... Suggestions anyone???

Jae
For the last 2-3 weeks I've been going to bed, taking about he and a half to get to sleep, then waking up again for about 3 hours or so. I'm now getting to the stage in exhausted all the time and it's starting to affect my relationship with my SO. I've never been a great sleeper but it seems to have gotten worse. I'm trying to manage my stress levels (extra work responsibilities, house renovations and an increasingly difficult partner who is in no way supportive). Every sound my SO naked (heavy another and teeth grinder) wakes me up again. Can I smother him with a pillow?? At least I might sleep. PS baths don't work, warm milk makes me nauseous and I stop using tech gear at least an hour before bed. HELP LADIES!!!!