Partner is getting 2 hours of sleep a night max, what can we done?

My partner has always had terrible sleep, but the pregnancy has exacerbated it. She is sleeping maybe 2 hours a night. We have done everything we can sleep hygiene wise but it doesn't do anything. The doctor has said they aren't comfortable recommending anything to medically aid with sleep and said that low sleep shouldn't adversely affect the baby, but she didn't sound confident. What can we do to get her sleeping through the night? She's 7 weeks along