[pat-hubby]

I'm not sure if this is the proper place for this topic, but i would value some feedback on the question of my wife and myslef's bedtime routine.
My wife is 4 months pregnant and not working at the moment. Early in the pregnancy she was suffering from nausea and she theorized that it was worse in the mornings and so she started to stay up later at night and sleep in later in the mornings. She felt that in this way she was avoiding the time of day that the nausea was worst.
Typically, she will stay up until 3-4am and then sleep in until around 1pm-2pm the next day. She typically goes to bed with me and she will surf online on our laptop or chat with friends/family overseas (who are on a completely different time zone) on msn. I found this a little difficult because i prefer to have some intimate time to cuddle with her and go to sleep together and i find that i wake up multiple times while she is still awake so i'm not getting a good nights sleep. I get up around 7am for work and so i like to try to sleep by 11pm-12pm each day.
On the weekends, this routine tends to mean that we dont really get the chance to do a lot together during the day because by the time she is ready to go out and do anything its usually around 4pm.
Eventhough i found this routine hard at times, i have been trying to work with it to support her in the pregnancy. We are now at a point where the level of nausea has become better and i tried to talk to her about going to sleep earlier so we can sleep at the same times and put the intimacy back into our nighttime routine.
This issue is not at all about sex since we still make out on a regular basis each week and we are both satisfied with that side of our relationship. Its just about trying to make sure we both get a good nights sleep and keep the intimacy in our relationship.
My question is whether i should leave her to continue with her routine if thats what she feels is best for her in the pregnancy or if there really is some merit in us trying to conform our sleeping routine.
Any thoughts or advice are much appreciated.