You could wake up a little earlier too, not necessarily the same time as your husband but maybe an hour or two after. You may adjust after a few days.
Definitely play around with different hours until you find something more suitable like 8-9. I do thin 12 is excessive, I've done it a few times lately but it's mostly catch-up sleep after a few days of shitty sleep. How do you sleep, pretty well or do you wake up a lot? If you sleep straight through the night then cutting back a few hours may be energizing. If you wake up a lot then you may want to consider finding ways to get better sleep (start with better sleep hygiene, then consider supplements - do you take magnesium? this helps a bit) as you may be sleeping a lot because you're not achieving deep sleep (and therefore, though you sleep a lot you're not actually resting)
My mom only gets about 5-6 hours a night. I used to give her a lot of flack about this, asking her to sleep more, but she insists she never feels tired. Sometimes she'll take naps and stuff but she rarely sleeps in. My dad also wakes up around 4:30 for work, she's usually up an hour or so after him and gets her day started. Sometimes she doesn't go to sleep until after midnight. The reason in her case must be that she achieves deep sleep and gets all the rest she needs in literally half the time as you.
If I were you I would consider sleep hygiene methods, like not watching tv an hour before bed, being in a pretty dark room when sleeping (and generally exposing yourself to less light a few hours before bed, no computer, etc) drinking some chamomile tea. I would do that AND get used to waking up earlier at the same time. The point would be to see if you can achieve deeper sleep while getting accustomed to sleeping less.
(non trolling post of the week)
I used to seriously post here, now I prefer to troll.