Sleepless night

I did not have enough sleep last night even though we went to bed as early as 8 pm since hubby and I usually wake up at 3 am for his work. I was awake the whole time in bed with my mind wandering around. So many thoughts going on in my brain and I could'nt shut it off. Then I have to go to the bathroom often. Though I went back to sleep when hubby left for work but only slept for 2 hours I think. So, I now I felt tired. I'm not sure if I can take a nap coz I'm not use to taking a nap during the day.