How much sleeping did you do in the first trimester ?

I’m 10 weeks with my 4th baby and I’ve never been so tired in my entire life or all my pregnancies. I’m so excited to go to bed at night and get a good 8 hours but I wake up and after dropping kids at school I immediately go back to bed (I used to go to the gym). I’ll sleep and take 3-4 hour naps and then still want to lay around.