35w + and exhausted

I feel like I'm back in the first trimester. I sleep fitfully at night
and yawn all day. Anyone been through this that has words of wisdom?
Is this what I should expect for the last 4+ weeks?

Now I really wish I had followed people's advice and done
childbirthing classes and baby gear collecting earlier, because I'm
too tired now. For those of you in your 2nd trimester - do them while
you have energy and don't put them off until the end. Yawn.
Rachel
edd 10/20