What a load of cack, burn the book!
Im due next week, yes my feet are so friggin huge I can only fit into pumps, yes I get breathless if I overdo it, and sometimes I feel a bit shit, but thats me, every pregnancy is different.
As for not being able to sleep, bollocks! Im now taking two naps through the day, (although im in my mid 30s, im guessing I would have had more energy for this 10 years ago) you will be woken up by your bladder at least twice a night, but getting back to sleep shouldnt be a problem, I find being horizontal very comfortable these days, its sitting upright especially when driving that can be a bit uncomfortable.
I agree with Pancake, dont read about the birth either, I havent, nor have I been to any classes or read any of the crap in the bounty packs.
Ignorance, as they say, is bliss 
Its gonna happen, it will hurt, (although I plan on grabbing every drug they wanna give me to reduce the length of time I have to suffer) I think there is too much info out there, and most of it is worst case senario shit, whatever will be will be, just enjoy the pregnancy, and dont over think it.