I suppose there is always a certain truth. It is true that we need to rest during confinement but some things are just so 'hard' to follow just like cannot shower... but i do know there are ppl who really follow.
but i really do believe in the resting part. rest as much as you can, cos after...
My babies all sleep thru since 1st mth.... but all are different.....
My 2nd son slept thru till he was 6mths old.... after that every night must wake up at least once to drink milk until he was 3 yrs old....
No hard and fast rule