That is also true for Singaporean women. My friend is from Singapore and after giving birth she stayed in bed for 30 days and was fed a vegetable broth everyday which is supposed to be good for milk supply. Her mother and MIL were in charge of keeping the house during that time and mum/bub basically spent the whole time in bed.

To be honest, that might be ok for a few days but I think I'd go nuts staying in bed that long!!