By responding promptly to a baby, we teach the baby that she can make herself heard, is safe in the world, and can make her needs known. If this is true, the converse must be as well. Sleep training is psychologically damaging. This is not an uncommon or abnormal frequency for some babies, in some phases of development, and the resulting sleep deprivation for parents getting up each time is devastating. Parental sleep deprivation is not a joke, and the results can be horrible.
Many parents are truly desperate for sleep.
Often they must get up and work a full day outside the home, and literally cannot afford to be sleep-deprived. I found my solution a year into motherhood, when my son was still waking up each night at least once. I discovered that having him in bed with me virtually eliminated my daily exhaustion. I still awoke when he did, but fell promptly back to sleep, having done nothing more than roll over. When our second child was born, he slept beside me from the first day of his life, and the results were astounding.