To be most effective, it is essential to use BabyDoze regularly and as soon as possible after birth. If you wait to until you know that you have a sleepless child, enduring night after night of disturbed sleep, it may be too late. Medical tests have shown repeatedly that the early start pays dividends. Using it is simplicity itself. Simply play it loud enough for the baby to hear. Within a short period of time you can expect peace…perfect peace.