When the child is under 6 months you probably don't want to delay when the child is crying. Under 6 months they cry to communicate a need - they're hungry; they need changing; they're in pain; they're cold' they're lonely.
Most people think it's a good idea to address those needs.
Even the people who like sleep training think you probably shouldn't start when the child is under 6 months.
There are a couple of people who think you can start sleep training under 6 months (Ferber; Gina Ford), but even Ferber sets a minimum age of 4 months.
If you are going to go down the "cry it out" route you will want to carefully investigate the different systems. Some of them have been discredited as harmful and cruel. Ferberization (or Gina Ford, they're pretty similar) is about the harshest system that a modern parent could get away with, but you need to be aware that a lot of people hate this method.
Most people think it's a good idea to address those needs.
Even the people who like sleep training think you probably shouldn't start when the child is under 6 months.
There are a couple of people who think you can start sleep training under 6 months (Ferber; Gina Ford), but even Ferber sets a minimum age of 4 months.
If you are going to go down the "cry it out" route you will want to carefully investigate the different systems. Some of them have been discredited as harmful and cruel. Ferberization (or Gina Ford, they're pretty similar) is about the harshest system that a modern parent could get away with, but you need to be aware that a lot of people hate this method.