Giving your baby some gripe water will help with the babies digestive issues and help to calm the babies stomach and calm the baby down.
So by calming the baby down the gripe water will usually make some babies sleepy so the baby may fall asleep faster and stay asleep longer after being given some gripe water.
Gripe water should be given to the baby at least 30 minutes after the baby has been fed it's formula to settle any gas in the babies stomach.
Gripe water helps the baby when they get gassy from eating too fast or from gulping in air while feeding.