Pampers Baby-Dry Nappies, Up to 12 hours of overnight dryness. Discover why a new generation of babies are waking up happy. There is nothing better than seeing your baby wake up happy in the morning. It’s also a sign they’ve had a great night’s sleep. To help them get a great night’s sleep, the next generation of Pampers nappies has three unique absorbing channels. These channels help distribute wetness evenly using the whole nappy for less wet bulk and up to 12 hours of dryness. So your baby can wake up just as dry as they were when they went to sleep.