Mommy, for two days now I notice that my daughter doesn't seem to be w…

Mommy, for two days now I notice that my daughter doesn't seem to be writing at night ? She eats her last meal at 10 pm and falls asleep, waking up at 4 am, but the diaper isn't full, usually it's always full. It's been this way for two days, has anyone experienced this? I never have any problems with pooping, but here it is like this...