DS aged 4 still needs to wear a nappy at night, because he's far from dry. In fact, so far from dry that most mornings we've had leakage and I need to change his sheet and mattress cover. Sometimes he wakes in the night because his pyjamas and bed are wet and I have to change everything.
He's currently in a Pampers Baby Dry size 6 and its leaking! Generally its not that the nappy is soaked through - its simply that its leaked. I've always used Pampers and DS has got a sore bottom from other, cheaper brands in the past, but I'm getting really fed up of this.