Hi, this may sound silly. My 6mth old boy usually does heaps of wees (and poos for that matter, usually after every feed still). At night I usually find him with a massive heavy wet nappy and sometimes a wet bed if the nappy leaks. This morning his nappy was fresh as though I had just put it on him. Is this something I should be concerned about? He woke up once for a feed last night as usual.