Currently using little lamb bamboo fitted nappies for night time, with bamboo insert (2 tonight to see if that helps), fleece liner and blueberry cover.
I'm not loving the LL bamboo fitted as it gets wet all around DS' waist which can't be comfortable. We have one Bamboozle Stretchy One Size which doesn't seem to have that's problem so I'm guessing it's more absorbent, and I like that it's birth to potty. But they're pricey whereas I got 5 LL for £25.
So I'm wondering what inserts/boosters would be best to add absorption to the LL fitted, to try and stop the waistband getting so wet? I've heard good things about charcoal inserts? The LL nappies don't seem to allow much room for boosters though 
DS is 13 weeks and I don't think he's a particularly heavy wetter as in the day he can go 2-3 hours in one nappy with just one insert.