Do all her night nappies leak - have you tried a few out? I tried several before finding one that lasted the night. With pockets, what inserts are you using? If you're using microfibre maybe bamboo & hemp would be better for a heavy wetter? We had to switch from m/f when DS was 1 - he can last anywhere between 1.5 & 3 hours now, depends on how much he's drank & the weather.
If you do decide to go back to sposies at night, it's not the end of the world, especially because you're using cloth during the day
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