Ahh help much welcomed (thanks
).. I didn't cover because the nappy was an all in one (perhaps the 1st problem?). He slept in a vest and pj bottoms & his vest was soaked up to his chest & his pj bottoms across the waist band so all leakage from the top. All inserts were totally soaked at the front but dry at the back (he's a tummy sleeper).
The WNSS was bought preloved. The inserts are all a couple of months old so should be at full absorbency.
I perhaps did his nappy up a little looser than I should after the blue leg incident but the inserts were pressed against his tummy.