Ittis have a low rise, so I wouldn't have thought they'd be good as a night nappy? You want high rise for keeping everything in
Blueberrys are the Swaddlebees fitted pocket, right? I have one, nice trim fit for a pocket, but I wouldn't use it overnight as my super-wetter would out-wee it half-way through (I stuff an extra Mandy Mac hemp booster in my Blueberry for day use if I want to get more than an hour - she just wees a lot!) ...but if your bub doesn't wee lots overnight you might be ok. You'd definitely need a bamboo or hemp extra booster though, enough microfibre to last the night would be very bulky I imagine.
If you want the convenience of an AIO/2, Genesa Forge are both absorbent and trim. If you want to make absolutely sure there are no leaks, you are probably best off with a fitted night nappy and wool shorties/longies as then the wool absorbs any leaks.