I love Twinklelily Supernights. They have side snaps so are great for skinny or chubbier bubs. I have 4 of these, but could do with another 1 or 2 (almost nappy hunt time ).
I also have a sandman but find it's very wide in the crotch. I only use it if DD has done a poo in one of her supernights.
Does the TL need a cover?