The Imagine Bamboo Fitted One Size diaper is perfect for overnights. My son (8 months old at the time of writing this) sometimes leaks out of disposable diapers but I have NEVER had a leak with the imagine bamboo fitted and Imagine PUL cover combo.
He sleeps from 8pm-8:30ish am (usually 9 by the time I get to changing his diaper)
The fit is a bit disappointing as he is already on the last snap setting (no snaps at all) so I'm not sure how much longer he is going to fit in it. I might be searching for a new nighttime diaper soon. I'll update this post when he outgrows it. There's plenty of room left to grow in the cover.
The rise is changed by 2 rows of snaps. 3 snaps in each row. And has an insert that detaches for laundering.