Covers for fitted diapers

Hello CD moms and dads! I use Green Mountain's Work Horse fitted diapers at night for my 4 month old son and we are having a hard time finding covers that do a good job of covering the whole fitted diaper. Does anyone have suggestions of what to use for covers? Most OS covers are just.... Lacking in some coverage, either leg gusset or not big enough to cover the front to back. I would love to hear what you use!! Thank you!