Any feedback or advice on bumpers for cribs? The mesh ones aren't compatible with our crib because…

Any feedback or advice on bumpers for cribs? The mesh ones aren't compatible with our crib because we don't have slots on the side. Our daughter always shoves her feet through the slots and it makes me uncozy:[ She's 8 months old, and we also use a video monitor that detects if she were to stop breathing. Open to other ideas as well!