2nd question is along the same vein. Are mesh liners safe for cribs? We're afraid she'll still be small enough to fit her head through the bars even when she's big enough to sleep in the crib.
How old is your crib? Cribs that were manufactured recently have strict specifications regarding the spacing of the slats. Below is from thebabydepartment.com re: slat spacing current standards:
"Crib slats should be no more than 2 3/8 inches apart to prevent your baby from slipping through the slats. The easiest way to check the spacing of the crib slats is to attempt to pass a soda pop can between the slats. Properly spaced slats will not allow the soda pop can to pass through the slats."
I highly doubt your LO's head is smaller than a soda can. If you have an older crib, you should check all current specs to make sure your crib is safe.