How does it not leak all over the baby, mattress, etc? My twins are still having trouble holding their bottles (they don't get that they need to tilt it). Once they figure that out I'd love to offer them their bedtime bottles in the crib (since it takes so long to feed them individually), but I know it would end up all over them. I'm ising Dr Browns level 3 nipples...are you all using a slower nipple? Or a sippy cup. Sorry if this is a dumb question.
Re: For those who allow bottles in the crib...