My son is 13 months old and has been having a tough time going down for naps and bedtime lately - he's always fussed a bit, but lately there's been more sitting up and crying than he's ever done in the past. He has also recently become obsessed with pillows and loves to pull them off the couch and lay down on the floor with his head on them. I'm curious to see if putting a smaller firm pillow in this crib would help him settle/lay down more quickly, but am not sure what the safety guidelines are around this. I've seen many different answers online, so I'm just wondering when you ladies felt comfortable with it!