Baby boy won’t sleep at night in his pack n play he will only sleep being held or in the middle of us on the bed. We are going to buy a co sleeper for the bed tomorrow but any suggestions to get him to sleep in the pack n play? We tried swaddling, sleep sack, he’s formula fed so he gets fed and diaper changes right before bedtime. Lights are off. We have a sound machine too that doesn’t affect him. We need help lol