co sleep

So my LO is 6 months we wil be traveling with him for the first time in a week, which means he will have to sleep with me & my SO.I have been trying to get him used to sleeping in the bed with me & my SO this past week but he is so used to sleeping alone in his crib. He wakes up about every 30-45 mins when he's in bed with us. How can I help him get used to being in bed with us.