Hard time sleeping on his own.

I swore when I was pregnant I wouldn’t co sleep. Bc it’s not safe and I didn’t want him to get used to it but it happened. Usually I am able to swaddle him at least for one nap thru the day and then usually all night or until he would wake up for his bottle then he usually sleeps with me until the morning. But the past 2 weeks he hates the swaddle but it’s the only way he would sleep alone! Now he won’t sleep unless he’s on my chest ( I obviously don’t go to sleep with him

On my chest) Or unless my arm is under him and he’s laying next to me. I want him out of my bed!!! It’s not safe and we make each other hot through the night! I’ve already tried the sleep sack with the weighted owl he’s only slept with it for 15 minutes. I just wish I could swaddle still 😢 I go away for a night in two weeks and the babysitter is telling me not to worry it’s one night but I know he will give her a hard time sleeping. any tips or recommendations on what I could do please! I really need to get him into his crib