Sleeping arrangements

So I need some momma advice. I have a 5 month old son, and we started cosleeping like 50% of the time. He was sleeping in a crib next to my bed for the first 3 months at my house all by himself with no problem. Well, 2 months ago we found toxic mold in our rental so we are currently staying with family until our new home is finished (he was checked by the doctor and he is fine!) but since we’ve been here he has been waking up around 3-5 am every night like clockwork but won’t go back to sleep unless he lays down with me. He will wake up if I try to move him into his crib and won’t sleep again until I lay down with him. And now he won’t nap unless me or his dad cuddle with him. I’m totally not complaining I love cuddling with him and sleeping with him but I’m just worried it’s going to mean he won’t go to bed alone later when he is in his own room or will get too attached. I don’t know anyone else who cosleeps and all of my family and my husbands are not necessarily for it so I feel like I can’t ask them! I don’t know how I feel about cosleeping. I feel more comfortable if he is in a crib where I know he is safe but I’m not sure what to do at this point.