We are definitely going to end up in this situation and I was thinking of putting up his travel cot but buying a proper mattress for it x
Our next to me is also a travel cot. I used this with my first. It is way bigger than a next to me. I used it as a travel cot until my eldest was 2years old. I just bought a nice mattress as the ones for travel cots are too rubbish for newborn. Bought it at smyth toys for around 80 pounds I think. So if you're thinking about a travel cot for future trips, maybe this is an option.
Following! We will be in this exact situation any day soon, my boy is almost too big for his next to me and our room isn’t big enough for big cot! Could you measure for one of those space saving cots? X