I am moving house later this year but will have a gap of 2.5 months during which time I will need to rent. I am finding it hard to find rentals which do not require a minimum 6 months contract and have so far only managed to find an upper floor flat which will take me. My cat currently has a flap and comes and goes as he pleases. How difficult will it be for him to be indoors for the period? I am happy to buy a harness and take him for a walk each day if that might help.