Moving into rented

Some advice needed. We might have found a buyer for our house at last and will need to move into rented accommodation until we find the next house. It could be for six months, a year or longer depending on how soon we find what we are looking for. What is the best thing to do both financially and practically, rent a furnished place and put furniture and personal things into storage or rent a bigger, perhaps more expensive unfurnished place and have all our own things around us. I know it will be stressful whichever we do and I won't be happy until we are settled in a new place with all my familiar things around me.