Thanks for getting in touch with us. This bed is one of the sturdiest and robust beds we have, constructed from extra thick fibre board. It can be used by a wide range from small children, girl or boy, right up to teenagers. I am sure your son will feel comfortable on it. These beds are tested upto the weight of 12 stones. Also the length of this bed is 212cm (approx 7ft), so that will be fine enough.
Love Furniture Team