The B&B Hotel Jena offers a variety of room types, including Family Rooms, Triple Rooms, Double Rooms, and Twin Rooms. All rooms are non-smoking and vary in size, with Family and Triple Rooms being slightly larger at 205 sqft while Double and Twin rooms are 172 sqft. The Family Room can accommodate 3 adults and 1 child, with a double bed and bunk bed, while the Triple Room can accommodate 3 adults with 3 twin beds. The Double and Twin Rooms can accommodate 2 adults each, with a double bed in the Double Room and 2 twin beds in the Twin Room.

From the provided data, the leisure amenities available at B&B Hotel Jena are not specified. However, it is important to note that the hotel offers comfortable accommodations and a convenient location.

Guests staying at B&B Hotel Jena can explore the city of Jena, which is known for its rich history and cultural attractions. They can visit attractions such as Zeiss-Planetarium, Schiller's Garden House, and the Botanical Garden. Additionally, the hotel's proximity to the Saale River allows guests to enjoy riverside walks or bike rides.

Although the specific leisure amenities at B&B Hotel Jena are not mentioned, guests can always inquire with the front desk for any available facilities or activities on-site. It is possible that the hotel may have a lounge area, fitness center, or other recreational options for guests to enjoy during their stay.