La Siesta Diamond Hotel & Spa is a boutique hotel in Hanoi that offers smoke-free rooms for guests. The hotel is located in the Old Quarter, close to popular attractions such as Hoan Kiem Lake and the Temple of Literature. The smoke-free rooms are elegantly designed and feature modern amenities including air conditioning, flat-screen TVs, and free Wi-Fi. Guests can enjoy a range of facilities and services including a spa, fitness center, and a rooftop restaurant with panoramic views of the city. The hotel's friendly staff is always ready to assist guests and ensure a pleasant stay. With its smoke-free rooms and convenient location, La Siesta Diamond Hotel & Spa is a great choice for travelers seeking a smoke-free accommodation in Hanoi.