At Solo Express Sukhumvit 81 hotel, there are three types of rooms available. The Superior Twin Room has twin beds and can accommodate 2 adults and 1 child. The Deluxe Double Room has a king size bed and can also accommodate 2 adults and 1 child. Similarly, the Superior King Room also has a king size bed and can accommodate 2 adults and 1 child. Smoking is not allowed in any of these rooms.

The Solo Express Sukhumvit 81 hotel features a business center for guests to utilize for work-related tasks. Unfortunately, no other specific amenities are mentioned in the provided data. However, guests can still make the most of their time at the hotel by exploring the surrounding area. Sukhumvit is a vibrant district in Bangkok, known for its shopping, dining, and entertainment options. Guests can take a stroll along Sukhumvit Road and visit the various malls and markets nearby. They can also explore the local street food scene and sample delicious Thai cuisine. Additionally, the hotel is conveniently located near public transportation, making it easy for guests to explore the rest of Bangkok's attractions such as Wat Arun, the Grand Palace, and Chatuchak Weekend Market.