The types of rooms available at Solaria Nishitetsu Hotel Sapporo include Lodge style Double Room, Standard Double Room, Corner Twin Room, Superior Twin Room, Standard Twin Room, Hollywood Twin Room with Extra bed, King Bed Room with Shower, Deluxe Triple Room, Superior Double Room, Accessible Room, and Premium Twin Room. None of the rooms allow smoking. The rooms accommodate either 2 adults with 1 child or 3 adults with 2 children. The bed sizes vary between Queen size, Twin bed, Double bed, and Sofa Bed. The room sizes range from 226 sqft to 614 sqft.

Guests at Solaria Nishitetsu Hotel Sapporo can enjoy various leisure amenities during their stay. The hotel features a spa where guests can relax and unwind. The specific details about the spa facilities and treatments are not provided in the given data.

In terms of dining options, the hotel offers multiple restaurants on-site. Unfortunately, the specific names of these restaurants are not mentioned. However, the ambiances of the dining establishments are described as modern.

Guests can indulge in a diverse range of cuisines at the hotel's restaurants, including French, Japanese, and local cuisine. It is worth noting that the quantity of restaurants and the individual cuisines available may vary, as the exact numbers are not provided in the information given.

Overall, guests can spend their time at Solaria Nishitetsu Hotel Sapporo by enjoying the spa facilities and exploring the variety of dining options available.