I stayed one night in this hotel due to cancelled and changed flight (I did not select the place but was offered this hotel by Nok Air). Soundproofing is really poor. I was in the 2 floor and could not sleep, there was a loud karaoke party on the first floor, over midnight still working. I could alsoclearly hear TV working in neighbor room. I spent one sleepless hour trying to ignore loud music & TV, waiting karaoke to be stopped, finally called to reception and asked to move me to another room. They gave me room on 3 floor, it helped a bit. I still think that soundproofing is such an crutial part for hotel, that I can not give a high rating for Nanaburi hotel, even staff was friendly, breakfast was good..