This dataset contains ultra-wideband (UWB) channel impulse responses (CIR) registered in a fully furnished apartment. The data were primarily used to assess the effectiveness of an Non-Line-of-Sight (NLOS) detection algorithm. The CIRs were collected using Decawave EVK1000 Evaluation Kit for 57 different modules' geometric configurations (at least 100 CIRs for each configuration). Besides the CIR measurements, the modules performed ranging. The results were saved using the DecaRanging application. More details on the dataset can be found in the dataset_description.pdf file. The dataset is to be cited as follows: Marcin Kolakowski. (2021). UWB Channel Impulse Responses Registered in a Furnished Apartment (Version 1.0) [Data set]. Zenodo. http://doi.org/10.5281/zenodo.4742391 When using the data, please consider also citing the original paper, for which it was collected: M. Kolakowski and J. Modelski, “Detection of direct path component absence in NLOS UWB channel,” in 2018 22nd International Microwave and Radar Conference (MIKON), Poznan, Poland, May 2018, pp. 247–250, doi: 10.23919/MIKON.2018.8405190