HOW TO QUANTIFY SLEEPINESS DURING AN ATTEMPT TO SLEEP? ArticlePutilov Arcady A., Sveshnikov Dmitry S., Yakunina Elena B., Mankaeva Olga V., Puchkova Alexandra N., Shumov Dmitry Ye, Gandina Eugenia O., Taranov Anton O., Ligun Natalya V., Donskaya Olga G., Verevkin Evgeniy G., Dorokhov Vladimir B.Physiological Measurement. Том 45. 2024.