Fig. 2From: Assessment of effects of total sleep deprivation and subsequent recovery sleep: a methodological strategy feasible without sleep laboratorySchematic overview of the study design. The study comprised two parts, namely a baseline part (habitual sleep, BL) and a part with experimental sleep manipulations (total sleep deprivation, TSD; recovery sleep, RS). Laboratory sessions, as indicated by boxes in light gray, were conducted the evening before each night (18:00, denoted as “PRE”) and the morning after each night (08:00, denoted as “POST”). During all six laboratory sessions, fatigue was assessed using the POMS (Profile of Mood States) and alertness was assessed using the TAP (Test Battery for Attentional Performance). Sleep, as indicated by bars in dark gray, was assessed using portable polysomnography (PSG) and a self-report questionnaire (evening- and morning-protocols). RIS = Regensburg Insomnia Scale. PSQI = Pittsburgh Sleep Quality IndexBack to article page