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Reduced sleep quantity and quality is common following team-sport competition, which can impair athletic performance and recovery. Sleep extension can improve athletic performance, however its effect on post-exercise recovery are unknown. We aimed to investigate the effects of sleep extension on post-exercise recovery.

Ten healthy males had recovery markers (countermovement jump height; CMJ, peak isometric knee extensor torque (PT), autonomic function (heart-rate variability; HRV), perceived effort (RPE), and subjective wellbeing) assessed at baseline (Pre) and 0 h, 1 h, and 2 h post a high-intensity interval exercise (HIIE) session. Participants then underwent 8 h (CON) and 10 h (EXT) time in bed (TIB) in a random order following HIIE, before recovery was re-assessed 16 h post HIIE. Wrist-watch actigraphy measured total sleep time (TST), sleep onset latency (SOL), sleep …