LAUSR

The study aims were to analyse the impact of sleeping in shared (SR) vs. individual (IR) rooms on objective and subjective sleep, and on slow-wave sleep (SWS)-derived cardiac autonomic activity during an official training camp in elite youth soccer players. Training and match workloads were characterized between training camps. Players slept significantly longer during IR than SR (+ 1:28 [1:18-1:42] min, P < .001). Sleep efficiency was significantly higher during IR than SR (+ 12 [10-15] %; P < .001), while sleep latency was significantly shorter during IR than SR (-3 [-15 - -4] min; P < .001). Subjective sleep quality was significantly lower during IR than SR (-2 [-3- -2] arbitrary units; P < .001). No significant differences were found for SWS-derived cardiac autonomic activity, neither for training/match workloads between training camps. Sleep may be affected by sleeping in shared compared to individual rooms during soccer training camps.