Emegbo, S., Pedlar, C., Stanley, & Whyte, G. (2003). Acute normobaric hypoxia and its effects on measures of sleep quality in recreational athletes. Medicine and Science in Sports and Exercise, 35(5), Supplement abstract 891.

The effect of sleeping in a normobaric hypoxic tent (simulated ~2,500 m) on sleep quality was investigated. Male recreational athletes (N = 8) slept for three nights in normobaric hypoxic or placebo hypoxic conditions.

Sleep was not markedly affected except on the first night.

Implication. When using hypoxic tents, one or two nights are required for adjustment until normal/satisfactory sleep is attained.

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