Table 3.

Morning salivary cortisol and α-amylase concentrations measured at baseline (B2), after seven nights of sleep restriction (SR7) and after 2 or 13 sleep recovery nights (R2 and R13).

Saliva Concentrations	Baseline: B2	Restriction: SR7	Recovery: R2	Recovery: R13
Cortisol (nmol/L)	8.97 ± 1.45	6.00 ± 0.97#	5.41 ± 0.72#	8.25 ± 0.74
α-AMYLASE (U/mL)	48.66 ± 9.90	27.20 ± 3.79##	29.50 ± 4.53##	35.16 ± 5.96#

Concentrations are represented as mean ± SEM (n = 12). Significant differences compared to baseline values (B2): ^#p < 0.05; ^##p < 0.01.