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Approximate steady-state values from exponential fit.
| Variable | REM sleep | NREM sleep stages 2, 3, and 4 | TST |
| Study 1 | |||
| Time constant (days) | 0.8 | 3.7 | 3.1 |
| Steady state value (hours) | 2.0 | 5.9 | 8.6 |
| Study 2 | |||
| Time constant (days) | (n.s.) | 1.5 | 1.5 |
| Steady state value (hours) | (n.s.) | 5.7 | 8.9 |
All parameters are at p < 0.01 by fit.
Exponential fits were not appropriate for other sleep stages.
