Table 1.
Descriptive statistics presented as Mean (SD) for actigraphic sleep measures, actigraphic estimates of the latency to first saliva sample, and cortisol awakening response (CAR) measures for parent collected (P) and experimenter collected (E) napping conditions.
| Napping Condition | ||||
|---|---|---|---|---|
| Morning Nap-E | Afternoon Nap-E | Afternoon Nap-E | No-Nap-P | |
| Actigraphy Measures | ||||
| Nap lights-out time | 11:07 (0:42) | 13:42 (0:35) | 13:11 (0:41) | ---- |
| Nap sleep start time | 11:26 (0:46) | 13:59 (0:31) | 13:33 (0:55) | ---- |
| Nap sleep end time | 12:57 (0:59) | 15:33 (0:36) | 15:05 (0:49) | ---- |
| Nap period (min) | 116.7 (31.4) | 119.0 (32.0) | 120.0 (24.9) | ---- |
| Nap duration (min) | 90.5 (33.4) | 94.8 (25.1) | 91.8 (23.6) | ---- |
| Latency to 1st sample (min) | 5.8 (5.8) | 6.2 (4.9) | 8.2 (7.5) | ---- |
| CAR Measures | ||||
| AUCg (µg/dl) | 21.72(9.92) | 13.16 (4.27) | 11.72 (4.79) | 8.41(4.18) |
| Wake-Max change (µg/dl) | 0.16 (.13) | 0.11 (.07) | 0.10 (.06) | 0.01 (.02) |
Key: AUCg = area under the curve with respect to ground; Wake-Max change = difference between awakening sample (0 min) and maximum sample at 15, 30, 45, 90, or 135 min.