Table 2.
Actigraphic sleep variables during study days 1–5 while following a strict sleep schedule and during the 24 hrs prior to each emotion assessment for Nap and No-Nap conditions.
| Study Days 1–4 | Nap | No-Nap | Statistics | ||||
|---|---|---|---|---|---|---|---|
| M | SD | M | SD | t | d | p | |
| Night Lights-Out Time | 20:00 | 0:29 | 20:04 | 0:28 | .88 | .27 | .40 |
| Morning Rise Time | 6:53 | 0:27 | 6:55 | 0:26 | .32 | .10 | .76 |
| Nap Lights-Out Time | 13:28 | 0:47 | 13:28 | 0:51 | −.03 | .00 | .98 |
| Nap Rise Time | 15:15 | 0:35 | 15:20 | 0:42 | .39 | .12 | .71 |
| Time in Bed (minutes) | 759.84 | 37.00 | 762.73 | 34.81 | .42 | .13 | .69 |
| Sleep Period (minutes) | 687.70 | 43.57 | 692.22 | 34.41 | .54 | .17 | .60 |
| Sleep Efficiency (%) | 86.09 | 3.94 | 85.02 | 4.82 | −1.34 | .42 | .21 |
| 24 Hours Prior to Assessments | M | SD | M | SD | t | d | p |
| Night Lights-Out Time | 19:55 | 0:30 | 19:59 | 0:21 | −.81 | .15 | .44 |
| Morning Rise Time | 7:00 | 0:29 | 7:01 | 0:25 | −.05 | .00 | .96 |
| Nap Lights-Out Time | 13:19 | 0:42 | -- | -- | -- | -- | -- |
| Nap Rise Time | 15:12 | 0:52 | -- | -- | -- | -- | -- |
| Time in Bed (minutes) | 777.50 | 51.64 | 660.70 | 33.17 | −10.25 | 3.24 | .000 |
| Sleep Period (minutes) | 713.14 | 42.27 | 616.00 | 32.44 | −6.84 | 2.58 | .000 |
| Sleep Efficiency (%) | 87.69 | 6.51 | 84.80 | 8.52 | −.99 | .38 | .36 |