Sleep inertia
Following Tassi and Muzet [Overall, we found minimal sleep inertia. For individuals on a habitual short sleep schedule, even with the hour-long nap, sleep inertia resolved within 30 min of waking suggesting that one may schedule cognitive work to begin ~30 min after waking from naps ranging from 10–60 min. Nonetheless, where severe sleep restriction or total sleep deprivation precedes the nap, it is likely that sleep inertia would be more pronounced regardless of task difficulty or domain [