Nap sleep architecture
Participants’ average sleep latency did not significantly differ between the 10 min (10.28 ± 7.03 min, The 10 min nap comprised mainly N1 (46.77 ± 28.06%) and N2 sleep (49.15 ± 26.40%) and contained significantly less N3 sleep compared to the 30 min (10 min nap, N3%: 2.57 ± 8.22; 30 min nap, N3%: 27.45 ± 22.63, For the 10 min nap condition, 18.8% woke from N1, 71.9% woke from N2, 6.3% woke from N3, and 3.1% woke from REM sleep. For the 30 min nap condition, 19.4% woke from N1, 25.8% woke from N2, 54.8% woke from N3, and 0% woke from REM sleep. For the 60 min nap condition, 20% woke from N1, 53.3% woke from N2, 6.7% woke from N3 and 20% woke from REM sleep.