schedule/DC0.html

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+<<header>>
+
+<h1> [[!DualCore]] 0 / Segmented </h1>
+
+<p>
+Segmented sleep is a [[!biphasic]] and [[!dualcore]] schedule.
+The cores are concentrated in night hours and no sleeps are present in the day.
+It is a very old polyphasic schedule, and is generally considered to be a bit harder,
+but still beginner friendly. Some people may also be naturally segmented sleepers, i.e.,
+they naturally and consistently wake up during the night while on [[+M0]].
+[[!dualcore]] schedules are highly recommended for such people.
+</p>
+
+[[https://napchart.com/snapshot/1RyX47mbG]]
+
+<table class=h>
+<tr><th>[[!TST]]</th><td>7h</td></tr>
+<tr><th>[[!Cores]]</th><td>2 @ 3.5h</td></tr>
+<tr><th>[[!Naps]]</th><td>0</td></tr>
+<tr><th>[[!Difficulty]]</th><td>0-2</td></tr>
+<tr><th>[[!RSR]] [[!Difficulty]]</th><td>0</td></tr>
+<tr><th>Flex-potential</th><td>Moderate</td></tr>
+</table>
+Variant links: [[+DC0-Extended]] [[+DC0-Recovery]]
+
+<h2> Mechanism </h2>
+The cores in the SWS and REM [[!peaks]] are intended to gain the respective vitals,
+but in practice, both cores have some of both vitals. A 3h or more coregap is recommended
+to define 2 separate sleep blocks, avoiding an interuptted [[+M0]] sleep.
+
+Two explanations are present for the 3.5h core lengths:
+<ul>
+  <li>
+    Each core consists of 2 full sleep cycles plus an extra 30 minutes of
+    sleep time to cover the statistically likely REM period.
+  </li>
+  <li>
+    The possibility that the cycles extend to roughly 105m
+    Which is different from standard 90m cycles.
+  </li>
+</ul>
+
+<h2> Difficulty </h2>
+<ul>
+  <li>
+    Natural segmented sleepers should adapt easily, and it may be basically complete
+    if they have a long exposure to the mechanics stated above.
+  </li>
+  <li>
+    Non-Natural segmented sleepers may find more trouble adapting compared to other
+    [[!biphasic]] schedules, although it isn't impossible.
+  </li>
+  <li>
+    Common issues like boredom in the night gap and sleep inertia may be present, but
+    are generally overcome after adapting.
+  </li>
+</ul>