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PHYSCI CM223 · Dis 1B

Neurobiology of Sleep

Fall 2026Colwell, C.S.4 units

Also listed as NEURO CM223 (closed by the department, needs consent): the same class, and each department holds its own seats and its own grade history.

dibs reads this section's seats hourly, like everything else, but it does not send alerts for graduate courses yet.

Seats, time, final and grades

Seats

Closed by the department.

1 enrolled enrolled. The department published this count and no capacity, so there is no share to fill.

Read 38 minutes ago. This is a recent reading, not a live seat count.

Its lecture reads closed by the department (3 enrolled): you attend both, so this seat is not one you can take while that holds. No waitlist listed.

Meets

R 5:00pm-5:50pm

This discussion only. You also attend Lec 1.

Final

Thu 10 Dec, 11:30am to 2:30pm

One exam for the whole class, Los Angeles time.

Read 4 days ago.

Grades

no grade history

Put this class on a board

A board is one quarter you are drafting, so it needs an account to live in. Signing in brings you straight back to this page, with this class still in front of you.

Before you can enroll

Restrictions checked 4 days ago and may be outdated. Seat alerts are unavailable for this course. Check the registrar.

When it meets

This discussion and its linked lecture.

Mon
Tue
Wed
Thu
Fri
4pm
5pm

Lec 1

4pm-5:50pm

Lec 1

4pm-5:50pm

Dis 1B

5pm-5:50pm

Scroll sideways for the whole week. All meeting times are listed below.

  • Dis 1B

    R 5:00pm-5:50pm

  • Lec 1 (required lecture)

    MW 4:00pm-5:50pm

Geology Building 6704

Grades

no grade history

More about PHYSCI CM223, though its grade history is empty too.

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

Workload, very light. 5.0 of 5 for Christopher Colwell, where 5 is lightest. Read 15 days ago.

What the work looks like

  • Papers mentioned, no number given, 1 mention in past reviews
  • Presentations mentioned, no number given, 1 mention in past reviews

Based on 2 reviews; source checked 7 days ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.

Will it still be here

Not a question any more: see the notice at the top of this page.

Seats over time

Unchanged over about 2 months

Both readings say 1 seat.

18 Aug 22:4017 Sep 08:1616 Oct 17:53
Checked 166 of the 1266 hours with hourly history, 13%. No reading was recorded in 1100 hours. dibs had no hourly record before 25 Aug, which is the other 146 of 1412 plotted.Seats from 18 Aug 22:40 to 16 Oct 17:53, 1 to 1. Recorded enrollment counts match. Checks are not continuous monitoring. Changes between checks may be missed.

A dot is a reading. Recorded enrollment counts match, so the line is flat across the whole window: it says when dibs looked rather than what changed. The last dot is the last time dibs read this section, moved or not: 38 minutes ago.

Show the readings (2)
Recorded Enrolled Capacity Status Waitlist Hours read
16 Oct 17:53 1 0 closed by the department - 166 of 1412, 146 no hourly record
18 Aug 22:40 1 0 closed by the department - -
How readings and alerts work

Dated seat counts can be available even when hourly check history is missing. Gaps do not show whether seats changed between observations.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.

Class chat

Nobody on dibs watches this class or has it on a plan yet. Nobody has posted yet.

Dis 1B shares one room with Lec 1 and every other discussion under it, because that is what a student means by "my class".

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