BetaHCF Case Studies Library is in beta. We're still adding campaigns and fixing things.
HCF Case Studies Library

← All campaigns · Open in the library

startschoollater.net

Start School Later

Also: Healthy Hours

Grassroots nonprofit begun from a 2011 We the People petition by Terra Ziporyn Snider (co-founder Maribel Cabrera Ibrahim) to make healthy, later school hours a policy; volunteer chapters lobby districts and states and provide sleep education. Allies include AASM, AAP and NSF.

Years
2011–now
Country
United States
Topic
Sleep
Asks people to
Support a policy
Strategy
Trusted messenger
Channel
EventsWebsite
Audience
General publicParents
Parents, school boards, legislators

Evidence

NoneUnknown

No evaluation of the advocacy itself. Related literature: law-based argument framework, behavioural-insights strategies for school boards, review of district surveys; parental support for later starts (51%) rises with knowledge of AAP recommendation. Policy outcomes of later starts (e.g. +41-43 min actigraphy sleep in Minnesota) are the goal, not campaign effects.

Sponsor (who paid)

  • Start School Later, Inc. NGO

Credits (who made it)

Not recorded yet.

Sources

  1. Start School Later (official page) sponsor
  2. Self-report surveys of student sleep and well-being: a review of use in the context of school start times reference · 2017 · DOI 10.1016/j.sleh.2017.09.002 · PMID 29157646
  3. Applying behavioral insights to delay school start times reference · 2017 · DOI 10.1016/j.sleh.2017.07.012 · PMID 29157644
  4. Law-based arguments and messages to advocate for later school start time policies in the United States reference · 2017 · DOI 10.1016/j.sleh.2017.09.003 · PMID 29157645
  5. Later School Start Times: What Informs Parent Support or Opposition? evaluation · 2017 · DOI 10.5664/jcsm.6660 · PMID 28558863
  6. Sleep science, the cultural authority of medicine, and school start times evaluation · 2025 · DOI 10.1016/j.socscimed.2025.118912 · PMID 41456370
  7. Start School Later (Wikipedia) news

Research notes

Created 2026-10-23 from the sleep campaign literature search (PubMed and web search; OpenAlex was unreachable), see docs/sleep-campaigns-literature.md. Findings are paraphrased from abstracts, not full texts; official URLs come from search results and were not opened. California SB 328 (2019) and Florida laws are policy wins often linked to this movement; not verified here. Strategy values "support-policy" is a target-behaviour id, kept as a guess.

Record cases/start-school-later.json, updated 2026-10-23· Link to this campaign