- Is Sleep Research Society a tax-exempt 501(c)(3)?
- Yes. Sleep Research Society is recognised by the IRS as a 501(c)(3) organisation (EIN 23-7125856). The IRS recognised Sleep Research Society as tax-exempt in August 1971.
- What is Sleep Research Society's EIN?
- Sleep Research Society's Employer Identification Number (EIN) is 23-7125856. The EIN was assigned by the IRS in August 1971. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.
- What does Sleep Research Society do?
- Dissemination of research directed toward the study of Sleep and its disorders, promoting interaction among scientists in the area of research.
- Where is Sleep Research Society located?
- Sleep Research Society is located at 2510 North Frontage Road, Darien, IL, 60561.
- When was Sleep Research Society founded or recognised by the IRS?
- Sleep Research Society was recognised by the IRS as a tax-exempt organisation in August 1971. The IRS ruling date is the earliest authoritative date available for most US nonprofits.
- What is Sleep Research Society's annual revenue?
- On its most recent Form 990 (fiscal year 2025), Sleep Research Society reported $1.7M in total revenue and $1.6M in total expenses.
- Has Sleep Research Society been auto-revoked by the IRS?
- No. Sleep Research Society (EIN 23-7125856) does not appear on the IRS Auto-Revocation List. Givalgo Discover cross-references the IRS Auto-Revocation List on every profile load; if status changes, this page reflects it.
- Is Sleep Research Society listed in IRS Publication 78?
- Yes. Sleep Research Society is listed in IRS Publication 78 as an organisation eligible to receive tax-deductible charitable contributions. Pub 78 status is the canonical IRS signal that donations to an org are deductible.
