GeraClinic / Diagnostic Waiting Times Index / Sleep studies
Respiratory physiology — sleep studies — NHS waiting times (DM01)
Overnight or home tests that monitor breathing, oxygen levels and sleep.
How long are NHS Sleep studies diagnostic waits?
Respiratory physiology — sleep studies is one of the 15 key diagnostic tests in NHS England's DM01 collection. Overnight or home tests that monitor breathing, oxygen levels and sleep. Obstructive sleep apnoea and other sleep-related breathing disorders. The operational standard is that fewer than 1% of patients should wait 6 weeks or more for a DM01 test — not met across diagnostics since November 2013. The current Sleep studies figure publishes here once it has been extracted from the DM01 file and verified.
What it diagnoses
Obstructive sleep apnoea and other sleep-related breathing disorders.
Why the wait matters
A sleep-study backlog delays the diagnosis and CPAP treatment of sleep apnoea, which affects daytime safety (including driving) and cardiovascular risk.
Sleep studies DM01 waiting figure
Figure loads from the DM01 file
The per-test Sleep studies waiting figure (number and share waiting 6+ weeks) publishes here as soon as it has been extracted from the NHS England DM01 monthly file and checked against the source. Gera does not display a diagnostic number it has not verified — so no figure is shown until then.
Source file: NHS England DM01 "Monthly Diagnostics Web File" (provider-level CSV/Excel), e.g. Monthly-Diagnostics-Web-File-Provider-<MONTH>-<YEAR>.xls, from the Diagnostics Waiting Times and Activity statistical work area.
Sleep studies: FAQs
- What is Sleep studies and what does it diagnose?
- Overnight or home tests that monitor breathing, oxygen levels and sleep. Obstructive sleep apnoea and other sleep-related breathing disorders.
- What is the NHS waiting-time standard for Sleep studies?
- Respiratory physiology — sleep studies is one of the 15 key diagnostic tests in NHS England's DM01 collection. The operational standard for all DM01 tests is that fewer than 1% of patients should wait 6 weeks or more — a standard not met across diagnostics as a whole since November 2013.
- Does a Sleep studies backlog affect other waits?
- A sleep-study backlog delays the diagnosis and CPAP treatment of sleep apnoea, which affects daytime safety (including driving) and cardiovascular risk.
- What is the current Sleep studies waiting figure?
- The per-test Sleep studies waiting figure publishes here as soon as it has been extracted from the NHS England DM01 monthly file and checked. Gera does not display a diagnostic number it has not verified against the source, so no figure is shown until then.
Waiting a long time for Sleep studies?
NHS Sleep studies waits can run well beyond the 6-week standard. Many people use a private online consultation to discuss symptoms, understand whether an investigation is appropriate, or get a referral while they wait. GeraClinic connects you with a UK-registered doctor by video — a private service, not part of or affiliated with the NHS. For a medical emergency always call 999 or go to A&E.
Other physiological measurement tests
Source
This page draws on the real NHS England DM01 Diagnostic Waiting Times and Activity release. Test descriptions are factual; any waiting figure shown is verified against the DM01 source, and figures not yet extracted are shown as such rather than estimated.
Contains public sector information published by NHS England and licensed under the Open Government Licence v3.0. Source: NHS England — Monthly Diagnostic Waiting Times and Activity (DM01) (January 2026, published March 2026).
Contains public sector information published by Gera Systems and licensed under the Open Government Licence v3.0 (source data). Source: Gera Diagnostic Waiting Times Index — derived from NHS England DM01 open data (January 2026, published 3 July 2026).