What is being counted?
These are waiting-list records for the named service or test. A person can appear on more than one list, so the totals are not necessarily individual people.
DIAGNOSTIC WAITING-LIST EVIDENCE
Sleep studies: compare NHS waiting-list information
Explore 113 organisations with published records for this service. Check their waiting-list picture, then confirm the right service and referral route for you.
What does this say about the wait for a test?
In July 2026, the published proportion already waiting six weeks or longer ranged from 0% to 90.4% across 110 reporting providers.
These percentages describe entries on test waiting lists. They measure time already spent waiting, not how much longer you will wait. Ask the service about your clinical priority, next appointment and treatment date.
Range of provider percentages for the latest common reporting period shown here; not a patient-weighted national average or a ranking. Check each provider’s number of eligible records, particularly small groups.
Explore the providers and their figures →113
providers with relevant source records
July 2026
reporting periods represented
Provider level
the source may cover multiple sites
What do these numbers tell me?
They show pressure on a service’s waiting list at a past reporting date. Use them to prepare questions when discussing your options.
How long have they already waited?
A waiting band describes time that had already passed at the end of the month. It does not show the remaining wait or promise an appointment within that band.
What should I ask next?
Ask which team and location would handle your referral, whether the service is appropriate for you, and its current expected wait. A trust’s figures may cover several hospitals or clinics.
Understand your referral optionsWhat to check before choosing
- Confirm that the provider currently offers the exact service, procedure or test you need.
- Check the referral route, the place you would attend and whether the service is NHS-funded for your referral.
- Ask how published waiting-list figures relate to your referral and clinical priority.
- Consider repeat journeys and accessibility alongside the service evidence.
113 matching providers · alphabetical order. A recorded office address is not a confirmed service location.
Buckinghamshire Healthcare NHS Trust
Buckinghamshire · may cover several locations
July 2026 NHS reporting provider
On the test waiting list
10 waiting-list entries10 test waiting-list records were reported at the end of July 2026. A person can be waiting for more than one test.
Definition and source
Published measure: SLEEP_STUDIES: patients on the reported waiting list
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Already waiting 6 weeks or longer
0%0% of eligible test waiting-list records had already waited six weeks or longer. It does not predict the remaining wait for your test.
Based on 10 eligible waiting-list entries. A small number of records can make this percentage change sharply; avoid drawing strong comparisons.
Definition and source
Published measure: SLEEP_STUDIES: waiting six weeks or longer
The calculation uses a denominator of 10; see the source for the eligible group.
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Tests recorded during the month
0 tests0 tests was reported for “Tests recorded during the month”. Reported tests carried out during the month, including planned and unscheduled work. This is different from the number still waiting.
Definition and source
Published measure: SLEEP_STUDIES: reported diagnostic activity
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
Other published figures for this organisation
Cambridge University Hospitals NHS Foundation Trust
Cambridge · may cover several locations
July 2026 NHS reporting provider
On the test waiting list
95 waiting-list entries95 test waiting-list records were reported at the end of July 2026. A person can be waiting for more than one test.
Definition and source
Published measure: SLEEP_STUDIES: patients on the reported waiting list
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Already waiting 6 weeks or longer
25.3%25.3% of eligible test waiting-list records had already waited six weeks or longer. It does not predict the remaining wait for your test.
Based on 95 eligible waiting-list entries.
Definition and source
Published measure: SLEEP_STUDIES: waiting six weeks or longer
The calculation uses a denominator of 95; see the source for the eligible group.
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Tests recorded during the month
122 tests122 tests was reported for “Tests recorded during the month”. Reported tests carried out during the month, including planned and unscheduled work. This is different from the number still waiting.
Definition and source
Published measure: SLEEP_STUDIES: reported diagnostic activity
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
Other published figures for this organisation
Chelsea And Westminster Hospital NHS Foundation Trust
Kensington and Chelsea · may cover several locations
July 2026 NHS reporting provider
On the test waiting list
317 waiting-list entries317 test waiting-list records were reported at the end of July 2026. A person can be waiting for more than one test.
Definition and source
Published measure: SLEEP_STUDIES: patients on the reported waiting list
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Already waiting 6 weeks or longer
70.7%70.7% of eligible test waiting-list records had already waited six weeks or longer. It does not predict the remaining wait for your test.
Based on 317 eligible waiting-list entries.
Definition and source
Published measure: SLEEP_STUDIES: waiting six weeks or longer
The calculation uses a denominator of 317; see the source for the eligible group.
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Tests recorded during the month
222 tests222 tests was reported for “Tests recorded during the month”. Reported tests carried out during the month, including planned and unscheduled work. This is different from the number still waiting.
Definition and source
Published measure: SLEEP_STUDIES: reported diagnostic activity
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
Other published figures for this organisation
Countess Of Chester Hospital NHS Foundation Trust
Cheshire West and Chester · may cover several locations
July 2026 NHS reporting provider
On the test waiting list
156 waiting-list entries156 test waiting-list records were reported at the end of July 2026. A person can be waiting for more than one test.
Definition and source
Published measure: SLEEP_STUDIES: patients on the reported waiting list
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Already waiting 6 weeks or longer
1.3%1.3% of eligible test waiting-list records had already waited six weeks or longer. It does not predict the remaining wait for your test.
Based on 156 eligible waiting-list entries.
Definition and source
Published measure: SLEEP_STUDIES: waiting six weeks or longer
The calculation uses a denominator of 156; see the source for the eligible group.
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Tests recorded during the month
110 tests110 tests was reported for “Tests recorded during the month”. Reported tests carried out during the month, including planned and unscheduled work. This is different from the number still waiting.
Definition and source
Published measure: SLEEP_STUDIES: reported diagnostic activity
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
Other published figures for this organisation
County Durham And Darlington NHS Foundation Trust
Darlington · may cover several locations
July 2026 NHS reporting provider
On the test waiting list
770 waiting-list entries770 test waiting-list records were reported at the end of July 2026. A person can be waiting for more than one test.
Definition and source
Published measure: SLEEP_STUDIES: patients on the reported waiting list
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Already waiting 6 weeks or longer
35.2%35.2% of eligible test waiting-list records had already waited six weeks or longer. It does not predict the remaining wait for your test.
Based on 770 eligible waiting-list entries.
Definition and source
Published measure: SLEEP_STUDIES: waiting six weeks or longer
The calculation uses a denominator of 770; see the source for the eligible group.
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Tests recorded during the month
372 tests372 tests was reported for “Tests recorded during the month”. Reported tests carried out during the month, including planned and unscheduled work. This is different from the number still waiting.
Definition and source
Published measure: SLEEP_STUDIES: reported diagnostic activity
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
Other published figures for this organisation
Croydon Health Services NHS Trust
Croydon · may cover several locations
July 2026 NHS reporting provider
On the test waiting list
89 waiting-list entries89 test waiting-list records were reported at the end of July 2026. A person can be waiting for more than one test.
Definition and source
Published measure: SLEEP_STUDIES: patients on the reported waiting list
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Already waiting 6 weeks or longer
0%0% of eligible test waiting-list records had already waited six weeks or longer. It does not predict the remaining wait for your test.
Based on 89 eligible waiting-list entries.
Definition and source
Published measure: SLEEP_STUDIES: waiting six weeks or longer
The calculation uses a denominator of 89; see the source for the eligible group.
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Tests recorded during the month
76 tests76 tests was reported for “Tests recorded during the month”. Reported tests carried out during the month, including planned and unscheduled work. This is different from the number still waiting.
Definition and source
Published measure: SLEEP_STUDIES: reported diagnostic activity
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
Other published figures for this organisation
Dartford And Gravesham NHS Trust
Dartford · may cover several locations
July 2026 NHS reporting provider
On the test waiting list
0 waiting-list entries0 test waiting-list records were reported at the end of July 2026. A person can be waiting for more than one test.
Definition and source
Published measure: SLEEP_STUDIES: patients on the reported waiting list
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Already waiting 6 weeks or longer
Not reportedThere is no usable published value for this measure in the selected release.
Based on 0 eligible waiting-list entries. A small number of records can make this percentage change sharply; avoid drawing strong comparisons.
Definition and source
Published measure: SLEEP_STUDIES: waiting six weeks or longer
The calculation uses a denominator of 0; see the source for the eligible group.
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Tests recorded during the month
3 tests3 tests was reported for “Tests recorded during the month”. Reported tests carried out during the month, including planned and unscheduled work. This is different from the number still waiting.
Definition and source
Published measure: SLEEP_STUDIES: reported diagnostic activity
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
Other published figures for this organisation
Doncaster And Bassetlaw Teaching Hospitals NHS Foundation Trust
Doncaster · may cover several locations
July 2026 NHS reporting provider
On the test waiting list
29 waiting-list entries29 test waiting-list records were reported at the end of July 2026. A person can be waiting for more than one test.
Definition and source
Published measure: SLEEP_STUDIES: patients on the reported waiting list
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Already waiting 6 weeks or longer
0%0% of eligible test waiting-list records had already waited six weeks or longer. It does not predict the remaining wait for your test.
Based on 29 eligible waiting-list entries. A small number of records can make this percentage change sharply; avoid drawing strong comparisons.
Definition and source
Published measure: SLEEP_STUDIES: waiting six weeks or longer
The calculation uses a denominator of 29; see the source for the eligible group.
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Tests recorded during the month
49 tests49 tests was reported for “Tests recorded during the month”. Reported tests carried out during the month, including planned and unscheduled work. This is different from the number still waiting.
Definition and source
Published measure: SLEEP_STUDIES: reported diagnostic activity
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
Other published figures for this organisation
Dorset County Hospital NHS Foundation Trust
Dorset · may cover several locations
July 2026 NHS reporting provider
On the test waiting list
217 waiting-list entries217 test waiting-list records were reported at the end of July 2026. A person can be waiting for more than one test.
Definition and source
Published measure: SLEEP_STUDIES: patients on the reported waiting list
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Already waiting 6 weeks or longer
8.3%8.3% of eligible test waiting-list records had already waited six weeks or longer. It does not predict the remaining wait for your test.
Based on 217 eligible waiting-list entries.
Definition and source
Published measure: SLEEP_STUDIES: waiting six weeks or longer
The calculation uses a denominator of 217; see the source for the eligible group.
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Tests recorded during the month
152 tests152 tests was reported for “Tests recorded during the month”. Reported tests carried out during the month, including planned and unscheduled work. This is different from the number still waiting.
Definition and source
Published measure: SLEEP_STUDIES: reported diagnostic activity
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
Other published figures for this organisation
East And North Hertfordshire Teaching NHS Trust
Stevenage · may cover several locations
July 2026 NHS reporting provider
On the test waiting list
168 waiting-list entries168 test waiting-list records were reported at the end of July 2026. A person can be waiting for more than one test.
Definition and source
Published measure: SLEEP_STUDIES: patients on the reported waiting list
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Already waiting 6 weeks or longer
1.8%1.8% of eligible test waiting-list records had already waited six weeks or longer. It does not predict the remaining wait for your test.
Based on 168 eligible waiting-list entries.
Definition and source
Published measure: SLEEP_STUDIES: waiting six weeks or longer
The calculation uses a denominator of 168; see the source for the eligible group.
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
July 2026 NHS reporting provider
Tests recorded during the month
203 tests203 tests was reported for “Tests recorded during the month”. Reported tests carried out during the month, including planned and unscheduled work. This is different from the number still waiting.
Definition and source
Published measure: SLEEP_STUDIES: reported diagnostic activity
Diagnostic waiting list and activity at reporting-provider level. Planned and unscheduled activity are separate from the waiting-list cohort. Not a live booking estimate.
Other published figures for this organisation
Sources, definitions and coverage
Source: Diagnostic waiting times and activity. Reported test activity does not confirm walk-in availability.
Not every provider or service is covered by this source. Missing figures do not establish poor performance or confirm that a service is unavailable. Read source coverage and reuse information.