Sleep Train
E476714
Sleep Train is a former American mattress retail chain known for its extensive network of bedding stores, particularly in the western United States.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Sleep Train canonical | 3 |
| Sleep Train Pavilion | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4873417 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Sleep Train Context triple: [ARCO Arena, sponsor, Sleep Train]
-
A.
Night Train
Night Train is a celebrated jazz album featuring bassist Ray Brown, known for its swinging, blues-inflected interpretations of standards.
-
B.
Night Train
"Night Train" is a song by the English alternative rock band Keane, known for its melodic style and emotive lyrics.
-
C.
Light Train
Light Train is a type of urban rail transit system characterized by relatively low weight vehicles, moderate capacity, and operation often on dedicated or semi-exclusive tracks for short- to medium-distance passenger transport.
-
D.
Go By Train
"Go By Train" is the iconic neon-lit slogan displayed atop Portland Union Station that promotes rail travel and has become a recognizable symbol of the city.
-
E.
Downbound Train
"Downbound Train" is a somber, narrative-driven rock song by Bruce Springsteen that appears on his 1984 album *Born in the U.S.A.*
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Sleep Train Target entity description: Sleep Train is a former American mattress retail chain known for its extensive network of bedding stores, particularly in the western United States.
-
A.
Night Train
Night Train is a celebrated jazz album featuring bassist Ray Brown, known for its swinging, blues-inflected interpretations of standards.
-
B.
Night Train
"Night Train" is a song by the English alternative rock band Keane, known for its melodic style and emotive lyrics.
-
C.
Light Train
Light Train is a type of urban rail transit system characterized by relatively low weight vehicles, moderate capacity, and operation often on dedicated or semi-exclusive tracks for short- to medium-distance passenger transport.
-
D.
Go By Train
"Go By Train" is the iconic neon-lit slogan displayed atop Portland Union Station that promotes rail travel and has become a recognizable symbol of the city.
-
E.
Downbound Train
"Downbound Train" is a somber, narrative-driven rock song by Bruce Springsteen that appears on his 1984 album *Born in the U.S.A.*
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
defunct company
ⓘ
mattress retail chain ⓘ |
| acquiredBy | Mattress Firm NERFINISHED ⓘ |
| brandStatus | retired ⓘ |
| businessModel | brick-and-mortar retail ⓘ |
| businessStatus | closed ⓘ |
| charitableFocus | support for foster children ⓘ |
| charitableProgram | foster kids program ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| dissolved | 2016 ⓘ |
| foundedAs | regional mattress retailer ⓘ |
| foundedBy | Dale Carlsen NERFINISHED ⓘ |
| hasRetailFormat | specialty mattress store ⓘ |
| headquartersLocation | Rocklin, California NERFINISHED ⓘ |
| inception | 1985 ⓘ |
| industry |
mattress industry
ⓘ
retail ⓘ |
| knownFor | prominent presence along major highways and shopping centers in the West Coast ⓘ |
| locationOfHeadquartersRegion | Sacramento metropolitan area NERFINISHED ⓘ |
| marketSegment | consumer bedding and mattresses ⓘ |
| notableFor |
extensive network of bedding stores in the western United States
ⓘ
radio and television advertising campaigns ⓘ |
| numberOfLocations | over 300 ⓘ |
| operatedAs | privately held company ⓘ |
| operatedIn |
California
NERFINISHED
ⓘ
Idaho NERFINISHED ⓘ Nevada NERFINISHED ⓘ Oregon NERFINISHED ⓘ Washington NERFINISHED ⓘ other western U.S. states ⓘ |
| parentOrganization | Mattress Firm NERFINISHED ⓘ |
| product |
bedding
ⓘ
mattresses ⓘ |
| serviceArea | western United States NERFINISHED ⓘ |
| slogan | Your Ticket to a Better Night’s Sleep ⓘ |
| successor | Mattress Firm-branded stores NERFINISHED ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Sleep Train Description of subject: Sleep Train is a former American mattress retail chain known for its extensive network of bedding stores, particularly in the western United States.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Sleep Train Pavilion