Working definition
Single Supplement
An added charge when one traveler occupies accommodation priced on the basis of two people sharing.
Translate it
Replace the term with five concrete details
Person: who delivers the service?
Action: what exactly happens?
Duration: how long and how often?
Price: included or separately charged?
Boundary: hospitality, teaching, coaching or care?
Exit: can it be declined or stopped?
Example question
Ask for a sentence without the label
“Please describe what single supplement means in this program, including the staff member, activity, duration, price and any reason a guest should not participate.”
Common questions
Before you decide
Is single supplement a regulated term?
The label alone may not be regulated. Rules depend on the actual service, provider role and jurisdiction.
Why ask for a plain-language description?
Concrete actions, roles and prices are easier to verify than broad wellness vocabulary.
Where can I compare related terms?
Use the CareAtlas comparison desk and ask the provider to define every service in writing.