it is very hard to go through UK
customs
No, imported mattresses do not have to go through customs because they are not considered a hazardous material.
to the airport
I had to go through customs at the airport
lo
No, he does not exist, on the other hand, someone dressed like Santa would have to go through customs and he better have a passport.
absolutely, and make sure to bring your passport
Yes you do.
In the airport.
No.
Coutumes are customs. Things that are usual, customary. Do not confuse with Douanes, which are the Customs you go through at a border.
If you disembark your plane; yes.
For International Flights yes, for domestic flights there is a security check but it is less formal than customs.