Idea about funny cat album is moving when not self-aware (14)

I believe the answer is:

noctambulation

'moving when not self-aware' is the definition.
(noctambulation means sleepwalking)

'idea about funny cat album' is the wordplay.
'idea' becomes 'notion' (notion is a kind of idea).
'about' is an insertion indicator.
'funny' indicates an anagram.
'cat'+'album'='catalbum'
'catalbum' anagrammed gives 'ctambula'.
'notion' going around 'ctambula' is 'NOCTAMBULATION'.

'is' acts as a link.

I've seen this clue in The Times.

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