Continued and prevented one from going to bed (4,2)

I believe the answer is:

kept up

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'continued' is the definition.
(keeping up is a kind of continuing)

'prevented one from going to bed' is the wordplay.
'prevented' becomes 'kept' (keeping is a kind of preventing).
'one from' says to put letters next to each other.
'going to bed' becomes 'up' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'kept'+'up'='KEPT UP'

'and' is the link.

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