Bale netted his first goal since completing his return to Spurs in the transfer window to secure a 2-1 victory for Mourinho’s side.
Harry Kane’s early penalty had given Spurs the lead but Brighton appeared on course to hold out for a draw after Tariq Lamptey’s equaliser in the 56th minute.
However, with 17 minutes remaining Bale met Sergio Reguilon’s cross to head Spurs back in front.
And after the match, Mourinho joked that he will be checking Madrid’s website to see if their on-loan player gets a mention for scoring Tottenham’s winner.
‘I said already for about a week or so he is improving and I said that not just by watching him but just by the data that supports our training process,’ said Mourinho.
‘The good thing is Gareth knows, we share ideas and feelings. He doesn’t have 90 minutes of a Premier League match in his legs yet.
‘So we are using the Europa League to complement his training process. We are using some matches in the Premier League when we decide to play him and the normal tendency will be of course for him to be better and better.
‘That’s it, he will start again on Thursday. Even in a Europa League match where the intensity is different to the Premier League I will not play him for 90 minutes, I will always have this caare with him until we feel he’s ready.
‘Of course, I’m very pleased with him, I’m pleased especially for him because he deserves that.
‘When I have five minutes I’m going to Safari to look on Madrid’s website to see what they say.’