Please bear in mind that it may take at least a week or two for Fela, and indeed all of us, to adjust to the time change.
Even with a good night' sleep, he may become sluggish during the day and his mind may process more slowly.
Most of all, try to get him into bed no later than 22:00 as his body will be telling him it's 23:00.
Thank you for your co-operation!
Carla