Reading and rest

Today was an ok day. I did some work, did some reading, had some sleep, picked the kids up from school, saw my friend (socially distanced) to drop some flowers off as she was a bit upset due to a family illness. Then home, fed the children, put eldest on zoom for his beavers class, them helped him find things in the house beginning with various letters. H (helmet), O (orange cordial), T (Christmas tree), W (wool) etc. He really enjoyed his beavers class and is getting invested in to the group next week which he is excited about.
Now trying to get the kids to bed without much luck. Eldest goes to sleep no problem at all. Youngest doesn't. It can take hours to get him down, which is very draining and affects the mood of myself and my husband, as well as my son the best day as he is exhausted. I think I need a magic sleep potion for him, as he has struggled with sleep since he was a baby.