The second the night comes around, every kid is fueled with some demonic energy that refuses to dwindle away. And they stay active for hours at end and when it is time for them to sleep, it is impossible to calm them down.
For that purpose, you have to sit them down and give them their favorite toy; this elephant pillow! They will end up cuddling with it soon enough and slip into a deep slumber. As this becomes a habit, your kid will start growing in affection to this toy!