The issue where you could respawn in the wrong location in various worlds has been fixed. To make sure that your position is set properly, it's important that you try to sleep in a bed across all servers that you're active on, at least once!

In recent versions of the game, your spawn is set whenever you try to sleep in a bed, even during daytime. Furthermore, to get phantoms to leave you alone, you only need to rest in a bed until the screen fully dims out - you don't need to skip the night entirely!