Set spawnpoint as if bed was used

Im messing around with spawnpoints. Is there a way to set a spawnpoint as if it were a bed interaction? I.e. change the players spawnpoint and the reset it how it was? I know you could check if the desired coords are a bed and if so set the spawn there. The problem is the spawpoint persists after the bed is broken. How does the game differentiate between a /spawnpoint spawn and a bed spawn?