What would cause water to stop flowing from bath faucet for a few hours when the sink and toilet are working fine?

* Mineral deposits: Mineral deposits can build up inside the faucet, restricting the flow of water. This is a common problem in areas with hard water.

* Damaged faucet cartridge: The faucet cartridge is a part that controls the flow of water. If it is damaged or worn out, it can prevent water from flowing from the faucet.

* Clogged aerator: The aerator is a small part at the end of the faucet that mixes air with water to create a stream of water. If the aerator is clogged, it can restrict the flow of water.

* Frozen pipes: If the temperature outside is below freezing, the pipes that supply water to the faucet can freeze. This will prevent water from flowing from the faucet.