It depends on the hedgehog and how long water sits before she drinks it. If a hedgehog is very temperature sensitive then drinking cold water could affect her but unless hedgie gets right up and drinks as soon as the water is put in the cage, it usually warms to room temperature fairly quickly.

 

Or unless your hedgehog has a habit of sticking their face in the bowl... I just had a memory of when I switched up the food/water bowl locations and Sylvie took a face dive into a bowl of water thinking it was food. :roll: :lol: oh she was not impressed