If it's not a huge quantity of water, it should be okay. This came up in one of Marie's retreats, where someone kept a carafe of water next to the bed and Marie said that minimal quantity should be fine.
It it feels as if there's too much water energy, though, remember that you can weaken water with wood or control it with earth. Ultimately, it all comes down to the question of whether the energy feels balanced.
All the best!