Delighted with this purchase (yet). The opening is wide enough, it allows pouring water through large funnel (for safety). Hot water directly from the tap is meaningless, because it is just warm and cools very quickly. It supports the heated water to the kettle (wait 1 minute there is no more boiling) and pour slowly. Retains heat longer if put in the bed, we find it still warm in the morning. It looks much like those sold 4 times cheaper by a famous chain of German hard discount stores L ... l. ;) Except those purchased in this store fled quickly, thermoplastic crack. Hopefully it will last longer. I réviserais my review if needed, pending I recommend it. Think of the empty and dry in the open if unused.
