My almost 7 year old gets thirsty during the night. I bought this so he could have fresh water by his bed at all times with an easy to use sipper feature.
Unfortunately, the rubber tip on the mouth area isn't very sturdy as it split during night 1. He still is able to use it but he just has to use care to avoid dribbling.
Nice bonus of an included carabiner (mine was broken upon arrival though) and a set of brushes to help care for the bottle.