Ds 20 months likes to have a drink of water in his cot at bedtime, during the day he drinks from a tommee tippee free flow cup but have found that during the night when he's had a drink, he's falling back to sleep with it in his hand, and therefore on its side. Then he wakes around 2am presumably because himself and his bed is sodden, cue a middle of the night total bed and clothes change. Has anyone got a suggestion of an amazing spill proof toddler cup please??