My 26 month old is a very good sleeper and always has been, however in the last couple of weeks he started playing a game of 'hiding' under his duvet when we went into him in the morning. He obviously decided that he likes it under there and now he constantly scooches down under his covers. The problem with this is that he then falls asleep under there, overheats, sweats until he is wet through and then wakes up upset about the state he is in. We have tried various methods to stop this from happening, such as removing his duvet and putting him back into a Grobag but he refused point blank to do this. We have also tried him in different types of clothing to keep him cooler and we have just adjusted his covers further down the bed in the feet to foot position to minimise the amount of duvet he can wriggle under but that hasn't made a difference at all! Has anyone experienced anything like this? Any advice or tips and tricks would be gratefully received as checking on him hourly and the changes of bedding/nightwear we are going through every night is starting to get draining.