When sleeping and you click on a different application it will put you back in the game but your keyboard is still on the other application while the mouse stays in Minecraft.

When you sleep in Bedrock it will give you a mouse curser which I might use in another application, but the game doesn’t pause so when my character wakes up it puts my mouse back in the game while my keyboard is still on the other application splitting my controls across 2 applications. The only way I've found to fix the issue is to use ctrl-alt-del and open task manager to get the mouse out of Minecraft, and then using the windows bar to close Minecraft which then opens the esc menu in the game. In java when you click offscreen it will open the esc menu automatically which would be a good solution to this problem.