I'm using Windows 10.
I'm in Wahoo Beach, in the Jungle Farm Plot.
Steps:
1. Go inside your house, next to the furniture.
2. Press Escape.
3. Click on the furniture (bed or the tool to paint the house).
4. Check that the message "Should I go to bed now?" or any other message appears.
Also:
If you click on the bed and click on "Sleep", after setting the alarm and clicking again on "Sleep", the loading screen "Zzz" will be running forever until you press Escape again.

Don't know if that's really a bug. If it is, I don't really want it to be fixed, because I always pause my game like this while organizing my inventory or even when cooking, just to save some time in-game. So, while it's not very logical, it has its advantages. ;)