How does the nap glance works, with 17.26? Should I enter the sleep mode first?

Question

With 17.24, I was happily surprised that the watch noticed a nap I did during the day. 
 
 But since 17.26 it isn't the case anymore. 
 Is there something I should do first, before starting a nap?

afarnedi · Answer

I believe the watch itself can recognize when you're sleeping and when you're just resting. You shouldn't manually activate the nap but if you do, that helps because sometimes even if you have a proper nap the watch doesn't count it.