If you are connected to your wireless router over Wi-Fi, make sure that the console remains in range of the router when it is placed in sleep mode and that there is no metal or electronic equipment between the console and the router.Confirm your console has an active internet connection.Restart the console by holding down the POWER Button for at least 3 seconds, then selecting Power Options and Restart.Ensure that your console has the latest system version.Downloads can also be initiated from your PC or smart device while the console is in sleep mode.
Software and DLC can be downloaded to your Nintendo Switch console while it is in sleep mode as long as it is connected to the internet and there is sufficient space in the system memory or on an inserted microSD card.