You should take advantage of Connected Standby / Modern standby for Windows 10 as only modern applications that are registered can send a limited amount of network traffic at a scheduled interval, which means Connected Standby generally offers benefits. However if you want to use basic sleep instead, you can disable the feature in registry edit:
- Start the registry editor (regedit.exe).
- Move to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power.
- Double-click CsEnabled and set to 0, then click OK.
S3 = Basic Sleep
S0 = Modern Standby