How to enter details for biphasic sleep for more accurate body battery

Am using Vivosmart 4, I sleep in a biphasic manner, awake for 1 to 2 sleep cycles each night, ie 90-180 mins. Is there anyway to include this information in the "sleep" stats? Can I manually turn on and off sleep mode?

As this wakeful period is recorded as light + REM sleep. If not, the more pertinent question is, does this "inaccuracy" affect Body Battery? Since movements, stress and HR are registered during wakefulness. Thanks!Blush