Set the background tab inactivity timeout for sleeping tabs: registry value SleepingTabsTimeout (Recommended)UserHKCU\Software\Policies\Microsoft\Edge\Recommended

Policy ID
SleepingTabsTimeout_recommended
Scope
Computer Configuration, User Configuration
Supported on
Microsoft Edge version 88, Windows 7 or later
Source
Microsoft Edge Policy Templates (version 155.0.4283.45)
Category
Microsoft Edge - Default Settings (users can override) › Sleeping tabs settings

Registry

SleepingTabsTimeout

REG_DWORDUserComputer
Enabled value
Depends on the option value
Element
Set the background tab inactivity timeout for sleeping tabs
Options
ItemStored value
30 seconds of inactivity30
5 minutes of inactivity300
15 minutes of inactivity900
30 minutes of inactivity1800
1 hour of inactivity3600
2 hours of inactivity7200
3 hours of inactivity10800
6 hours of inactivity21600
12 hours of inactivity43200
Apply with .reg · CMD · PowerShell
UserPer-account setting
.reg
Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Policies\Microsoft\Edge\Recommended]

; Options (use only one)
; 30 seconds of inactivity
"SleepingTabsTimeout"=dword:0000001e
; 5 minutes of inactivity
"SleepingTabsTimeout"=dword:0000012c
; 15 minutes of inactivity
"SleepingTabsTimeout"=dword:00000384
; 30 minutes of inactivity
"SleepingTabsTimeout"=dword:00000708
; 1 hour of inactivity
"SleepingTabsTimeout"=dword:00000e10
; 2 hours of inactivity
"SleepingTabsTimeout"=dword:00001c20
; 3 hours of inactivity
"SleepingTabsTimeout"=dword:00002a30
; 6 hours of inactivity
"SleepingTabsTimeout"=dword:00005460
; 12 hours of inactivity
"SleepingTabsTimeout"=dword:0000a8c0
CMD
:: Options (use only one)

:: 30 seconds of inactivity
reg add "HKCU\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 30 /f
:: 5 minutes of inactivity
reg add "HKCU\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 300 /f
:: 15 minutes of inactivity
reg add "HKCU\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 900 /f
:: 30 minutes of inactivity
reg add "HKCU\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 1800 /f
:: 1 hour of inactivity
reg add "HKCU\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 3600 /f
:: 2 hours of inactivity
reg add "HKCU\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 7200 /f
:: 3 hours of inactivity
reg add "HKCU\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 10800 /f
:: 6 hours of inactivity
reg add "HKCU\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 21600 /f
:: 12 hours of inactivity
reg add "HKCU\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 43200 /f
PowerShell
# Common: create the key
New-Item -Path 'HKCU:\Software\Policies\Microsoft\Edge\Recommended' -Force | Out-Null

# Options (use only one)
# 30 seconds of inactivity
New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 30 -Force | Out-Null
# 5 minutes of inactivity
New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 300 -Force | Out-Null
# 15 minutes of inactivity
New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 900 -Force | Out-Null
# 30 minutes of inactivity
New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 1800 -Force | Out-Null
# 1 hour of inactivity
New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 3600 -Force | Out-Null
# 2 hours of inactivity
New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 7200 -Force | Out-Null
# 3 hours of inactivity
New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 10800 -Force | Out-Null
# 6 hours of inactivity
New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 21600 -Force | Out-Null
# 12 hours of inactivity
New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 43200 -Force | Out-Null
ComputerMachine-wide setting
.reg
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge\Recommended]

; Options (use only one)
; 30 seconds of inactivity
"SleepingTabsTimeout"=dword:0000001e
; 5 minutes of inactivity
"SleepingTabsTimeout"=dword:0000012c
; 15 minutes of inactivity
"SleepingTabsTimeout"=dword:00000384
; 30 minutes of inactivity
"SleepingTabsTimeout"=dword:00000708
; 1 hour of inactivity
"SleepingTabsTimeout"=dword:00000e10
; 2 hours of inactivity
"SleepingTabsTimeout"=dword:00001c20
; 3 hours of inactivity
"SleepingTabsTimeout"=dword:00002a30
; 6 hours of inactivity
"SleepingTabsTimeout"=dword:00005460
; 12 hours of inactivity
"SleepingTabsTimeout"=dword:0000a8c0
CMD
:: Options (use only one)

:: 30 seconds of inactivity
reg add "HKLM\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 30 /f
:: 5 minutes of inactivity
reg add "HKLM\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 300 /f
:: 15 minutes of inactivity
reg add "HKLM\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 900 /f
:: 30 minutes of inactivity
reg add "HKLM\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 1800 /f
:: 1 hour of inactivity
reg add "HKLM\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 3600 /f
:: 2 hours of inactivity
reg add "HKLM\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 7200 /f
:: 3 hours of inactivity
reg add "HKLM\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 10800 /f
:: 6 hours of inactivity
reg add "HKLM\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 21600 /f
:: 12 hours of inactivity
reg add "HKLM\Software\Policies\Microsoft\Edge\Recommended" /v "SleepingTabsTimeout" /t REG_DWORD /d 43200 /f
PowerShell
# Common: create the key
New-Item -Path 'HKLM:\Software\Policies\Microsoft\Edge\Recommended' -Force | Out-Null

# Options (use only one)
# 30 seconds of inactivity
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 30 -Force | Out-Null
# 5 minutes of inactivity
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 300 -Force | Out-Null
# 15 minutes of inactivity
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 900 -Force | Out-Null
# 30 minutes of inactivity
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 1800 -Force | Out-Null
# 1 hour of inactivity
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 3600 -Force | Out-Null
# 2 hours of inactivity
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 7200 -Force | Out-Null
# 3 hours of inactivity
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 10800 -Force | Out-Null
# 6 hours of inactivity
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 21600 -Force | Out-Null
# 12 hours of inactivity
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Edge\Recommended' -Name 'SleepingTabsTimeout' -PropertyType DWord -Value 43200 -Force | Out-Null