What is usually in a hotel suite rather than just a normal hotel room?

Like the Holiday Inn Express for example. what's the difference between their regular rooms %26amp; their suite rooms? i know they are a little more luxurious i guess but what is inside it? i tried searching on their website %26amp; tried searching google but couldn't find anything. :(What is usually in a hotel suite rather than just a normal hotel room?
Usually a suite has a sitting area to watch tv and sometimes it will have a little kitchette...

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