Carpet Indentations.

[calloway]

Just start having sex in those areas.. it should adjust accordingly

 

[ducttape]

Steam.

Or sex.

Or steamy sex.

 

[Sasha Jones]

Yep, steam will work.
Or try filling a spray bottle with warm water and spraying the flattened areas then 'fluff' them up by rubbing them with your fingers or a soft brush. Then vaccuum once dry.
You might have to do it a couple of times.

 

[John Dough]

Was told a long time ago by a carpet guy that placing ice cubes in the indentation will work.

 

[Tangwhich]

I was told to fluff it up with a fork, but I've not tried it..

 

[ducttape]

Sounds like you need a fluffer.