Looking for some help... I helped a friend book a flight to PEK in February. My travel agent even managed to help her get an exit row. The downside is that my friend does not do well with cold (gets sick easily) and unless something has changed, my experience with sitting near or in the exit rows is that it gets quite chilly when you're in flight.. My friend is not an experienced traveler so she doesn't think about things like this.

Anyway, I've given it some thought and here are her options (feel free to add to them) and I'm wondering which would be the best...

1) Normal blanket (airline provided)... don't think this would be good enough for her. She gets cold in the office easily... also kinda worried where the blanket has been as well.

2) Her winter jacket... not sure if this would be sufficient for the whole flight from one end to the other. But it would not increase her carry-on.

3) Her own blanket... not sure if she has one that is light or sufficient.

4) Electric blanket... no clue if AC would allow this... or if the plugs would handle the draw, but the blanket can be small enough for her.

5) Hot water bottle... ask the onboard CC to fill... not sure if the CC would do this for her. Also there is a limit to temperature control.

I did a cursory search in the forums.... most of the threads are 5+ years old, ones that were not spoke mostly of taking a space blanket or putting on more layers. I'm just trying to make sure that her trip doesn't make her sick... I would lean towards #3 or #4 , but not sure if #3 is sufficient for her or if the plane would support #4 . #5 would be a consideration if anyone can advise if it could be done.

Any input/experiences would be appreciated.