I'm with the 'close enough' group ... and I'd use it for that quilt for that friend ... not only is it funny but it's a genuinely sweet thought - she WILL love it, and love you for it - I hope you go for it .... be sure to let us see it ... and tell us what she says.
I'm really sorry to hear of her horrible illness.
BTW - skinny/sick people get very cold, so put a good batting in it - as an Oregonian (living in the southland) - I can attest to the need for a good warm batting.