why not tumble dry i put mine in when its getting a bit flat and unfluffy and 15 mins later bingo a fluffy fluffy (make sure its wet when you put it in or it just burns the fluffiness)i keep whichever one's that have been in my pants all day...in the pants, lob them into the machine and they are fine.
( don't tumble dry them though!!! >.<)
I found out yesterday why you shouldnt tumble dry them....it melted and reset in a curvy shape so it can no longer even fit in a barrelwhy not tumble dry i put mine in when its getting a bit flat and unfluffy and 15 mins later bingo a fluffy fluffy (make sure its wet when you put it in or it just burns the fluffiness)