How do you get rid of the smell from an old thermal rest that hasnt been used in years? thats whay it smells.?

Question

i know that if you don't use things like tents and such and leave them in a bad place they get this bad smell. so should i try washing it with a sponge or just leave it in the sun.

Answer 1

wipe it down with vinegar and water and leave it outside on a nice day,and when inside  spray it with Lysol .