Peavey Electric guitar Owner's Manual page 9

Storage & Travel
Your guitar is a piece of art that must be protected.
When you are traveling with your instrument, loosen
the tuning knobs a turn or two to take pressure off
the neck, and protect it with a gig bag or case. While
a gig bag offers some protection, mainly from dust,
a hardshell case offers the best protection. If you
plan to store your guitar for a long period of time,
remember to slightly loosen your strings to
relieve pressure on the neck. As with any piece
of art, don't throw it in your trunk and leave
it in -10° or 110° weather! Always keep you
guitar stored at room temperature, and
avoid extreme changes in temperature
or humidity.