I've sewn in my speakers to keep them from moving around inside the band.
From the first posts, it seemed that the BAND was slipping down at night when sleeping. That's why I suggested what I said.
But, if it's the SPEAKERS slipping around inside the band during sleep, then sewing them in the right place is best. Be careful to have them steady in the right place by listening to them a few times, then sew both sides of the speaker. Be careful not to puncture the speaker wire and you're good to go. My Sleephones are way better since I've done this, it's an awesome fix.
From the first posts, it seemed that the BAND was slipping down at night when sleeping. That's why I suggested what I said.
But, if it's the SPEAKERS slipping around inside the band during sleep, then sewing them in the right place is best. Be careful to have them steady in the right place by listening to them a few times, then sew both sides of the speaker. Be careful not to puncture the speaker wire and you're good to go. My Sleephones are way better since I've done this, it's an awesome fix.