[TylerE]

Really, for sleeping just get a good set of passive earmuffs like shooters use. Cost about $20 and will provide 25-30db of real noise reduction (and unlike active NC will also work on non-periodic sounds like sirens or revving car engines). Can double up with foam earplugs too for even more blockage.

[dahfizz]

Where do you people live that you need ear muffs capable of deafening gun shots just to sleep??

[TylerE]

Anywhere noisy? When used around guns that don't (nearly) deafen them, just bring them down to non-damage causing levels.

[mgkimsal]

FWIW, I use cheap dollar store headphones - $4-5 - with white noise from the phone to sleep. they typically last 1-3 months.