But you don't sleep in the cabin...
Sorry to put a damper on the post - but the average noise level in the CRC was measured at 61dBa while the cabin noise levels were 75dBa and peaking at 97dBa.
Not that this necessarily makes any difference to the ability to rest with continuous and irritating peaks like babies crying, doors banging etc.
Also, wonder which 46 pilots were selected for the study, given that management don't trust normal line pilots to provide honest results. Do you have 46 management pilots, or was it the same 4 over and over?!!
(Mind you, that would be an awful lot of flying by management types and there would have been a spike in the ASR's...)