What is the sound insulation effect of the spacecraft?

Many people question the outside worldSpace capsuleIs the sound insulation effect not good? I can't sleep when it rains. Is that really the case? In fact, the sound insulation effect of our spacecraft is very good. We installed 10cm thick polyurethane on the ceiling. Polyurethane can provide insulation and sound insulation.

Secondly, we have reserved a 15 centimeter blank area at the top, which prevents noise from directly transmitting to our spacecraft, further enhancing our sound insulation effect. Under such multiple sound insulation effects, not to mention rain and hail.